Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
124030 李俊博 13判断质数 C++ Compile Error 0 MS 0 KB 900 2025-07-10 16:06:29

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int main(){ /** long long a,b,c; cin>>a>>b>>c; if(a%c==0 && b%c==0){ cout<<a*b/(c*c); }else{ cout<<-1; } double h=100; for(int i=1;i<=10;i++){ h = h/2; } printf("%.6lf",h); int a=1; int n; cin>>n; for(int i=0;i<n-1;i++){ a=a+i; } cout<<a<<endl; int a=10000; int n; cin>>n; if(n%2==0){ a=a-(n/2-1)*2; } else{ a=a-(n/2)*1; } cout<<a; **/ int n; int s=0; cin>>n; for(int i=2;i<n;i++){ if(n%i==0){ flag = 0; break; } } if(flag==1) cout<<"yes"; else cout<<"no"; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:45:4: error: 'flag' was not declared in this scope
    flag = 0;
    ^
Main.cc:49:5: error: 'flag' was not declared in this scope
  if(flag==1) cout<<"yes";
     ^
Main.cc:41:6: warning: unused variable 's' [-Wunused-variable]
  int s=0;
      ^