### 123Y456 · 发布于 2025-10-01 · 浏览 267 回复 0 include using namespace std; int main() { int n, s, f, m; cin >> n; s = n / 3600; f = n % 3600 / 60; m = n % 60; cout << s << ':' << f << ':' << m; return 0; }