Submission #589271

#	Time	Username	Problem	Language	Result	Execution time	Memory
589271		yutabi	Gondola (IOI14_gondola)	C++14	20 / 100	31 ms	4620 KiB

gondola

#include "gondola.h"

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



int valid(int n, int s[])
{
    set <int> st;

    int diff=-1;

    bool flag=0;

    for(int i=0;i<n;i++)
    {
        st.insert(s[i]);

        if(s[i]<=n)
        {
            int num=(s[i]+n-i)%n;

            if(diff!=-1 && diff!=num)
            {
                flag=1;
            }

            diff=num;
        }
    }

    if(st.size()!=n)
    {
        flag=1;
    }

    if(flag)
    {
        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:33:17: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |     if(st.size()!=n)
      |        ~~~~~~~~~^~~

• 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