oj.uz

Submission #426831

# Submission time Handle Problem Language Result Execution time Memory
426831 2021-06-14T10:16:33 Z ollel Sorting (IOI15_sorting) C++17
0 / 100
 1 ms 332 KB 
#include <bits/stdc++.h>
#include <iostream>
using namespace std;

#define rep(i,a,b) for(int i = a; i < b; i++)
#define pb push_back
#define lso(x) x&(-x)

typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;

int findSwapPairs(int n, int S[], int M, int X[], int Y[], int P[], int Q[]) {
  vi to(n), from(n);

  rep(i,0,n) to[i] = S[i];
  rep(i,0,n) from[S[i]] = i;

  vector<bool> s(n, false);
  int r = 0;
  rep(i,0,n) {
    if (s[i]) continue;

    int x = i;
    while (!s[x]) {
      X[r] = x;
      Y[r] = to[x];
      x = to[x];
      s[x] = true;
      r++;
    }
  }
  return r;
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:27:18: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
   27 |       Y[r] = to[x];
      |                  ^
sorting.cpp:28:15: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
   28 |       x = to[x];
      |               ^
sorting.cpp:13:39: warning: unused parameter 'M' [-Wunused-parameter]
   13 | int findSwapPairs(int n, int S[], int M, int X[], int Y[], int P[], int Q[]) {
      |                                   ~~~~^
sorting.cpp:13:64: warning: unused parameter 'P' [-Wunused-parameter]
   13 | int findSwapPairs(int n, int S[], int M, int X[], int Y[], int P[], int Q[]) {
      |                                                            ~~~~^~~
sorting.cpp:13:73: warning: unused parameter 'Q' [-Wunused-parameter]
   13 | int findSwapPairs(int n, int S[], int M, int X[], int Y[], int P[], int Q[]) {
      |                                                                     ~~~~^~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -