제출 #1018540

#제출 시각아이디문제언어결과실행 시간메모리
1018540huutuan정렬하기 (IOI15_sorting)C++14
0 / 100
4 ms604 KiB
#include "sorting.h" #include <bits/stdc++.h> using namespace std; int a[200010]; int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) { iota(a, a+N, 0); // for (int i=M-1; i>=0; --i) swap(a[X[i]], a[Y[i]]); for (int i=0; i<M; ++i){ P[i]=Q[i]=0; // swap(a[X[i]], a[Y[i]]); swap(S[X[i]], S[Y[i]]); for (int j=0; j<N; ++j) if (a[j]!=S[j]){ int k=find(S, S+N, a[j])-S; P[i]=j; Q[i]=k; break; } swap(S[P[i]], S[Q[i]]); } for (int j=0; j<N; ++j) assert(S[j]==j); return M; }

컴파일 시 표준 에러 (stderr) 메시지

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:17:34: warning: conversion from 'long int' to 'int' may change value [-Wconversion]
   17 |          int k=find(S, S+N, a[j])-S;
      |                ~~~~~~~~~~~~~~~~~~^~
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