1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | #include<iostream> #include<string> using namespace std; int main() { string sarr[25][25]; int f[8][2] = { {-1,-1},{-1,0},{-1,1},{0,1},{1,1},{1,0},{1,-1},{0,-1} }; int N, index, x, y; cin >> N; cin >> index; for (int i = 0; i < 25; i++) for (int j = 0; j < 25; j++) sarr[i][j] = ""; for (int i = 1; i <= N; i++) { for (int j = 1; j <= N; j++) { sarr[i][j] = 'A' + i - 1; sarr[i][j] += j + '0'; } } x = index / N + 1; y = index % N + 1; for (int i = 0; i < 8; i++) { if (sarr[x + f[i][0]][y + f[i][1]] != "") cout << (x + f[i][0] - 1) * N + (y + f[i][1]) - 1 << " "; else cout << "-1 "; } cout << endl; for (int i = 0; i < 8; i++) { if (sarr[x + f[i][0]][y + f[i][1]] != "") cout << sarr[x + f[i][0]][y + f[i][1]] << " "; else cout << "-1 "; } cout << endl; return 0; } |
2019年9月4日 星期三
itsa [C_AR031-中]一維矩陣表示二維平面空間
2019年8月31日 星期六
itsa [C_AR220-易]奇數魔方陣
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | #include<iostream> using namespace std; int main() { int n, m, i, j, ti, tj, num, rsum, csum; int arr1[10], arr[100][100]; int f[2][2] = { {-1,1},{1,0} }; cin >> n; for (int k = 0; k < n; k++) cin >> arr1[k]; for (int k = 0; k < n; k++) { m = arr1[k]; for (int a = 0; a < m; a++) for (int b = 0; b < m; b++) arr[a][b] = 0; i = 0; j = m / 2; num = 2; rsum = 0; csum = 0; arr[i][j] = 1; for (int a = 1; a < m*m; a++) { ti = i + f[0][0]; tj = j + f[0][1]; if ((ti < 0 && tj > m - 1) || (ti >= 0 && tj <= m - 1 && arr[ti][tj] != 0)) { arr[i + f[1][0]][j + f[1][1]] = num; i += f[1][0]; j += f[1][1]; } else if (ti < 0 && tj <= m - 1) { arr[m - 1][tj] = num; i = m - 1; j = tj; } else if (ti >= 0 && tj > m - 1) { arr[ti][0] = num; i = ti; j = 0; } else { arr[ti][tj] = num; i = ti; j = tj; } num++; } for (int a = 0; a < arr1[k]; a++) { for (int b = 0; b < arr1[k]; b++) { if (b > 0) cout << " "; cout << arr[a][b]; } cout << endl; } if (k != n - 1) cout << '-' << endl; } return 0; } |
2018年11月21日 星期三
itsa68 4算數移位相加
移位 例:000123 => 123000 可看成 (向左移*10 向右移*0.1)
原 1*10^2+2*10^1+3*10^0
果 1*10^5+2*10^4+3*10^3 = (1*10^2+2*10^1+3*10^0)*10^3
現在有一個數n,4位數,向右移3次後相加,可寫成
S = n+n*0.1+n*0.01+n*0.001
= n*(1+0.1+0.01+0.001)
= n*1.111
n = S / 1.111
算出來會是除了個位數的其他位數
因為有誤差所以要加回去(進位等)
跑0~20,加完後,判斷移位相加後的結果與S是否相同,即為所求a0
原 1*10^2+2*10^1+3*10^0
果 1*10^5+2*10^4+3*10^3 = (1*10^2+2*10^1+3*10^0)*10^3
現在有一個數n,4位數,向右移3次後相加,可寫成
S = n+n*0.1+n*0.01+n*0.001
= n*(1+0.1+0.01+0.001)
= n*1.111
n = S / 1.111
算出來會是除了個位數的其他位數
因為有誤差所以要加回去(進位等)
跑0~20,加完後,判斷移位相加後的結果與S是否相同,即為所求a0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | #include<iostream> #include<string> #include<cmath> #include<iomanip> using namespace std; bool check(unsigned long long n, unsigned long long s, unsigned long long len) { unsigned long long sum = 0; for (unsigned long long i = 0; i < len; i++) { sum += n; n /= 10; } if (sum - s == 0) return true; return false; } int main() { int found; unsigned long long n, len, res; double div, fr; while (cin >> n) { len = (unsigned long long) (log10(n)) + 1; div = 1; fr = 0.1; found = 0; for (int i = 2; i <= len; i++) { div += fr; fr *= 0.1; } res = (unsigned long long)(n / div); for (int j = 0; j <= 20; j++) { if (check(res + j, n, len)) { cout << res + j << endl; found = 1; break; } } if (found == 0) cout << -1 << endl; } return 0; } |
2018年11月5日 星期一
