C++两两分组求较小值之和

```cpp #include <iostream> #include <vector> using namespace std; int main() { int n; cin >> n; vector<int> arr(n); for (int i = 0; i < n; i++) cin >> arr[i]; int sum = 0; for (int i = 0; i < n; i += 2) sum += min(arr[i], arr[i + 1]); cout << sum; return 0; } ``` ######[AI问答 | 118点数解答 | 2026-06-21 20:03:58]