72785

Run ID	作者	问题	语言	测评结果	Time	Memory	代码长度	提交时间
72785	杨莹斌	质数的和与积	C++	Compile Error	0 MS	0 KB	355	2024-05-12 18:09:13

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int prime(int x){ for(int i = 2;i < x;i++){ if(x % i == 0) return 0; } } return 1; } int main(){ int n; cin >> n; int mx = -2e9; for(int i = 2;i < n-1;i++){ if(prime(i) == 1&&prime(n-i) == 1) if(i*(n-i)>mx){ mx = i*(n-i); } } } cout<<mx; return 0; }

Run Info:

Main.cc:10:2: error: expected unqualified-id before 'return'
  return 1;  
  ^
Main.cc:11:1: error: expected declaration before '}' token
 } 
 ^
Main.cc: In function 'int prime(int)':
Main.cc:9:2: warning: control reaches end of non-void function [-Wreturn-type]
  }
  ^