itsa [C_SL27-中]狀態機 (State Machine)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | #include<iostream> #include<string> using namespace std; int main() { string str; char arr[30][30]; int n, s, x, y; while (cin >> n >> s) { cin >> str; for (int i = 1; i <= n; i++) for (int j = 1; j <= n; j++) cin >> arr[i][j]; x = 0; y = s; cout << s; for (int i = 0; i < str.length(); i++) { for (int j = 1; j <= n; j++) { if (arr[y][j] == str[i]) { cout << j; y = j; break; } } } cout << endl; } return 0; } |
itsa67 4狀態機
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | #include<iostream> #include<string> using namespace std; int main() { string str; char arr[30][30]; int n, s, x, y; while (cin >> n >> s) { cin >> str; for (int i = 1; i <= n; i++) for (int j = 1; j <= n; j++) cin >> arr[i][j]; x = 0; y = s; cout << s; for (int i = 0; i < str.length(); i++) { for (int j = 1; j <= n; j++) { if (arr[y][j] == str[i]) { cout << j; y = j; break; } } } cout << endl; } return 0; } |
2018年10月21日 星期日
itsa [C_GD03-易]線段切割
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #include<iostream> using namespace std; int main() { int n, sum, max; while (cin >> n) { sum = 0; max = 0; for (int i = 1; i <= n; i++) { if (sum + i > n) break; sum += i; max++; } cout << max << endl; } return 0; } |
itsa67 2線段切割
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #include<iostream> using namespace std; int main() { int n, sum, max; while (cin >> n) { sum = 0; max = 0; for (int i = 1; i <= n; i++) { if (sum + i > n) break; sum += i; max++; } cout << max << endl; } return 0; } |
2018年10月8日 星期一
C++魔方陣
魔方陣
成績: 20 / 倒扣: 0.1
魔方陣是大家所熟知的數學問題,其規則是方陣中每一行、每一列以及對角線三個數字的總和都要相等。
數字 1 填入第一列中間行的位置。
輸入說明:
第一列的數字 n 代表總共有 n 個題組
每個題組的第一列的數字 m 代表 m x m 的魔方陣, m >= 3,奇數。
第二列數字 r 代表第一列到第m列中的第 r 列,1<=r<=m。
第二列數字 c 代表第一行到第m行中的第 c 列行,1<=c<=m。
輸出說明:
每一題組輸出兩列數字,
第 r 列的 d1-d2+d3-d4+...+dm 的值和第 c 行 d1-d2+d3-d4+...+dm 的值。
範例:
輸入
1
3
2
3
輸出
5
1
數字 1 填入第一列中間行的位置。
輸入說明:
第一列的數字 n 代表總共有 n 個題組
每個題組的第一列的數字 m 代表 m x m 的魔方陣, m >= 3,奇數。
第二列數字 r 代表第一列到第m列中的第 r 列,1<=r<=m。
第二列數字 c 代表第一行到第m行中的第 c 列行,1<=c<=m。
輸出說明:
每一題組輸出兩列數字,
第 r 列的 d1-d2+d3-d4+...+dm 的值和第 c 行 d1-d2+d3-d4+...+dm 的值。
範例:
輸入
1
3
2
3
輸出
5
1
1.數字 1 填入第一列中間行的位置
2.以1為起點,往右上方延伸
3.超出列範圍的(<0),則填入該行最後列
4.超出行範圍的(>m),則填入該列第一行
5.遇到不為零或是超出列(<0)與行(>m),則填入目前的數下面一格
6.沒有上述狀況,則填入右上方格
3X3為
8 1 6
3 5 7
4 9 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | #include<iostream> using namespace std; int main() { int n, m, r, c, i, j, ti, tj, num, rsum, csum; int arr[100][100]; int f[2][2] = { {-1,1},{1,0} }; cin >> n; for (int k = 0; k < n; k++) { cin >> m; cin >> r; cin >> c; for (int a = 0; a < m; a++) for (int b = 0; b < m; b++) arr[a][b] = 0; i = 0; j = m / 2; num = 2; rsum = 0; csum = 0; arr[i][j] = 1; for (int a = 1; a < m*m; a++) { ti = i + f[0][0]; tj = j + f[0][1]; if ((ti < 0 && tj > m - 1) || (ti >= 0 && tj <= m - 1 && arr[ti][tj] != 0)) { arr[i + f[1][0]][j + f[1][1]] = num; i += f[1][0]; j += f[1][1]; } else if (ti < 0 && tj <= m - 1) { arr[m - 1][tj] = num; i = m - 1; j = tj; } else if (ti >= 0 && tj > m - 1) { arr[ti][0] = num; i = ti; j = 0; } else { arr[ti][tj] = num; i = ti; j = tj; } num++; } for (int b = 0; b < m; b++) { if (b % 2 == 0) { rsum += arr[r - 1][b]; csum += arr[b][c - 1]; } else { rsum -= arr[r - 1][b]; csum -= arr[b][c - 1]; } } cout << rsum << endl; cout << csum << endl; } return 0; } |
itsa [C_AR62-中]矩陣相乘
