Submission #127705

#	Time	Username	Problem	Language	Result	Execution time	Memory
127705		StevenH	Gondola (IOI14_gondola)	C++14	20 / 100	16 ms	1772 KiB

gondola

#include "gondola.h"
#include <vector>
using namespace std;
int tag[10000000];
int a[2*100000+5];
int valid(int n, int inputSeq[])
{
	for(int i=0;i<n;i++)
		a[i]=a[n+i]=inputSeq[i];
	for(int i=0;i<n;i++)
	{
		if(!tag[a[i]])tag[a[i]]=1;
		else return 0;
	}
	int t=0;
	for(int i=0;i<n;i++)
		if(a[i]<=n)t=1;
	if(t==0)return 1;
	
	int res;t=0;
	for(int i=0;i<2*n;i++)
		if(a[i]>=1 && a[i]<=n && i+1>=a[i])
			{res=i;t=1;break;}
	
	for(int i=res;i<=res+n-a[res];i++)
		if(a[i]>=1 && a[i]<=n)
			if(a[i]!=i-res+a[res])return 0;
	return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    return -2;
}

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

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

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:20:6: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int res;t=0;
      ^~~

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