补全9月11日至13日课评:为13名学生创建请假文档,为5个班级创建总结文档

This commit is contained in:
chengzi
2026-09-13 19:34:34 +08:00
parent 167d832353
commit 21001eccf5
1322 changed files with 37510 additions and 4136 deletions

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#include <bits/stdc++.h>
#define endl '\n'
using namespace std;
int n, m;
int arr[100100];
int dp[100100];
int x, y;
int main(){
cin >> n >> m;
for(int i = 1; i <= n; i++){
cin >> arr[i];
dp[i] = dp[i - 1] + arr[i];
}
for(int i = 1; i <= m; i++){
cin >> x >> y;
cout << dp[y] - dp[x - 1] << endl;
}
return 0;
}