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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int reverse(int x)
  4. {
  5.   int rem=0,revno=0;
  6.   while(x!=0)
  7.   {
  8.     rem=x%10;
  9.     revno=revno*10+rem;
  10.     x/=10;
  11.   }
  12.   return revno;
  13. }
  14. int main()
  15. {
  16.   int i,j,k,n,a;
  17.   int count=0;
  18.   cin>>i>>j>>k;
  19.   //int b=abs(j-i);
  20.   //int arr[b+1];
  21.  for(a=i;a<=j;a++)
  22.  {
  23.    int z=abs(a-reverse(a));
  24.    if(z%k==0)
  25.    {
  26.       count++;
  27.    }
  28.    else continue;
  29.    z=0;
  30.  }
  31.  cout<<count<<endl;
  32. }
Success #stdin #stdout 0s 4504KB
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stdin
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20 23 6
stdout
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2
https://ideone.com/dADNqS
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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