Submission #68797

#	Time	Username	Problem	Language	Result	Execution time	Memory
68797		Vahan	Gondola (IOI14_gondola)	C++17	10 / 100	19 ms	5600 KiB

gondola

#include "gondola.h"
#include<vector>
using namespace std;

int valid(int n, int inputSeq[])
{
    int x[200000];
    vector<int> v;
    for(int i=0;i<n;i++)
    {
        if(inputSeq[i]<=n)
        {
            v.push_back(inputSeq[i]);
            x[inputSeq[i]]=i;
        }
    }
    int t=0;
    for(int i=1;i<v.size();i++)
    {
        if(v[i-1]>v[i])
            t++;
    }
    if(t>=2)
        return 0;
    if(t==1 && v.back()>v[0])
        return 0;
    t=0;
    for(int i=1;i<v.size();i++)
    {
        if(v[i-1]<v[i])
        {
            if(v[i]-v[i-1]!=x[v[i]]-x[v[i-1]])
            {
                t=1;
                break;
            }
        }
        if(v[i-1]>v[i])
        {
            if(n-(v[i-1]-v[i])!=x[v[i]]-x[v[i-1]])
            {
                t=1;
                break;
            }
        }
    }
    if(t==1)
        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:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=1;i<v.size();i++)
                 ~^~~~~~~~~
gondola.cpp:28:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=1;i<v.size();i++)
                 ~^~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 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