Submission #727226

#	Time	Username	Problem	Language	Result	Execution time	Memory
727226		vjudge1	Teams (IOI15_teams)	C++11	34 / 100	4041 ms	20708 KiB

teams

#include "teams.h"

#include <bits/stdc++.h>
using namespace std;

const int MAXN = 5e5;

int n;
int a[MAXN], b[MAXN], ord[MAXN];

void init(int N, int A[], int B[]) {
        n = N;
        for (int i = 0; i < n; i++) a[i] = A[i], b[i] = B[i];
        iota(ord, ord + n, 0);
        sort(ord, ord + n, [](int i, int j) {
                return a[i] < a[j];
        });
}

int can(int M, int K[]) {
        priority_queue<int> pq;
        int j = 0;
        sort(K, K + M);
        for (int i = 0; i < M; i++) {
                while (j < n && a[ord[j]] <= K[i]) pq.emplace(-b[ord[j++]]);
                while (pq.size() && -pq.top() < K[i]) pq.pop();
                if (pq.size() < K[i]) return 0;
                while (K[i]--) pq.pop();
        }
        return 1;
}

Compilation message (stderr)

teams.cpp: In function 'int can(int, int*)':
teams.cpp:27:31: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   27 |                 if (pq.size() < K[i]) return 0;
      |                     ~~~~~~~~~~^~~~~~

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