Submission #134751

#	Time	Username	Problem	Language	Result	Execution time	Memory
134751		Boxworld	Teams (IOI15_teams)	C++14	34 / 100	4030 ms	12520 KiB

teams

#include "teams.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> P;
struct S{int l,r;}a[500100];
priority_queue<P,vector<P>,greater<P> >Q;
int n;
void init(int N, int A[], int B[]){
    n=N;
    for (int i=0;i<N;i++)a[i].l=A[i],a[i].r=B[i];
}
int can(int M, int K[]){
    while(!Q.empty())Q.pop();
    sort(K,K+M);
    for (int i=0;i<n;i++){
		if (a[i].l<K[0]){
			if(K[0]<=a[i].r)Q.push(make_pair(K[0],a[i].r));
		}else Q.push(make_pair(a[i].l,a[i].r));
	}
    for (int i=0;i<M;i++){
        if (Q.empty())return 0;
        if (Q.size()<K[i])return 0;
        for (int j=0;j<K[i];j++){
            P x=Q.top();
            Q.pop();
            if (x.first<=K[i]&&K[i]<=x.second)continue;
            else return 0;
        }
        if (i==M-1)return 1;
        if (Q.empty())return 0;
        while(Q.top().first<K[i+1]){
            P x=Q.top();
            Q.pop();
            if (K[i+1]<=x.second)Q.push(make_pair(K[i+1],x.second));
            if (Q.empty())return 0;
        }
    }
	return 1;
}

Compilation message (stderr)

teams.cpp: In function 'int can(int, int*)':
teams.cpp:22:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (Q.size()<K[i])return 0;
             ~~~~~~~~^~~~~

• Subtask 1: 21 / 21
• Subtask 2: 13 / 13
• Subtask 3: 0 / 43
• Subtask 4: 0 / 23