Submission #385902

#	Time	Username	Problem	Language	Result	Execution time	Memory
385902		aarr	Gondola (IOI14_gondola)	C++14	10 / 100	16 ms	2404 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;
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) {
			vec.push_back({a[i], i});
		}
	}
	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;
}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:15:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |  for (int i = 1; i < vec.size(); i++) {
      |                  ~~^~~~~~~~~~~~
gondola.cpp:14:6: warning: unused variable 'cnt' [-Wunused-variable]
   14 |  int cnt = 0;
      |      ^~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 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