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | #include<iostream> using namespace std; int main() { int m, n, t; int a[100][100], b[100][100], c[100][100]; cin >> m >> n; for (int i = 0; i < m; i++) for (int j = 0; j < n; j++) cin >> a[i][j]; cin >> n >> t; for (int i = 0; i < n; i++) for (int j = 0; j < t; j++) cin >> b[i][j]; for (int i = 0; i < m; i++) { for (int j = 0; j < t; j++) { c[i][j] = 0; for (int k = 0; k < n; k++) c[i][j] = c[i][j] + a[i][k] * b[k][j]; } } for (int i = 0; i < m; i++) { for (int j = 0; j < t; j++) { if (j > 0) cout << " "; cout << c[i][j]; } cout << endl; } return 0; } |
2018年9月15日 星期六
itsa [DP40-中]Find the Sequence Pattern
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | #include<iostream> #include<string> using namespace std; int main() { string s1, s2, lstr, sstr; string s[100]; int a, b, x; while (getline(cin, s1)) { bool ischeck = false; b = 0; x = 0; getline(cin, s2); lstr = s1; sstr = s2; if (s1.length() < s2.length()) { lstr = s2; sstr = s1; } for (int j = sstr.length(); j > 1; j--) { a = 0; if (j != b && ischeck) break; for (int i = 0; i <= sstr.length() - j; i++) { if (string::npos != lstr.find(sstr.substr(i, j))) { for (int k = 0; k < x; k++) if (s[k].compare(sstr.substr(i, j)) == 0) a = 1; if (a == 0) { s[x++] = sstr.substr(i, j); b = j; ischeck = true; } } } } if (ischeck) { if (x > 1) { for (int i = 0; i < x - 1; i++) { for (int j = i + 1; j < x; j++) { if (s[i].compare(s[j]) > 0) { string tmp = s[i]; s[i] = s[j]; s[j] = tmp; } } } } for (int i = 0; i < x; i++) cout << s[i] << endl; } else cout << "No common sequence!" << endl; } return 0; } |
itsa66 5Find the Sequence Pattern
1.找最長共同子字串,用長度小的找長度長的,長度2以上
2.最長共同子字串可以有很多個,要去掉重複的
3.輸出要按字母順序排列
2.最長共同子字串可以有很多個,要去掉重複的
3.輸出要按字母順序排列
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | #include<iostream> #include<string> using namespace std; int main() { string s1, s2, lstr, sstr; string s[100]; int a, b, x; while (getline(cin, s1)) { bool ischeck = false; b = 0; x = 0; getline(cin, s2); lstr = s1; sstr = s2; if (s1.length() < s2.length()) { lstr = s2; sstr = s1; } for (int j = sstr.length(); j > 1; j--) { a = 0; if (j != b && ischeck) break; for (int i = 0; i <= sstr.length() - j; i++) { if (string::npos != lstr.find(sstr.substr(i, j))) { for (int k = 0; k < x; k++) if (s[k].compare(sstr.substr(i, j)) == 0) a = 1; if (a == 0) { s[x++] = sstr.substr(i, j); b = j; ischeck = true; } } } } if (ischeck) { if (x > 1) { for (int i = 0; i < x - 1; i++) { for (int j = i + 1; j < x; j++) { if (s[i].compare(s[j]) > 0) { string tmp = s[i]; s[i] = s[j]; s[j] = tmp; } } } } for (int i = 0; i < x; i++) cout << s[i] << endl; } else cout << "No common sequence!" << endl; } return 0; } |
2018年9月13日 星期四
itsa [C_ST125-易]字串切割
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #include<iostream> #include<string> #include<sstream> using namespace std; void replaceD(string &s) { int i = 0; while (i < s.length()) { if (s[i] == ':' || s[i] == ',' || s[i] == ';') s[i] = ' '; i++; } } int main() { int N, x = 0; string s, str[100]; cin >> N; getline(cin, s); for (int i = 0; i < N; i++) { x = 0; getline(cin, s); cout << "Original string: " << s << endl; replaceD(s); stringstream ss(s); while (ss >> str[x]) x++; cout << "Tokens found:\n"; for (int j = 0; j < x; j++) cout << str[j] << endl; } return 0; } |
itsa [C_MM359-易]未知數
#include<iostream>
#include<string>
#include<cmath>
#include<cstdlib>
#include<iomanip>
using namespace std;
int main()
{
double ans;
string s1, s2, s3, s4, s5;
