Submission #921738

#	Time	Username	Problem	Language	Result	Execution time	Memory
921738		coding_snorlax	Sorting (IOI15_sorting)	C++14	0 / 100	3 ms	348 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[]) {
    for(int i=2;i<N;i++){
        int tmp = S[X[i]];
        S[X[i]]=S[Y[i]];
        S[Y[i]]=tmp;
        for(int j=0;j<N;j++){
            if(S[j]==i){
                P[i]=j;
                Q[i]=i;
                S[j]=S[i];
                S[i]=i;
                break;
            }
        }
        // check already_sorted
        int flag = 1;
        for(int j=0;j<N;j++){
            if(S[j]!=j) flag =0;
        }
        if(flag){
            return i-1;
        }
    }
    P[N-2]=0;Q[N-2]=1;
	return N-1;
}

Compilation message (stderr)

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:4:39: warning: unused parameter 'M' [-Wunused-parameter]
    4 | int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
      |                                   ~~~~^

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