Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
84147 石晋骁 寻找绝对素数 C++ Compile Error 0 MS 0 KB 505 2024-07-15 11:56:23

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; bool is(int a){ for(int j = 2;j < a;j++){ if(a%j == 0){ return false; } } return true; } int fx(int a){ int m = 0; while(a>0){ m = m*10+a%10; a= a/10; } return m; } int main(){ int m,n,k,flag = 0; cin >> m >> n; for(int i = m;i <= n;i = i+2){ k = fx(i); if(is(i) && is(k)){ if(flag == 0){ cout << i; flag = 1; }else{ cout<< "," << i; } } } cout << sum; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:33:10: error: 'sum' was not declared in this scope
  cout << sum;
          ^