Submission #292336

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
292336	2020-09-06 20:46:08	VodkaInTheJar	Gondola (IOI14_gondola)	C++14	100 / 100	65 ms	6008 KiB

gondola

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#include <bits/stdc++.h>
#include "gondola.h"
 
using namespace std;
const int maxn = 1e5 + 3; 
int valid(int n, int a[])
{
  set <int> s;
  for (int i = 0; i < n; i++)
  s.insert(a[i]);
  
  if ((int)s.size() < n)
  return 0;
  
  vector <int> v;
  for (int i = 0; i < n; i++)
  if (a[i] <= n)
  v.push_back(i);
  
  for (int i = 1; i < (int)v.size(); i++)
  {
    int val = a[v[0]] + v[i] - v[0];
    if (val > n)
    val -= n; 
    
    if (val != a[v[i]])
    return 0; 
  }
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 20 / 20
• Subtask 7: 5 / 5
• Subtask 8: 15 / 15
• Subtask 9: 15 / 15
• Subtask 10: 10 / 10