Submission #292771

#	Time	Username	Problem	Language	Result	Execution time	Memory
292771		AaronNaidu	Gondola (IOI14_gondola)	C++14	20 / 100	13 ms	768 KiB

gondola

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

bool done[300000];

int valid(int n, int inputSeq[]) {
    int minIndex = -1;
    int minAns = 1000000000;
    int maxIndex = -1;
    int maxAns = 0;
    int outOfRange = 0;
    for (int i = 0; i < n; i++)
    {
        if (done[inputSeq[i]])
        {
            return 0;
        }
        done[inputSeq[i]] = true;
        if (inputSeq[i] < minAns)
        {
            minIndex = i;
            minAns = inputSeq[i];
        }
        if (inputSeq[i] > maxAns)
        {
            maxIndex = i;
            maxAns = inputSeq[i];
        }
        if (inputSeq[i] > n)
        {
            outOfRange++;
        }
    }
    if (n + outOfRange != maxAns)
    {
        return 0;
    }
    if (maxAns > n)
    {
        return 1;
    }
    for (int i = 0; i < n; i++)
    {
        if (inputSeq[i] <= n)
        {
            int diff = i - minIndex;
            if (diff <= 0)
            {
                diff += n;
            }
            int expectedAns = minAns + diff;
            if (expectedAns <= 0)
            {
                expectedAns += n;
            }
            if (expectedAns%n != inputSeq[i]%n)
            {
                return 0;
            }
        }
    }
    
    return 1;
}

int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
    return 0;
}

int countReplacement(int n, int inputSeq[]) {
    return 0;
}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:10:9: warning: variable 'maxIndex' set but not used [-Wunused-but-set-variable]
   10 |     int maxIndex = -1;
      |         ^~~~~~~~

• 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