Submission #13215

#	Time	Username	Problem	Language	Result	Execution time	Memory
13215		dohyun0324	Schools (IZhO13_school)	C++98	5 / 100	124 ms	6636 KiB

school

#include<stdio.h>
#include<queue>
#include<algorithm>
using namespace std;
int sum,dap,n,m,s,p,ch[300010],p2;
priority_queue<int>q;
priority_queue<int>q2;
struct data{
    int x,y;
    bool operator<(const data&r)const{
        return x>r.x;
    }
}a[300010];
int main()
{
    int i;
    scanf("%d %d %d",&n,&m,&s);
    for(i=1;i<=n;i++)
    {
        scanf("%d %d",&a[i].x,&a[i].y);
    }
    sort(a+1,a+n+1); p=m+s;
    for(i=n;i>=p;i--)
    {
        q2.push(a[i].y);
    }
    for(i=1;i<=m;i++) q.push(a[i].y-a[i].x), sum+=a[i].x;
    p2=m+1;
    for(i=1;i<=s;i++)
    {
        if(q.size()==0 || q.top()+a[p2].x<q2.top())
        {
            sum+=q2.top(); p--;
            q2.pop(); q2.push(a[p].y);
        }
        else
        {
            sum+=q.top()+a[p2].x; p2++;
            q.pop();
        }
        if(dap<sum) dap=sum;
    }
    printf("%d",dap);
    return 0;
}

• Subtask 1: 5 / 100