Submission #961205

#	Time	Username	Problem	Language	Result	Execution time	Memory
961205		IUA_Hasin	Gondola (IOI14_gondola)	C++17	55 / 100	15 ms	9828 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
 
#define endl                                "\n"
#define yeap                                cout<<"YES"<<endl
#define nope                                cout<<"NO"<<endl
#define ll                                  long long

using namespace std;

const ll N = 1e6;
ll vis[N];
ll vec[N];

int valid(int n, int inputSeq[])
{
  ll mn = 300000;
  ll mx = -1;
  ll mnind = 0;
  ll status = 1;
  for(int i=0; i<n; i++){
    ll a = inputSeq[i];
    if(a<mn){
      mn = a;
      mnind = i;
    }
    mx = max(mx, a);
    vis[a]++;
    if(vis[a]>1){
      status = -1;
    }
  }

  if((mx-mn)>=n){
    status = -1;
  }

  if(status==-1){
    return 0;
  } else {
    if(mn>=n){
      return 1;
    } else {
      ll cnt = 0;
      ll ind = mnind;
      ll temp = mn;
      while(cnt<n){
        ll temp1 = ind%n;
        if(inputSeq[temp1]<=n){
          if(inputSeq[temp1]!=temp){
            status = -1;
            break;
          }
          cnt++;
          ind++;
          temp++;
        }
      }
      if(status==-1){
        return 0;
      } else {
        return 1;
      }
    }
  }



}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{ 
  ll mx = -1;
  ll mn = 300000;
  for(int i=0; i<n; i++){
    ll a = gondolaSeq[i];
    vis[a] = 1;
    mx = max(mx, a);
    mn = min(mn, a);
  }
  // cout << mx << " " << mn << endl;
  // return mx;
  if(mx==n){
    return 0;
  } else {
    if(mn>n){
      for(int i=0; i<n; i++){
        ll a = gondolaSeq[i];
        vec[a] = i+1;
        // cout << a << " " << vec[a] << endl;
      }
      ll cnt = 0;
      ll cnt1 = n;
      for(int i=n+1; i<=mx; i++){
        ll b = vec[i];
        if(vis[i]==1){
          replacementSeq[cnt] = b;
          cnt++;
          cnt1++;
          while(cnt1<i){
            replacementSeq[cnt] = cnt1;
            cnt++;
            cnt1++;
          }
        }
      }
      return cnt;
    } else {
      ll mnind;
      for(int i=0; i<n; i++){
        if(gondolaSeq[i]==mn){
          mnind = i;
          break;
        }
      }
      ll cntt = 0;
      ll temp1 = mn;
      ll temp2 = mnind;
      while(cntt<n){
        ll a = temp1%n;
        ll b = temp2%n;
        ll c = gondolaSeq[b];
        if(a==0){
          a = n;
        }
        vec[c] = a;
        // cout << a << " " << b << " " << vec[b+1] << endl;
        temp1++;
        temp2++;
        cntt++;
      }
      ll cnt = 0;
      ll cnt1 = n;
      for(int i=n+1; i<=mx; i++){
        ll b = vec[i];
        if(vis[i]==1){
          replacementSeq[cnt] = b;
          cnt++;
          cnt1++;
          while(cnt1<i){
            replacementSeq[cnt] = cnt1;
            cnt++;
            cnt1++;
          }
        }
      }
      return cnt;
    }
  }
}

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

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

Compilation message (stderr)

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:111:10: warning: 'mnind' may be used uninitialized in this function [-Wmaybe-uninitialized]
  111 |       ll mnind;
      |          ^~~~~

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