Submission #731239

#	Time	Username	Problem	Language	Result	Execution time	Memory
731239		lucri	Gondola (IOI14_gondola)	C++17	20 / 100	14 ms	1032 KiB

gondola

#include <stdio.h>
#include <assert.h>
#include "gondola.h"
int poz[100010];
bool e[250010];
int valid(int n, int inputSeq[])
{
    for(int i=0;i<=n;++i)
    {
        if(e[inputSeq[i]])
            return 0;
        e[inputSeq[i]]=true;
        if(1<=inputSeq[i]&&inputSeq[i]<=n)
            poz[inputSeq[i]]=i+1;
    }
    int dif=-1;
    for(int i=1;i<=n;++i)
        if(poz[i])
        {
            int val;
            if(i<=poz[i])
                val=poz[i]-i;
            else
                val=poz[i]+n-i;
            if(dif==-1)
                dif=val;
            else if(dif!=val)
                return 0;
        }
    return 1;
}

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

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

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

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

• 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