• Bio

    //小根堆

    priority_queue<long long,vector < long long>,greater< long long>>a;

    //最大公约数、最小公倍数

    #define ll long long
    ll gcd(ll a,ll b){ return b==0?a:gcd(b,a%b); }//最大公约数

    ll lcm(ll a,ll b){ return a/gcd(a,b)*b; }//最小公倍数

    //迭代器

    set < int > ::iterator it;

    for(it=a.begin();it!=a.end();it++){

    	cout<<*it<<' ';
    
    }
    

    //偷懒大法

    #define ll long long

    #define re return

    #define ma main

    #define fo for

    #define ii int

    #define ci cin

    #include<bits/stdc++.h>

    using namespace std;

    int main(){

    return 0;
    

    } 地图

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