while (cin >> s1 >> s2 >> s3 >> s4 >> s5)
{
ans = 0;
if (s1 == "x")
{
if (s2 == "+")
ans = atof(s5.c_str()) - atof(s3.c_str());
else if (s2 == "-")
ans = atof(s5.c_str()) + atof(s3.c_str());
else if (s2 == "*")
ans = atof(s5.c_str()) / atof(s3.c_str());
else
ans = atof(s5.c_str()) * atof(s3.c_str());
}
else if (s3 == "x")
{
if (s2 == "+")
ans = atof(s5.c_str()) - atof(s1.c_str());
else if (s2 == "-")
ans = atof(s1.c_str()) - atof(s5.c_str());
else if (s2 == "*")
ans = atof(s5.c_str()) / atof(s1.c_str());
else
ans = atof(s1.c_str()) / atof(s5.c_str());
}
else
{
if (s2 == "+")
ans = atof(s1.c_str()) + atof(s3.c_str());
else if (s2 == "-")
ans = atof(s1.c_str()) - atof(s3.c_str());
else if (s2 == "*")
ans = atof(s1.c_str()) * atof(s3.c_str());
else
ans = atof(s1.c_str()) / atof(s3.c_str());
}
ans = floor(ans * 10) / 10;
cout << fixed << setprecision(1) << ans << endl;
}
return 0;
}
#include<string>
#include<cmath>
#include<cstdlib>
#include<iomanip>
using namespace std;
int main()
{
double ans;
string s1, s2, s3, s4, s5;
while (cin >> s1 >> s2 >> s3 >> s4 >> s5)
{
ans = 0;
if (s1 == "x")
{
if (s2 == "+")
ans = atof(s5.c_str()) - atof(s3.c_str());
else if (s2 == "-")
ans = atof(s5.c_str()) + atof(s3.c_str());
else if (s2 == "*")
ans = atof(s5.c_str()) / atof(s3.c_str());
else
ans = atof(s5.c_str()) * atof(s3.c_str());
}
else if (s3 == "x")
{
if (s2 == "+")
ans = atof(s5.c_str()) - atof(s1.c_str());
else if (s2 == "-")
ans = atof(s1.c_str()) - atof(s5.c_str());
else if (s2 == "*")
ans = atof(s5.c_str()) / atof(s1.c_str());
else
ans = atof(s1.c_str()) / atof(s5.c_str());
}
else
{
if (s2 == "+")
ans = atof(s1.c_str()) + atof(s3.c_str());
else if (s2 == "-")
ans = atof(s1.c_str()) - atof(s3.c_str());
else if (s2 == "*")
ans = atof(s1.c_str()) * atof(s3.c_str());
else
ans = atof(s1.c_str()) / atof(s3.c_str());
}
ans = floor(ans * 10) / 10;
cout << fixed << setprecision(1) << ans << endl;
}
return 0;
}
itsa [C_AR69-中]羅馬數字系統
#include<iostream>
#include<string>
using namespace std;
int main()
{
string one[4] = { "I","X","C","M" };
string five[3] = { "V","L","D" };
string s;
int n;
cin >> n;
getline(cin, s);
for (int k = 0; k < n; k++)
{
getline(cin, s);
for (int i = 0; i < s.length(); i++)
{
int subNum = s[i] - '0';
int num = 0;
if (subNum < 5)
num = subNum % 4;
else if (subNum > 5)
num = (subNum - 5) % 4;
if (subNum >= 1 && subNum <= 4)
{
if (num == 0)
{
cout << one[s.length() - i - 1];
cout << five[s.length() - i - 1];
}
else
{
for (int j = 0; j < num; j++)
cout << one[s.length() - i - 1];
}
}
else if (subNum == 5)
cout << five[s.length() - i - 1];
else if (subNum >= 6 && subNum <= 9)
{
if (num == 0)
{
cout << one[s.length() - i - 1];
cout << one[s.length() - i];
}
else
{
cout << five[s.length() - i - 1];
for (int j = 0; j < num; j++)
cout << one[s.length() - i - 1];
}
}
}
cout << endl;
}
return 0;
}
#include<string>
using namespace std;
int main()
{
string one[4] = { "I","X","C","M" };
string five[3] = { "V","L","D" };
string s;
int n;
cin >> n;
getline(cin, s);
for (int k = 0; k < n; k++)
{
getline(cin, s);
for (int i = 0; i < s.length(); i++)
{
int subNum = s[i] - '0';
int num = 0;
if (subNum < 5)
num = subNum % 4;
else if (subNum > 5)
num = (subNum - 5) % 4;
if (subNum >= 1 && subNum <= 4)
{
if (num == 0)
{
cout << one[s.length() - i - 1];
cout << five[s.length() - i - 1];
}
else
{
for (int j = 0; j < num; j++)
