Submission #409076

#	Time	Username	Problem	Language	Result	Execution time	Memory
409076		pliam	Gondola (IOI14_gondola)	C++14	55 / 100	25 ms	2368 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
//valid
vector<pair<int,int>> input;//(val,id)
vector<pair<int,int>> rep;//(val,id)

int valid(int n, int inputSeq[])
{
  for(int i=0;i<n;i++){
    input.push_back({inputSeq[i],i});
  }
  sort(input.begin(),input.end());
  int prev=-1;
  for(int i=0;i<n;i++){
    if(input[i].first==prev) return 0;
    prev=input[i].first;
  }
  int prev_pos=-1;
  for(int i=0;i<n&&input[i].first<=n;i++){
    if((i!=0)&&((input[i].first-prev)!=((input[i].second-prev_pos+n)%n))){
      return 0;
    }
    prev=input[i].first;
    prev_pos=input[i].second;
  }
  return 1;
}

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

int mod1(int x,int m){
  x%=m;
  if(x==0) x=m;
  return x;
}

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  int extra=0;
  for(int i=0;i<n;i++){
    if(gondolaSeq[i]>n) rep.push_back({gondolaSeq[i],i});
    else extra=(gondolaSeq[i]-i+n)%n;
  }
  for(auto& p:rep){
    p.second+=extra;
    p.second=mod1(p.second,n);
  }
  sort(rep.begin(),rep.end());
  int l=0;
  int prev=n;
  for(auto p:rep){
    replacementSeq[l]=p.second;
    l++;
    for(int i=prev+1;i<p.first;i++){
      replacementSeq[l]=i;
      l++;
    }
    prev=p.first;
  }
  return l;
}

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

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

• 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