Submission #787915

#	Time	Username	Problem	Language	Result	Execution time	Memory
787915		Minindu206	Gondola (IOI14_gondola)	C++14	25 / 100	39 ms	4556 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
int valid(int n, int inputSeq[])
{
  int ind = -1;
  map<int, int> mp;
  for (int i = 0; i < n; i++)
  {
    if (mp[inputSeq[i]] == 1)
      return 0;
    if (inputSeq[i] <= n)
      ind = i;
    mp[inputSeq[i]] = 1;
  }
  if (ind == -1)
    return 1;
  for (int i = 0; i < n; i++)
  {
    if (inputSeq[i] > n)
      continue;
    if (((inputSeq[ind] - inputSeq[i] + n) % n) != ((ind - i + n) % n))
      return 0;
  }
  return 1;
}

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  int ind = -1, mx = 0, l;
  map<int, int> mp;
  for (int i = 0; i < n; i++)
  {
    if (gondolaSeq[i] <= n)
      ind = i;
    mx = max(gondolaSeq[i], mx);
  }
  l = mx - n;
  vector<pair<int, int>> reps;
  if (ind == -1)
  {
    for (int i = 1; i < n + 1; i++)
      reps.push_back({gondolaSeq[i - 1], i});
  }
  else
  {
    for (int i = 0; i < n; i++)
    {
      if (gondolaSeq[i] <= n)
        continue;
      int dis = 0;
      if(i > ind)
        dis = i - ind;
      else
        dis = n - ind + i;
      int val = gondolaSeq[ind] + dis;
      if(val > n)
        val = val % n;
      reps.push_back({gondolaSeq[i], val});
    }
  }
  sort(reps.begin(), reps.begin());
  int i = 0, j = n + 1, k = 0;
  for(int k=0;k<reps.size();k++)
  {
    pair<int, int> cur = reps[k];
    replacementSeq[i] = cur.second;
    i++;
    while(j < cur.first)
    {
      replacementSeq[i] = j;
      j++;
      i++;
    }
    j++;
  }
  return i;
}

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

Compilation message (stderr)

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:64:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |   for(int k=0;k<reps.size();k++)
      |               ~^~~~~~~~~~~~
gondola.cpp:30:25: warning: variable 'l' set but not used [-Wunused-but-set-variable]
   30 |   int ind = -1, mx = 0, l;
      |                         ^
gondola.cpp:63:25: warning: unused variable 'k' [-Wunused-variable]
   63 |   int i = 0, j = n + 1, k = 0;
      |                         ^

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 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