cout << one[s.length() - i - 1];
}
}
else if (subNum == 5)
cout << five[s.length() - i - 1];
else if (subNum >= 6 && subNum <= 9)
{
if (num == 0)
{
cout << one[s.length() - i - 1];
cout << one[s.length() - i];
}
else
{
cout << five[s.length() - i - 1];
for (int j = 0; j < num; j++)
cout << one[s.length() - i - 1];
}
}
}
cout << endl;
}
return 0;
}
itsa66 4羅馬數字系統
1.將羅馬數字存到陣列,區分五跟十的倍數。
2.以五為分界,前四做前輸出,後四做後輸出。
3.以迴圈做對應輸出。
注意:陣列存的方式會改變輸出時的陣列編號。
#include<iostream>
#include<string>
using namespace std;
int main()
{
string one[4] = { "I","X","C","M" };
string five[3] = { "V","L","D" };
string s;
int n;
cin >> n;
getline(cin, s);
for (int k = 0; k < n; k++)
{
getline(cin, s);
for (int i = 0; i < s.length(); i++)
{
int subNum = s[i] - '0';
int num = 0;
if (subNum < 5)
num = subNum % 4;
else if (subNum > 5)
num = (subNum - 5) % 4;
if (subNum >= 1 && subNum <= 4)
{
if (num == 0)
{
cout << one[s.length() - i - 1];
cout << five[s.length() - i - 1];
}
else
{
for (int j = 0; j < num; j++)
cout << one[s.length() - i - 1];
}
}
else if (subNum == 5)
cout << five[s.length() - i - 1];
else if (subNum >= 6 && subNum <= 9)
{
if (num == 0)
{
cout << one[s.length() - i - 1];
cout << one[s.length() - i];
}
else
{
cout << five[s.length() - i - 1];
for (int j = 0; j < num; j++)
cout << one[s.length() - i - 1];
}
}
}
cout << endl;
}
return 0;
}
2.以五為分界,前四做前輸出,後四做後輸出。
3.以迴圈做對應輸出。
注意:陣列存的方式會改變輸出時的陣列編號。
#include<iostream>
#include<string>
using namespace std;
int main()
{
string one[4] = { "I","X","C","M" };
string five[3] = { "V","L","D" };
string s;
int n;
cin >> n;
getline(cin, s);
for (int k = 0; k < n; k++)
{
getline(cin, s);
for (int i = 0; i < s.length(); i++)
{
int subNum = s[i] - '0';
int num = 0;
if (subNum < 5)
num = subNum % 4;
else if (subNum > 5)
num = (subNum - 5) % 4;
if (subNum >= 1 && subNum <= 4)
{
if (num == 0)
{
cout << one[s.length() - i - 1];
cout << five[s.length() - i - 1];
}
else
{
for (int j = 0; j < num; j++)
cout << one[s.length() - i - 1];
}
}
else if (subNum == 5)
cout << five[s.length() - i - 1];
else if (subNum >= 6 && subNum <= 9)
{
if (num == 0)
{
cout << one[s.length() - i - 1];
cout << one[s.length() - i];
}
else
{
cout << five[s.length() - i - 1];
for (int j = 0; j < num; j++)
cout << one[s.length() - i - 1];
}
}
}
cout << endl;
}
return 0;
}
itsa66 3字串切割
#include<iostream>
#include<string>
#include<sstream>
using namespace std;
void replaceD(string &s)
{
int i = 0;
while (i < s.length())
{
if (s[i] == ':' || s[i] == ',' || s[i] == ';')
s[i] = ' ';
i++;
}
}
int main()
{
int N, x = 0;
string s, str[100];
cin >> N;
getline(cin, s);
for (int i = 0; i < N; i++)
{
x = 0;
getline(cin, s);
replaceD(s);
stringstream ss(s);
while (ss >> str[x])
x++;
cout << "Tokens found:\n";
for (int j = 0; j < x; j++)
cout << str[j] << endl;
}
return 0;
}
#include<string>
#include<sstream>
using namespace std;
void replaceD(string &s)
{
int i = 0;
while (i < s.length())
{
if (s[i] == ':' || s[i] == ',' || s[i] == ';')
s[i] = ' ';
i++;
}
}
int main()
{
int N, x = 0;
string s, str[100];
cin >> N;
getline(cin, s);
for (int i = 0; i < N; i++)
{
x = 0;
getline(cin, s);
replaceD(s);
stringstream ss(s);
while (ss >> str[x])
x++;
cout << "Tokens found:\n";
for (int j = 0; j < x; j++)
cout << str[j] << endl;
}
return 0;
}
itsa66 2未知數
1.無條件捨去,引用<cmath>的floor。
2.字串轉整數或小數,要先轉字元, "c_str()"可以將字串轉字元,但要看情況使用。
例:1111 2222 333
s[ 0 1 2 ]
s[0][1] = 1 這時有[][]就不能用s[0][1].c_str() 要不然會錯喔!
