Submission #543356

#	Time	Username	Problem	Language	Result	Execution time	Memory
543356		cig32	Sorting (IOI15_sorting)	C++17	0 / 100	2 ms	340 KiB

sorting

#ifdef ONLINE_JUDGE
#include "sorting.h"
#endif
#include "bits/stdc++.h"
using namespace std;
int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]);

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
  bool sorted =1 ;
  for(int i=1; i<N; i++) {
    sorted &= (S[i] >= S[i-1]);
  }
  if(sorted) return 0;
  int T[N];
  for(int i=0; i<N; i++) T[i] = S[i];
  sort(T, T + N);
  for(int i=0; i<M; i++) {
    P[i] = 0, Q[i] = 0;
    if(X[i] > Y[i]) swap(X[i], Y[i]);
    if(S[X[i]] > S[Y[i]]) {
      swap(S[X[i]], S[Y[i]]);
      for(int j=0; j<N; j++) {
        if(S[j] != T[j]) {
          for(int k=0; k<N; k++) {
            if(S[k] == T[j]) {
              P[i] = j, Q[i] = k;
              swap(S[j], S[k]);
              break;
            }
          }
          break;
        }
      }
    }
    else {
      P[i] = X[i], Q[i] = Y[i];
    }
  }
  return M;
}

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