Submission #831747

#	Time	Username	Problem	Language	Result	Execution time	Memory
831747		jlallas384	Teams (IOI15_teams)	C++17	34 / 100	4040 ms	38392 KiB

teams

#include <bits/stdc++.h>
#include "teams.h"
using namespace std;
vector<pair<int,int>> seg;

void init(int N, int A[], int B[]) {
	for(int i = 0; i < N; i++){
		seg.emplace_back(A[i], B[i]);
	}
	sort(seg.begin(), seg.end());
}

int can(int m, int K[]) {
	vector<int> k;
	for(int i = 0; i < m; i++){
		k.push_back(K[i]);
	}
	sort(k.begin(), k.end());
	multiset<int> ms;
	int ptr = 0;
	for(int x: k){
		while(ptr < seg.size() && seg[ptr].first <= x){
			ms.insert(seg[ptr++].second);
		}
		while(ms.size() && *ms.begin() < x){
			ms.erase(ms.find(*ms.begin()));
		}
		if(ms.size() < x) return 0;
		for(int it = 0; it < x; it++){
			ms.erase(ms.find(*ms.begin()));
		}
	}
	return 1;
}

Compilation message (stderr)

teams.cpp: In function 'int can(int, int*)':
teams.cpp:22:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   while(ptr < seg.size() && seg[ptr].first <= x){
      |         ~~~~^~~~~~~~~~~~
teams.cpp:28:16: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |   if(ms.size() < x) return 0;
      |      ~~~~~~~~~~^~~

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