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Nusrat_Ullah

CF 548 Div2 A

Mar 21st, 2019
145
0
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C++ 0.26 KB | None | 0 0
  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main()
  4. {
  5.     char z;
  6.     int t,i,g,re=0;
  7.     scanf("%d ",&t);
  8.     for(g=0;g<t;g++){
  9.         scanf("%c",&z);
  10.         if(((int)z-48)%2==0)for(i=0;i<=g;i++)re++;
  11.     }
  12.     printf("%d\n",re);
  13.     return 0;
  14. }
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