Submission #573061

#	Time	Username	Problem	Language	Result	Execution time	Memory
573061		sff_user	Arranging Shoes (IOI19_shoes)	C++17	0 / 100	444 ms	1856 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>

#define vi vector<int>
#define ll long long

using namespace std;

ll count_swaps(vector<int> s){
	int n = s.size() / 2;
	ll ans = 0;
	for(int i = 0 ; i < n ; i++){
		for(int j = n ; j < s.size() ; j++){
			if(s[i] + s[j] == 0){
				ans += j-i-1;
			}
			s.erase(s.begin()+j);
		}
	}
	return ans;
}

// int main(){
// 	int p=1,n=-1;
// 	cout << count_swaps({n,n,n,n,n,n,n,p,p,p,p,p,p,p}) << endl;
// }

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:13:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |   for(int j = n ; j < s.size() ; j++){
      |                   ~~^~~~~~~~~~

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