제출 #831876

#제출 시각아이디문제언어결과실행 시간메모리
831876ttamxSorting (IOI15_sorting)C++14
0 / 100
2 ms468 KiB
#include "sorting.h"
#include<bits/stdc++.h>
 
using namespace std;
 
int n,m;
vector<int> s;
 
int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
	n=N,m=M;
	for(int i=0;i<n;i++)s.emplace_back(S[i]);
	for(int i=0;i<m;i++)swap(s[X[i]],s[Y[i]]);
	vector<pair<int,int>> ans;
	for(int i=0;i<n;i++){
		while(s[i]!=i){
			ans.emplace_back(i,s[i]);
			swap(s[i],s[s[i]]);
		}
	}
	while(ans.size()<m)ans.emplace_back(0,0);
	for(int i=0;i<m;i++)tie(P[i],Q[i])=ans[i];
	return m;
}

컴파일 시 표준 에러 (stderr) 메시지

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:20:18: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |  while(ans.size()<m)ans.emplace_back(0,0);
      |        ~~~~~~~~~~^~
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