itsa [C_GD03-易]線段切割

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#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; }