Submission #8534458


Source Code Expand

#include<bits/stdc++.h>

using namespace std;

int main(){
  int N;
  cin >> N;
  
  vector<int> P(N);
  for(int i = 0; i < N; i++) cin >> P[i];
  
  int cnt = 0;
  int num = N;
  for(int i = N - 1; i >= 0; i--){
    if(P[i] == num) num--;
    else cnt++;
  }
  
  int cnt2 = 0;
  num = 1;
  for(int i = 0; i < N; i++){
    if(P[i] == num) num++;
    else cnt2++;
  }
  
  cout << min(cnt, cnt2) << endl;
  
  return 0;
}

Submission Info

Submission Time
Task B - Backfront
User shauuebbit
Language C++14 (GCC 5.4.1)
Score 0
Code Size 449 Byte
Status WA
Exec Time 69 ms
Memory 1152 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 500
Status
AC × 3
AC × 13
WA × 15
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt WA 60 ms 1024 KB
02.txt WA 60 ms 1024 KB
03.txt WA 60 ms 1024 KB
04.txt WA 60 ms 1024 KB
05.txt WA 59 ms 1024 KB
06.txt WA 69 ms 1024 KB
07.txt AC 60 ms 1024 KB
08.txt AC 60 ms 1024 KB
09.txt AC 61 ms 1024 KB
10.txt AC 60 ms 1024 KB
11.txt AC 61 ms 1024 KB
12.txt AC 61 ms 1024 KB
13.txt AC 61 ms 1024 KB
14.txt WA 60 ms 1024 KB
15.txt WA 60 ms 1024 KB
16.txt WA 60 ms 1024 KB
17.txt WA 60 ms 1152 KB
18.txt WA 60 ms 1024 KB
19.txt WA 60 ms 1024 KB
20.txt WA 60 ms 1024 KB
21.txt WA 60 ms 1024 KB
22.txt WA 60 ms 1024 KB
23.txt AC 1 ms 256 KB
24.txt AC 1 ms 256 KB
25.txt AC 1 ms 256 KB
s1.txt AC 1 ms 256 KB
s2.txt AC 1 ms 256 KB
s3.txt AC 1 ms 256 KB