题目描述 小姜有 � n 个数字,现在小姜想知道,从l到r这个区间内所有的数字和是多少 输出格式 � m 行,每行一个整数C++
时间: 2024-04-16 13:27:17 浏览: 11
Sure! Here's an example code in C++ that solves the problem:
```cpp
#include <iostream>
#include <vector>
using namespace std;
int main() {
int n, m;
cin >> n >> m;
vector<int> nums(n);
for (int i = 0; i < n; i++) {
cin >> nums[i];
}
for (int i = 0; i < m; i++) {
int l, r;
cin >> l >> r;
int sum = 0;
for (int j = l - 1; j < r; j++) { // assuming 1-based indexing
sum += nums[j];
}
cout << sum << endl;
}
return 0;
}
```
This code takes input for the number of elements `n`, the number of queries `m`, and the `n` numbers. It then calculates the sum of the numbers in each query range `l` to `r` and prints the result.
Please note that this is a basic implementation and may not handle edge cases or optimize for performance.
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