Submission #759701

#	Time	Username	Problem	Language	Result	Execution time	Memory
759701		raysh07	Gondola (IOI14_gondola)	C++17	20 / 100	25 ms	5660 KiB

gondola

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

int valid(int n, int a[])
{
    set <int> st;
    for (int i = 0; i < n; i++) st.insert(a[i]);
    
    if (st.size() != n) return 0;
    
    vector <int> b;
    for (int i = 0; i < n; i++){
        if (a[i] <= n) b.push_back(a[i]);
    }
    
    for (int i = 1; i < b.size(); i++){
        int need = b[i - 1] + 1;
        if (need > n) need = 1;
        
        if (b[i] != need) 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:10:19: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   10 |     if (st.size() != n) return 0;
      |         ~~~~~~~~~~^~~~
gondola.cpp:17:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for (int i = 1; i < b.size(); 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