제출 #573061

#제출 시각아이디문제언어결과실행 시간메모리
573061sff_userArranging Shoes (IOI19_shoes)C++17
0 / 100
444 ms1856 KiB
#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;
// }

컴파일 시 표준 에러 (stderr) 메시지

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++){
      |                   ~~^~~~~~~~~~
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