C++实现：按时间累计能量直到满足阈值

```cpp #include <iostream> using namespace std; int main() { int n; cin >> n; int total = 0, t = 0; while (total < n) { t++; total += t * (t + 1) / 2; } cout << t << endl; return 0; } ``` ######[AI问答 | 94点数解答 | 2026-06-30 17:39:44]