课评: 转出学生归档(王子墨/张立坤/黄俊博)+ 周四班级总结 + 新生章梓皓档案 + C++示例代码

This commit is contained in:
chengzi
2026-09-29 22:43:54 +08:00
parent 6f57dfe67e
commit 73cce4c4f5
116 changed files with 6817 additions and 248 deletions

View File

@@ -0,0 +1,19 @@
#include <bits/stdc++.h>
#define endl '\n'
using namespace std;
int n;
int arr[100100];
int main(){
cin >> n;
long long cnt = 1;
for(int i = 1; i <= n; i++){
cnt = cnt * 2;
}
cout << cnt - 1;
return 0;
}