注意:可以為小數,運算要正確。
#include<iostream>
#include<string>
#include<cmath>
#include<cstdlib>
#include<iomanip>
using namespace std;
int main()
{
double ans;
string s1, s2, s3, s4, s5;
while (cin >> s1 >> s2 >> s3 >> s4 >> s5)
{
ans = 0;
if (s1 == "x")
{
if (s2 == "+")
ans = atof(s5.c_str()) - atof(s3.c_str());
else if (s2 == "-")
ans = atof(s5.c_str()) + atof(s3.c_str());
else if (s2 == "*")
ans = atof(s5.c_str()) / atof(s3.c_str());
else
ans = atof(s5.c_str()) * atof(s3.c_str());
}
else if (s3 == "x")
{
if (s2 == "+")
ans = atof(s5.c_str()) - atof(s1.c_str());
else if (s2 == "-")
ans = atof(s1.c_str()) - atof(s5.c_str());
else if (s2 == "*")
ans = atof(s5.c_str()) / atof(s1.c_str());
else
ans = atof(s1.c_str()) / atof(s5.c_str());
}
else
{
if (s2 == "+")
ans = atof(s1.c_str()) + atof(s3.c_str());
else if (s2 == "-")
ans = atof(s1.c_str()) - atof(s3.c_str());
else if (s2 == "*")
ans = atof(s1.c_str()) * atof(s3.c_str());
else
ans = atof(s1.c_str()) / atof(s3.c_str());
}
ans = floor(ans * 10) / 10;
cout << fixed << setprecision(1) << ans << endl;
}
return 0;
}
2.字串轉整數或小數,要先轉字元, "c_str()"可以將字串轉字元,但要看情況使用。
例:1111 2222 333
s[ 0 1 2 ]
s[0][1] = 1 這時有[][]就不能用s[0][1].c_str() 要不然會錯喔!
注意:可以為小數,運算要正確。
#include<iostream>
#include<string>
#include<cmath>
#include<cstdlib>
#include<iomanip>
using namespace std;
int main()
{
double ans;
string s1, s2, s3, s4, s5;
while (cin >> s1 >> s2 >> s3 >> s4 >> s5)
{
ans = 0;
if (s1 == "x")
{
if (s2 == "+")
ans = atof(s5.c_str()) - atof(s3.c_str());
else if (s2 == "-")
ans = atof(s5.c_str()) + atof(s3.c_str());
else if (s2 == "*")
ans = atof(s5.c_str()) / atof(s3.c_str());
else
ans = atof(s5.c_str()) * atof(s3.c_str());
}
else if (s3 == "x")
{
if (s2 == "+")
ans = atof(s5.c_str()) - atof(s1.c_str());
else if (s2 == "-")
ans = atof(s1.c_str()) - atof(s5.c_str());
else if (s2 == "*")
ans = atof(s5.c_str()) / atof(s1.c_str());
else
ans = atof(s1.c_str()) / atof(s5.c_str());
}
else
{
if (s2 == "+")
ans = atof(s1.c_str()) + atof(s3.c_str());
else if (s2 == "-")
ans = atof(s1.c_str()) - atof(s3.c_str());
else if (s2 == "*")
ans = atof(s1.c_str()) * atof(s3.c_str());
else
ans = atof(s1.c_str()) / atof(s3.c_str());
}
ans = floor(ans * 10) / 10;
cout << fixed << setprecision(1) << ans << endl;
}
return 0;
}
itsa66 1過半元素
#include<iostream>
#include<string>
#include<sstream>
using namespace std;
int main()
{
int arr[30];
int N, count, a;
string str;
while (getline(cin, str))
{
a = 0;
N = 0;
stringstream ss(str);
while (ss >> arr[N])
N++;
N--;
for (int i = 0; i < N; i++)
{
count = 0;
for (int j = 0; j < N; j++)
{
if (arr[i] == arr[j])
count++;
}
if (count > N / 2)
{
a = 1;
cout << arr[i] << endl;
break;
}
}
if (count <= N / 2 && a == 0)
cout << "NO" << endl;
}
return 0;
}
#include<string>
#include<sstream>
using namespace std;
int main()
{
int arr[30];
int N, count, a;
string str;
while (getline(cin, str))
{
a = 0;
N = 0;
stringstream ss(str);
while (ss >> arr[N])
N++;
N--;
for (int i = 0; i < N; i++)
{
count = 0;
for (int j = 0; j < N; j++)
{
if (arr[i] == arr[j])
count++;
}
if (count > N / 2)
{
a = 1;
cout << arr[i] << endl;
break;
}
}
if (count <= N / 2 && a == 0)
