Submission #1735165

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Source Code Expand

import java.util.*;

class Main{            
     
   public static void main(String[] args){
       Scanner sc = new Scanner(System.in);  
       
       int N = sc.nextInt();
       int count = 0;
       
       int a[] = new int[N+1];
       
       for(int i = 1;i <= N;i++){
           a[i] = sc.nextInt();
       }
       
       for(int i = 1;i <= N;i++){
           if(i == a[i]){
               count++;
               i++;
           }           
       }
       
       System.out.println(count);
    
       
       
   }
}
               
        
        
        
        

Submission Info

Judge Result