编译器名: MinGW GCC 4.8.1 32-bit Debug
用的是devc++6.7.5, 编译开了std=c++11, -Wall未警告
priority_queue加上结构体重载运算符和O2会乱掉
只有本地会错误,洛谷IDE不会出错
#include<bits/stdc++.h>
#define int long long
#define endl '\n'
#pragma GCC optimize(2)
using namespace std;
inline int read(){
int x=0,f=1;char ch=getchar();
while(!isdigit(ch)){if(ch=='-')f=-1;ch=getchar();}
while(isdigit(ch)){x=(x<<1)+(x<<3)+ch-48;ch=getchar();}
return x*f;
}const int N=1e5+10,p=1e9;
struct edge{
int to,v;
bool operator <(const edge x)const
{
// if(v!=x.v) 不加上注释会乱掉
return v>x.v;
// return to>x.to;
}
};
priority_queue<edge> q;
signed main()
{
int n=5;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
q.push((edge){i,j});
while(!q.empty())
{
cout<<q.top().to<<" "<<q.top().v<<endl;
q.pop();
}
return 0;
}