Submission #259933

#	Time	Username	Problem	Language	Result	Execution time	Memory
259933		srj	Gondola (IOI14_gondola)	C++14	55 / 100	96 ms	9976 KiB

gondola

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

int valid(int n, int inputSeq[])
{
	map<int,int> pos;
  for(int i =0;i<n;i++){
  		if(pos.find(inputSeq[i])!=pos.end())
  			return 0;	
  			pos[inputSeq[i]] = i;
  }
  int sortSeq[n];
  memcpy(sortSeq,inputSeq,sizeof(sortSeq));
  sort(sortSeq,sortSeq+n);
  if(sortSeq[0]>n)
  	return 1;
  int smallval = sortSeq[0];
  int cur = pos[sortSeq[0]];
  for(int i =0;i<n;i++){
  	if(inputSeq[(cur+i)%n]!=smallval+i && inputSeq[(cur+i)%n]<=n){
  		// cout << smallval << endl;
  		// cout << i << endl;
  		return 0;
  	}
  }
  return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
	map<int,int> pos;
  for(int i =0;i<n;i++){
  		if(pos.find(gondolaSeq[i])!=pos.end())
  			return 0;	
  			pos[gondolaSeq[i]] = i;
  }
  int sortSeq[n];
  map<int,int> what;
  memcpy(sortSeq,gondolaSeq,sizeof(sortSeq));
  sort(sortSeq,sortSeq+n);
  int pos1 = 0;
  if(sortSeq[0]<=n){
  	pos1 = (n+pos[sortSeq[0]]-sortSeq[0]+1)%n;
  }
  what[pos1] = 1;
  pos[1] = pos1;
  for(int i =2;i<=n;i++){
  	pos[i] = (n+pos1+i-1)%n;
  	what[pos[i]] = i;
  }
  int nxt = n+1;
  int ans = sortSeq[n-1] - nxt+1;
  int j =0;
  for(int i =0;i<n;i++){
  	if(sortSeq[i]>n){
  		int where = pos[sortSeq[i]];
  		int prev = what[where];
  		while(prev!=sortSeq[i]){
  			replacementSeq[j] = prev;
  			prev=nxt;
  			nxt++;
  			j++;
  		}
  		what[where] = prev;	
  	}
  }
  return ans;
}

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

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

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:9:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(pos.find(inputSeq[i])!=pos.end())
     ^~
gondola.cpp:11:6: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
      pos[inputSeq[i]] = i;
      ^~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:36:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(pos.find(gondolaSeq[i])!=pos.end())
     ^~
gondola.cpp:38:6: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
      pos[gondolaSeq[i]] = i;
      ^~~

• 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