cout << "NO" << endl;
}
return 0;
}
2018年9月8日 星期六
itsa [C_AR030-中]文字頻率分析
註: tUp英文大寫次數 tLow英文小寫次數 tw字次數
#include<iostream>
#include<string>
#include<sstream>
using namespace std;
int main()
{
int c, w, count = 0, x = 0, y = 0, z = 0, g = 0, a = 0, b = 0, check = 0;
int tUp[26] = { 0 }, tLow[26] = { 0 }, tw[100] = { 0 };
string prefix, suffix, s, str[100], pre[100], suf[100], wo[100];
cin >> prefix;
cin >> suffix;
cin >> c;
cin >> w;
getline(cin, s);
getline(cin, s);
stringstream ss(s);
while (ss >> str[x])
x++;
for (int i = 0; i < x; i++)
{
check = 0;
count = 0;
if (str[i].length() >= prefix.length())
{
for (int j = 0; j < prefix.length(); j++)
{
if (str[i][j] == prefix[j])
count++;
else
break;
}
if (count == prefix.length())
{
for (int k = 0; k < y; k++)
if (pre[k].compare(str[i]) == 0)
check = 1;
if (check == 0)
pre[y++] = str[i];
}
}
}
for (int i = 0; i < x; i++)
{
a = 0;
count = 0;
check = 0;
if (str[i].length() >= suffix.length())
{
for (int j = str[i].length() - suffix.length(); j < str[i].length(); j++)
{
if (str[i][j] == suffix[a++])
count++;
else
break;
}
if (count == suffix.length())
{
for (int k = 0; k < z; k++)
if (suf[k].compare(str[i]) == 0)
check = 1;
if (check == 0)
suf[z++] = str[i];
}
}
}
for (int i = 0; i < s.length(); i++)
{
for (int j = 0; j < s.length(); j++)
{
if (s[i] == s[j])
{
if (s[i] >= 97 && s[i] <= 122)
tLow[s[i] - 'a']++;
else if (s[i] >= 65 && s[i] <= 90)
tUp[s[i] - 'A']++;
s[j] = ' ';
}
}
}
for (int i = 0; i < x; i++)
{
b = 0;
check = 0;
for (int j = 0; j < x; j++)
{
count = 0;
if (str[i].length() == str[j].length())
{
for (int k = 0; k < str[i].length(); k++)
{
if (str[i][k] == str[j][k])
count++;
else
break;
}
}
if (count == str[i].length())
b++;
}
if (b >= w)
{
for (int k = 0; k < g; k++)
if (wo[k].compare(str[i]) == 0)
check = 1;
if (check == 0)
{
wo[g] = str[i];
tw[g] = b;
g++;
}
}
}
for (int i = 0; i < g - 1; i++)
{
for (int j = i + 1; j < g; j++)
{
if (wo[i].compare(wo[j]) == 1)
{
string tmp = wo[i];
wo[i] = wo[j];
wo[j] = tmp;
int temp = tw[i];
tw[i] = tw[j];
tw[j] = temp;
}
}
}
cout << "prefix of " << prefix << ":" << endl;
for (int i = 0; i < y; i++)
cout << pre[i] << endl;
cout << "suffix of " << suffix << ":" << endl;
for (int i = 0; i < z; i++)
cout << suf[i] << endl;
cout << "character frequency over " << c << ":" << endl;
for (int i = 0; i < 26; i++)
{
if (tUp[i] >= c)
cout << (char)(i + 'A') << ',' << tUp[i] << endl;
}
for (int i = 0; i < 26; i++)
{
if (tLow[i] >= c)
cout << (char)(i + 'a') << ',' << tLow[i] << endl;
}
cout << "word frequency over " << w << ":" << endl;
for (int i = 0; i < g; i++)
cout << wo[i] << ',' << tw[i] << endl;
return 0;
}
#include<iostream>
#include<string>
#include<sstream>
using namespace std;
int main()
{
int c, w, count = 0, x = 0, y = 0, z = 0, g = 0, a = 0, b = 0, check = 0;
int tUp[26] = { 0 }, tLow[26] = { 0 }, tw[100] = { 0 };
string prefix, suffix, s, str[100], pre[100], suf[100], wo[100];
cin >> prefix;
cin >> suffix;
cin >> c;
cin >> w;
getline(cin, s);
getline(cin, s);
stringstream ss(s);
while (ss >> str[x])
x++;
for (int i = 0; i < x; i++)
{
check = 0;
count = 0;
if (str[i].length() >= prefix.length())
