Submission #165380

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
165380	2019-11-26 16:54:00	cfalas	Gondola (IOI14_gondola)	C++14	100 / 100	97 ms	8124 KiB

gondola

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#include "gondola.h"
#include<bits/stdc++.h>
using namespace std;
#define MOD 1000000009
#define ll long long
int valid(int n, int a[]){
  map<int, bool> used;
  for(int i=0;i<n;i++){
    if(used[a[i]]) return 0;
    used[a[i]] = true;
  }
  int s = 0;
  for(int i=0;i<n;i++){
    if(a[i]<=n){
      s = i;
      break;
    }
  }
  for(int i=0;i<n;i++){
    if(a[i]<=n && (a[i]+(s-i) - 1 + n)%n + 1 != a[s]) return 0; }
  return 1;
}
//----------------------
int replacement(int n, int a[], int ans[]){
  int apos=-1, av;
 
 
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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