Submission #819696

#	Time	Username	Problem	Language	Result	Execution time	Memory
819696		kebine	Gondola (IOI14_gondola)	C++17	55 / 100	34 ms	5224 KiB

gondola

#include <bits/stdc++.h>
#include "gondola.h"
#define ll long long
#define mod 1000000007
using namespace std;

int n;
int inputSeq[1000];

int replacement(int n, int inputSeq[], int replacementSeq[]){
  int mn = INT_MAX;
  int id;
  for(int i = 0 ; i < n ; i++){
    if( mn > inputSeq[i] ){
      mn = inputSeq[i];
      id = i;
    }
  }
  vector<int> v;
  mn--;
  id = (id-mn)%n+n;
  id %= n;
  for(int i =  id ; i < n ; i++) v.push_back(inputSeq[i]);
  for(int i = 0 ; i < id ; i++) v.push_back(inputSeq[i]);
  priority_queue<pair<int,int>> pq;
  for(int i = 0  ; i < n ; i++){
    pq.push({-v[i],i+1});
  }
  int mx = *max_element(v.begin(),v.end());
  if( mx == n ) return 0;
  int cur = n+1;
  int ti = 0;
  while(!pq.empty()){
    int fufu = pq.top().second;
    while(cur <= -pq.top().first){
      replacementSeq[ti] = fufu;
      fufu = cur;
      ti++;
      cur++;
    }
    pq.pop();
  }
  //~ for(int i = 0; i < mx-n ; i++){
    //~ cout<<replacementSeq[i]<<" ";
  //~ }
  //~ cout<<"\n";
  return mx-n;
}

int countReplacement(int n, int inputSeq[]){
  return 0;
}

int valid(int n,int inputSeq[]){
  int mn = INT_MAX;
  int id;
  map<int,int> cnt;
  for(int i = 0 ; i < n ; i++){
    cnt[inputSeq[i]]++;
    if( cnt[inputSeq[i]] > 1 ) return 0;
  }
  for(int i = 0 ; i < n ; i++){
    if( mn > inputSeq[i] ){
      mn = inputSeq[i];
      id = i;
    }
  }
  if( mn > n ) return 1;
  vector<int> v;
  mn--;
  id = (id-mn)%n+n;
  id %= n;
  for(int i =  id ; i < n ; i++) v.push_back(inputSeq[i]);
  for(int i = 0 ; i < id ; i++) v.push_back(inputSeq[i]);
  for(int i = 0 ; i < n ; i++){
    if( v[i] <= n && v[i] != i+1 ) return 0;
  }
  return 1;
}

//~ int main(){
  //~ ios_base::sync_with_stdio(false);
  //~ cin.tie(0);
  //~ cout.tie(0);
  //~ cin>>n;
  //~ for(int i = 0 ; i < n ; i++){
    //~ cin>>inputSeq[i];
  //~ }
  //~ int replacementSeq[1000];
  //~ cout<<replacement(n,inputSeq,replacementSeq)<<"\n";
//~ }

Compilation message (stderr)

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:21:11: warning: 'id' may be used uninitialized in this function [-Wmaybe-uninitialized]
   21 |   id = (id-mn)%n+n;
      |        ~~~^~~~
gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:71:11: warning: 'id' may be used uninitialized in this function [-Wmaybe-uninitialized]
   71 |   id = (id-mn)%n+n;
      |        ~~~^~~~

• 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