제출 #314604

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
314604		talant117408	Sorting (IOI15_sorting)	C++17	0 / 100	82 ms	632 KiB

sorting

#include "sorting.h"
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair <ll, ll> pii;
 
#define precision(n) fixed << setprecision(n)
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define mp make_pair
#define eps (double)1e-9
#define PI 2*acos(0.0)
#define endl "\n"
#define sz(v) int((v).size())
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define do_not_disturb ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
 
inline bool isvowel(char ch){
	ch = tolower(ch);
	return (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u');
}
 
inline bool isprime(int n){
	if(n < 2 || (n%2 == 0 && n != 2)) return false;
	for(int i = 3; i*i <= n; i++)
		if(n%i == 0) return false;
	return true;
}
 
int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
    
    int i, j;
    int tmpS[M], tmpos[M];
    
    for(i = 0; i < M; i++){
        vector <pii> sws;
        
        for(j = 0; j < N; j++)
            tmpS[j] = S[j];
        for(j = 0; j <= i; j++)
            swap(tmpS[X[j]], tmpS[Y[j]]);
        for(j = 0; j < N; j++)
            tmpos[tmpS[j]] = j;
        
        for(j = 0; j < N; j++){
            if(tmpos[j] == j) continue;
            sws.pb(mp(tmpS[j], tmpS[tmpos[j]]));
            swap(tmpS[j], tmpS[tmpos[j]]);
            swap(tmpos[tmpS[j]], tmpos[tmpS[tmpos[j]]]);
        }
        if(sz(sws) <= i+1){
            vector <pii> res1;
            
            for(j = 0; j < N; j++){
                tmpS[j] = S[j];
                tmpos[S[j]] = j;
            }
            for(j = 0; j < sz(sws); j++){
                swap(tmpS[X[j]], tmpS[Y[j]]);
                swap(tmpos[tmpS[X[j]]], tmpos[tmpS[Y[j]]]);
                res1.pb(mp(tmpos[sws[j].first], tmpos[sws[j].second]));
                swap(tmpS[tmpos[sws[j].first]], tmpS[tmpos[sws[j].second]]);
                swap(tmpos[tmpS[tmpos[sws[j].first]]], tmpos[tmpS[tmpos[sws[j].second]]]);
            }
            
            while(sz(res1) <= i){
                res1.pb(mp(0, 0));
            }
            for(j = 0; j < sz(res1); j++){
                P[j] = res1[j].first;
                Q[j] = res1[j].second;
            }
            return sz(res1);
        }
    }
    
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

sorting.cpp: In function 'bool isvowel(char)':
sorting.cpp:23:14: warning: conversion from 'int' to 'char' may change value [-Wconversion]
   23 |  ch = tolower(ch);
      |       ~~~~~~~^~~~
sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:74:32: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   74 |                 P[j] = res1[j].first;
sorting.cpp:75:32: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   75 |                 Q[j] = res1[j].second;

• Subtask 1: 0 / 8
• Subtask 2: 0 / 12
• Subtask 3: 0 / 16
• Subtask 4: 0 / 18
• Subtask 5: 0 / 20
• Subtask 6: 0 / 26