Submission #50545

#	Time	Username	Problem	Language	Result	Execution time	Memory
50545		mirbek01	Gondola (IOI14_gondola)	C++17	25 / 100	31 ms	2144 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;

const int N = 3e5 + 2;

int valid(int n, int inputSeq[])
{
      vector <pair <int, int> > v;
      for(int i = 0; i < n; i ++)
            if(inputSeq[i] <= n)
                  v.push_back({inputSeq[i], i + 1});
      sort(v.begin(), v.end());
      for(int i = 1; i < v.size(); i ++){
            int ab = v[i].first - v[i - 1].first, ds;
            if(v[i].second > v[i - 1].second){
                  ds = v[i].second - v[i - 1].second;
            } else {
                  ds = v[i].second + (n - v[i - 1].second);
            }
            if(ds != ab) return 0;
      }
      sort(inputSeq, inputSeq + n);
      for(int i = 1; i < n; i ++){
            if(inputSeq[i] == inputSeq[i - 1]) return 0;
      }
      return 1;
}

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

int used[N];

int replacement(int n, int gondolaSeq[], int rp[])
{
      int sz = 0, mx = 0;
      for(int i = 0; i < n; i ++){
            used[gondolaSeq[i]] = 1;
            mx = max(mx, gondolaSeq[i]);
      }
      for(int i = 1; i <= mx; i ++){
            if(!used[i]){
                  rp[sz ++] = i;
            }
      }
      return sz;
}

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

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

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:14:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int i = 1; i < v.size(); i ++){
                      ~~^~~~~~~~~~

• 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