Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
136785 鸡哥 数组中元素交换 C++ Compile Error 0 MS 0 KB 247 2025-11-15 15:19:50

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int main(){ int a[101],tem; cin>>n; for(int i = 1;i<=n;i+=1){ cin>>a[i]; } for(int i = 2;i<=n;i+=2){ cin>>a[i]; } tem=a[i]; a[i-1]=a[i]; a[i-1]=tem; cout<<tem; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:5:7: error: 'n' was not declared in this scope
  cin>>n;
       ^
Main.cc:12:8: error: 'i' was not declared in this scope
  tem=a[i];
        ^