Submission #160542

#	Time	Username	Problem	Language	Result	Execution time	Memory
160542		FiloSanza	Sorting (IOI15_sorting)	C++14	20 / 100	11 ms	464 KiB

sorting

#include "sorting.h"
#include <bits/stdc++.h>

using namespace std;

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
	swap(S[X[0]], S[Y[0]]);

	int cont = 0;
	for(int i=0; i<N; i++){
		int idx = min_element(S+i, S+N) - S;
		if(idx == i) continue;
		swap(S[i], S[idx]);
		P[cont] = i;
		Q[cont++] = idx; 
		swap(S[X[i]], S[Y[i]]);	
	}

	if(S[0] > S[1]){
		P[cont] = 0;
		Q[cont++] = 1; 
	}

	return cont;
}

Compilation message (stderr)

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:11:35: warning: conversion to 'int' from 'long int' may alter its value [-Wconversion]
   int idx = min_element(S+i, S+N) - S;
             ~~~~~~~~~~~~~~~~~~~~~~^~~
sorting.cpp:6:39: warning: unused parameter 'M' [-Wunused-parameter]
 int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
                                       ^

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