SGU 114 Telecasting station(中位数)

真心没啥好说的了,求个中位数吧

PS:吐槽下,后面的.00000是故意恶心人的么?

//SGU 114 Telecasting station 
//中位数
//by night_watcher

#include<iostream>
#include<algorithm>
using namespace std;

#define N 15001

int n;
struct NODE{
    int x,p;
}node[N];

bool cmp(const NODE a,const NODE b){
    return a.x<b.x;
}

int main(){
    int i,j,p=0,sum=0;
    cin>>n;
    for(i=0;i<n;i++){
        cin>>node[i].x>>node[i].p;
        p+=node[i].p;
    }
    sort(node,node+n,cmp);
    ++p/=2;
    for(i=0;;i++){
        sum+=node[i].p;
        if(sum>=p) break;
    }
    cout<<node[i].x;
    cout<<".00000"<<endl;
    return 0;
}

你可能感兴趣的:(SGU 114 Telecasting station(中位数))