Submission #441262

#	Time	Username	Problem	Language	Result	Execution time	Memory
441262		Christopher_Rdz	Gondola (IOI14_gondola)	C++14	20 / 100	10 ms	716 KiB

gondola

#include "gondola.h"
#include <assert.h>
#include <stdio.h>
#include <bits/stdc++.h>

using namespace std;

bool visited[250001];

struct dato{
    int valor;
    int pos;
};

bool operator <(const dato &a, const dato &b){
    return a.valor < b.valor;
}

dato gon[250001];

int valid(int n, int inputSeq[])
{
    int index, aux, valor = 1;
    for (int i = 0; i < n; i++){
        aux = inputSeq[i];
        if (aux <= n){
            index = i;
            valor = aux;
            break;
        }
    }
    for (int i = index; i < n + index; i++){
        if (visited[ inputSeq[i % n] ]) return 0;
        visited[ inputSeq[i % n] ] = true;
        if (inputSeq[i % n] > n){
            valor = (valor % n) + 1;
            continue;
        }
        if (inputSeq[i % n] != valor) return 0;
        valor = (valor % n) + 1;
    }
    return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    int index, aux, valor = 1, L = 0, g = n + 1;
    for (int i = 0; i < n; i++){
        aux = gondolaSeq[i];
        if (aux <= n){
            index = i;
            valor = aux;
            break;
        }
    }
    int pos = 0;
    for (int i = index; i < n + index; i++){
        aux = gondolaSeq[i % n];
        if (aux > n ){
            gon[pos].valor = aux;
            gon[pos].pos = valor;
            valor = (valor % n) + 1;
            pos++;
        }
    }
    sort (gon + 0, gon + pos);
    for (int i = 0; i < pos; i++){
        replacementSeq[L] = gon[i].pos;
        L++;
        while (g < gon[i].valor){
            replacementSeq[L] = g;
            g++;
            L++;
        }
        g++;
    }
    return L;
}

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

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

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:32:31: warning: 'index' may be used uninitialized in this function [-Wmaybe-uninitialized]
   32 |     for (int i = index; i < n + index; i++){
      |                             ~~^~~~~~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:59:31: warning: 'index' may be used uninitialized in this function [-Wmaybe-uninitialized]
   59 |     for (int i = index; i < n + index; i++){
      |                             ~~^~~~~~~

• 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