Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
7323 柯宇希 素数对 C++ Compile Error 0 MS 0 KB 660 2025-04-19 15:27:17

Tests(0/0):

Code:

#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; bool Isprime(int x){ if(x<2) return false; bool f=true; for(int i=2;i<=sprt(x);i++){ if(x%i==0){ return false; } } return true; } int main(){ int n; bool f=false; cin>>n; for(int i=1;i<=n-2;i++){ if(Isprime(i)&&Isprime(i+2)) cout<<i<<" "<<i+2<<endl; f=true; } if(f=false)cout<<"No"<<endl; return 0; }

Run Info:

Main.cc: In function 'bool Isprime(int)':
Main.cc:10:26: error: 'sprt' was not declared in this scope
     for(int i=2;i<=sprt(x);i++){
                          ^
Main.cc:9:10: warning: unused variable 'f' [-Wunused-variable]
     bool f=true;
          ^
Main.cc: In function 'int main()':
Main.cc:26:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
     if(f=false)cout<<"No"<<endl;
               ^