Submission #238432

#	Time	Username	Problem	Language	Result	Execution time	Memory
238432		lakshith_	Gondola (IOI14_gondola)	C++14	55 / 100	56 ms	4728 KiB

gondola

#include <bits/stdc++.h>
#include "gondola.h"
 
using namespace std;
 
set<int> visited;
 
int valid(int n,int input[]){
  for(int i=0;i<n;i++)
    if(visited.find(input[i])!=visited.end())
      return 0;
    else
      visited.insert(input[i]);
  int start = -1;
  for(int i=0;i<n;i++)if(input[i]<=n){
    start = i;
    break;
  }
  if(start==-1)return 1;
  int next = input[start];
  int pos = start;
  for(int i=0;i<n;i++){
    if(input[pos]<=n&&input[pos]!=next)return 0;
    pos++;
    if(pos>=n)pos=0;
    next++;
    if(next>n)next=1;
  }
  return 1;
}
pair<int,int> x[200002];
 
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
  int start = 0;
  for(int i=0;i<n;i++){
    if(gondolaSeq[i]<=n){start = i;break;}
  }
  int next = gondolaSeq[start]<=n?gondolaSeq[start]:1;
  vector<pair<int,int>> vec;
  int pos = start;
  for(int i=0;i<n;i++){
    x[i] = {gondolaSeq[pos],next};
	pos++;
    next++;
    if(next>n)next = 1;
    if(pos>=n)pos=0;
  }
  sort(x,x+n);
  int last = n;
  int l = 0;
  for(int i=0;i<n;i++){
    while(x[i].first != x[i].second){
      replacementSeq[l++] = x[i].second;
      x[i].second = ++last;
    }
  }
  return l;
}
 
int countReplacement(int n, int inputSeq[]){
  return 0;
}

• 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