Submission #431891

#	Time	Username	Problem	Language	Result	Execution time	Memory
431891		JUANDI321	Arranging Shoes (IOI19_shoes)	C++17	15 / 100	39 ms	3124 KiB

shoes

#include "shoes.h"
#include <vector>
#include <deque>
#include <iostream>
using namespace std;
long long count_swaps(vector<int> s) 
{
	long long count = 0; 
	for(int i = 0; i<s.size()/2; i++)count+=i;
	return count;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:9:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for(int i = 0; i<s.size()/2; i++)count+=i;
      |                 ~^~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15