제출 #413940

#제출 시각아이디문제언어결과실행 시간메모리
413940dxz05곤돌라 (IOI14_gondola)C++14
20 / 100
39 ms6140 KiB
#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 3e5 + 2e2;

int a[MAXN];

int valid(int n, int inputSeq[]){
    for (int i = 0; i < 3 * n; i++) a[i] = inputSeq[i % n];

    set<int> s;
    for (int i = 0; i < n; i++) s.insert(a[i]);

    if (s.size() != n) return 0;

    int ind = -1;
    for (int i = n; i < 2 * n; i++){
        if (a[i] <= n){
            ind = i;
            break;
        }
    }

    if (ind == -1) return 1;

    for (int i = ind - a[ind] + 1; i <= ind - a[ind] + n; i++){
        if (a[i] > n) continue;
        if (a[i] - a[ind] != i - ind) return 0;
    }

    return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    return -2;
}

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

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

컴파일 시 표준 에러 (stderr) 메시지

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:16:18: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   16 |     if (s.size() != n) return 0;
      |         ~~~~~~~~~^~~~
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