제출 #385912

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
385912		aarr	곤돌라 (IOI14_gondola)	C++14	20 / 100	41 ms	5732 KiB

gondola

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

const int N = 100 * 1000 + 5;

int valid(int n, int a[]) {
	vector <pair <int, int> > vec;
	set <int> s;
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) {
			vec.push_back({a[i], i});
		}
		s.insert(a[i]);
	}
	if (s.size() != n) {
		return 0;
	}
	int cnt = 0;
	for (int i = 1; i < vec.size(); i++) {
		if (vec[i].second - vec[i - 1].second != (vec[i].first - vec[i - 1].first + n) % n) {
			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:16:15: 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) {
      |      ~~~~~~~~~^~~~
gondola.cpp:20:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |  for (int i = 1; i < vec.size(); i++) {
      |                  ~~^~~~~~~~~~~~
gondola.cpp:19:6: warning: unused variable 'cnt' [-Wunused-variable]
   19 |  int cnt = 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