Submission #411061

#	Time	Username	Problem	Language	Result	Execution time	Memory
411061		eagle30	Carnival Tickets (IOI20_tickets)	C++17	11 / 100	2 ms	716 KiB

tickets

#include "tickets.h"
#include<bits/stdc++.h>
using namespace std;
long long find_maximum(int k, vector<vector<int> > x) {
	long long n = x.size();
	long long m = x[0].size();
	vector<vector<int> > answer;
	answer.assign(n, vector<int>());
	vector<long long> vi;
	for (long long i = 0; i < n; i++) {
		answer[i].push_back(0);
		vi.push_back(x[i][0]);
	}
	sort(vi.begin(), vi.end());
	long long hi=vi.size(), tot=0;
	hi/=2;
	for(long long i=0; i<vi.size(); i++){
		tot+=abs(vi[i]-vi[hi]);
	}
	allocate_tickets(answer);
	return tot;
}

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:17:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  for(long long i=0; i<vi.size(); i++){
      |                     ~^~~~~~~~~~
tickets.cpp:6:12: warning: unused variable 'm' [-Wunused-variable]
    6 |  long long m = x[0].size();
      |            ^

• Subtask 1: 11 / 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