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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.  
  6.    int n,i,j;
  7.    int arr[100005];
  8.    scanf("%d" ,&n);
  9.    for(i=0;i<n;i++)
  10.     scanf("%d" ,&arr[i]);
  11.    int k=2*n-2;
  12.    int count=0;
  13.    for(i=1;i<=k;i++)
  14.    {
  15.    	int flg=1;
  16.    	   for(j=0;j<n;j++)
  17.    	   {
  18.    	   	 if(arr[j]==i&&flg)
  19.    	   	   {
  20.    	   	   	  flg=0;
  21.    	   	   	  continue;
  22.    	   	   }
  23.    	   	  if(arr[j]==i&&(!flg))
  24.    	   	    {
  25.    	   	    	arr[j]+=1;
  26.    	            count++;}}
  27.    	   }
  28.    printf("%d" ,count);
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 3740KB
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stdin
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stdout
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Standard output is empty
https://ideone.com/FYuMg2
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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