Submission #259149

#	Time^UTC-0	Username	Problem	Language	Result	Execution time	Memory
259149	2020-08-07 08:55:07	IOrtroiii	Sorting (IOI15_sorting)	C++14	Compilation error	0 ms	0 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

sorting

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#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[]) {
   auto solve = [&](int mid) -> bool {
      vector<int> perm(N);
      for (int i = 0; i < N; ++i) {
         perm[i] = S[i];
      }
      for (int i = 0; i < mid; ++i) swap(perm[X[i]], perm[Y[i]]);
      vector<int> invp(N);
      for (int i = 0; i < N; ++i) invp[perm[i]] = i;
      int ans = 0;
      for (int i = 0; i < N; ++i) {
         if (perm[i] == i) continue;
         int j = invp[i];
         P[ans] = perm[i];
         Q[ans++] = perm[j];
         swap(perm[i], perm[j]);
         invp[perm[i]] = i;
         invp[perm[j]] = j;
      }
      for (int i = ans; i < mid; ++i) P[i] = Q[i] = 0;
      return ans <= mid;
   };
   int low = 0, high = N;
   while (low < high) {
 
 
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Compilation message (stderr)

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:46:29: error: expected ']' before ';' token
       invp[perm[P[i]] = P[i];
                             ^
sorting.cpp:47:29: error: expected ']' before ';' token
       invp[perm[Q[i]] = Q[i];
                             ^
sorting.cpp:7:39: warning: unused parameter 'M' [-Wunused-parameter]
 int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
                                       ^