{
for (int j = 0; j < prefix.length(); j++)
{
if (str[i][j] == prefix[j])
count++;
else
break;
}
if (count == prefix.length())
{
for (int k = 0; k < y; k++)
if (pre[k].compare(str[i]) == 0)
check = 1;
if (check == 0)
pre[y++] = str[i];
}
}
}
for (int i = 0; i < x; i++)
{
a = 0;
count = 0;
check = 0;
if (str[i].length() >= suffix.length())
{
for (int j = str[i].length() - suffix.length(); j < str[i].length(); j++)
{
if (str[i][j] == suffix[a++])
count++;
else
break;
}
if (count == suffix.length())
{
for (int k = 0; k < z; k++)
if (suf[k].compare(str[i]) == 0)
check = 1;
if (check == 0)
suf[z++] = str[i];
}
}
}
for (int i = 0; i < s.length(); i++)
{
for (int j = 0; j < s.length(); j++)
{
if (s[i] == s[j])
{
if (s[i] >= 97 && s[i] <= 122)
tLow[s[i] - 'a']++;
else if (s[i] >= 65 && s[i] <= 90)
tUp[s[i] - 'A']++;
s[j] = ' ';
}
}
}
for (int i = 0; i < x; i++)
{
b = 0;
check = 0;
for (int j = 0; j < x; j++)
{
count = 0;
if (str[i].length() == str[j].length())
{
for (int k = 0; k < str[i].length(); k++)
{
if (str[i][k] == str[j][k])
count++;
else
break;
}
}
if (count == str[i].length())
b++;
}
if (b >= w)
{
for (int k = 0; k < g; k++)
if (wo[k].compare(str[i]) == 0)
check = 1;
if (check == 0)
{
wo[g] = str[i];
tw[g] = b;
g++;
}
}
}
for (int i = 0; i < g - 1; i++)
{
for (int j = i + 1; j < g; j++)
{
if (wo[i].compare(wo[j]) == 1)
{
string tmp = wo[i];
wo[i] = wo[j];
wo[j] = tmp;
int temp = tw[i];
tw[i] = tw[j];
tw[j] = temp;
}
}
}
cout << "prefix of " << prefix << ":" << endl;
for (int i = 0; i < y; i++)
cout << pre[i] << endl;
cout << "suffix of " << suffix << ":" << endl;
for (int i = 0; i < z; i++)
cout << suf[i] << endl;
cout << "character frequency over " << c << ":" << endl;
for (int i = 0; i < 26; i++)
{
if (tUp[i] >= c)
cout << (char)(i + 'A') << ',' << tUp[i] << endl;
}
for (int i = 0; i < 26; i++)
{
if (tLow[i] >= c)
cout << (char)(i + 'a') << ',' << tLow[i] << endl;
}
cout << "word frequency over " << w << ":" << endl;
for (int i = 0; i < g; i++)
cout << wo[i] << ',' << tw[i] << endl;
return 0;
}
2018年9月2日 星期日
itsa [C_AR029-難]文字編碼
#include<iostream>
#include<string>
using namespace std;
int main()
{
int m = 0, x = 0, check = 0;
char arr[16][16];
for (int i = 0; i < 16; i++)
for (int j = 0; j < 16; j++)
arr[i][j] = ' ';
string s;
getline(cin, s);
for (int i = 1; i * i <= s.length(); i++)
m = i;
if (m * m < s.length())
m++;
for (int i = 0; i < m; i++)
{
for (int j = 0; j < m; j++)
{
arr[i][j] = s[x++];
if (x == s.length())
break;
}
if (x == s.length())
break;
}
for (int i = 0; i < m; i++)
for (int j = 0; j < m; j++)
cout << arr[j][i];
cout << endl;
return 0;
}
#include<string>
using namespace std;
int main()
{
int m = 0, x = 0, check = 0;
char arr[16][16];
for (int i = 0; i < 16; i++)
for (int j = 0; j < 16; j++)
arr[i][j] = ' ';
string s;
getline(cin, s);
for (int i = 1; i * i <= s.length(); i++)
m = i;
if (m * m < s.length())
m++;
for (int i = 0; i < m; i++)
{
for (int j = 0; j < m; j++)
{
arr[i][j] = s[x++];
if (x == s.length())
break;
}
if (x == s.length())
break;
}
for (int i = 0; i < m; i++)
for (int j = 0; j < m; j++)
cout << arr[j][i];
cout << endl;
return 0;
}
訂閱:
文章 (Atom)