Submission #819909

#	Time	Username	Problem	Language	Result	Execution time	Memory
819909		Abrar_Al_Samit	Carnival Tickets (IOI20_tickets)	C++17	0 / 100	1 ms	340 KiB

tickets

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

const int nax = 1500;

int n, m;
int cnt[nax][2];
vector<int>pz[nax], po[nax];
int ptr[nax][2];

long long find_maximum(int k, vector<vector<int>> x) {
	n = x.size();
	m = x[0].size();

	for(int i=0; i<n; ++i) {
		for(int j=0; j<m; ++j) {
			if(x[i][j]==1) {
				po[i].push_back(j);
			} else {
				pz[i].push_back(j);
			}
		}
	}

	vector<vector<int>>ans(n, vector<int>(m, -1));

	for(int i=0; i<n; ++i) {
		for(int j=0; j<k; ++j) {
			if(cnt[j][0] < n/2 && pz[i].size()>ptr[i][0]) {
				++cnt[j][0];
				ans[i][pz[i][ptr[i][0]]] = j;
				++ptr[i][0];
			} else if(cnt[j][1] < n/2 && po[i].size()>ptr[i][1]) {
				++cnt[j][1];
				ans[i][po[i][ptr[i][1]]] = j;
				++ptr[i][1];
			} else if(pz[i].size()>ptr[i][0]) {
				++cnt[j][0];
				ans[i][pz[i][ptr[i][0]]] = j;
				++ptr[i][0];
			} else {
				++cnt[j][1];
				ans[i][po[i][ptr[i][1]]] = j;
				++ptr[i][1];
			}
		}
	}
	int mx_ans = 0;
	for(int i=0; i<k; ++i) {
		mx_ans += min(cnt[i][0], cnt[i][1]);
	}


	allocate_tickets(ans);
	return mx_ans;
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:30:38: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |    if(cnt[j][0] < n/2 && pz[i].size()>ptr[i][0]) {
      |                          ~~~~~~~~~~~~^~~~~~~~~~
tickets.cpp:34:45: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   34 |    } else if(cnt[j][1] < n/2 && po[i].size()>ptr[i][1]) {
      |                                 ~~~~~~~~~~~~^~~~~~~~~~
tickets.cpp:38:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   38 |    } else if(pz[i].size()>ptr[i][0]) {
      |              ~~~~~~~~~~~~^~~~~~~~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 16
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 12
• Subtask 6: 0 / 23
• Subtask 7: 0 / 10