Submission #1027449

#	Time	Username	Problem	Language	Result	Execution time	Memory
1027449		dozer	Gondola (IOI14_gondola)	C++14	20 / 100	26 ms	5860 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
#define sp " "
#define endl "\n"
#define pb push_back
#define pii pair<int, int>
#define st first
#define nd second
#define mid (l + r) / 2
#define LL node * 2
#define RR node * 2 + 1
#define fileio() freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define ll long long
#define MAXN 200005


const int modulo = 1e9+7;
const ll INF = 2e18 + 7;


int valid(int n, int inputSeq[])
{
    set<int> s;
    vector<int> v(n, 0);
    for (int i = 0; i < n; i++){
        int curr = inputSeq[i];
        if (curr <= n) v[i] = curr;
        s.insert(curr);
    }

    if (s.size() < n) return 0;
    int todo = -1;
    for (int i = 0; i < n; i++)
        if (v[i] != 0) todo = i;
    if (todo == -1) return 1;
    vector<int> res(n, 0);
    int it = todo, val = v[todo];
    do{
        res[it] = val;
        val++, it++;
        it %= n;
        val = (val - 1) % n + 1;
    }while(it != todo);

    for (int i = 0; i < n; i++)
        if (v[i] != 0 && res[i] != v[i]) 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:33:18: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |     if (s.size() < n) return 0;
      |         ~~~~~~~~~^~~

• 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