Submission #718203

#	Time	Username	Problem	Language	Result	Execution time	Memory
718203		thimote75	Gondola (IOI14_gondola)	C++14	20 / 100	31 ms	5068 KiB

gondola

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

using namespace std;

int valid(int n, int inputSeq[])
{
  set<int> omega;
  for (int i = 0; i < n; i ++) omega.insert(inputSeq[i]);
  if (omega.size() != n) return 0;

  int jStart = -1;
  for (int i = 0; i < n; i ++) {
    if (inputSeq[i] > n) continue ;

    jStart = i; 
    break;
  }

  if (jStart == -1) return 1;

  int start = jStart - inputSeq[jStart] + 1;
  if (start < 0) start += n;

  for (int mu = 0; mu < n; mu ++) {
    int nu = (start + mu);
    if (nu >= n) nu -= n;

    if (inputSeq[nu] > n) continue ;
    if (inputSeq[nu] != mu + 1)
      return 0;
  }

  return 1;
}

//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  return -2;
}

//----------------------

int countReplacement(int n, int inputSeq[])
{
  return -3;
}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:10:20: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   10 |   if (omega.size() != n) return 0;
      |       ~~~~~~~~~~~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 0 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10