제출 #248803

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
248803		legend	Arranging Shoes (IOI19_shoes)	C++17	10 / 100	1 ms	256 KiB

shoes

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

long long count_swaps(std::vector<int> s) {
	long long ans = 0;
	for(int i = 0;i<s.size();i++){
        if(!s[i]) continue;
        for(int j = i+1;j<s.size();j++){
            if(s[j] == -s[i]){
                ans+=(j-i-1);
                if(s[i]>s[j]) ans++;
                s[j] = 0;
                break;
            }
        }

	}
//	system("pause");
	return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:7:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0;i<s.size();i++){
                ~^~~~~~~~~
shoes.cpp:9:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = i+1;j<s.size();j++){
                         ~^~~~~~~~~

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