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Aug 25th, 2019
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C 0.29 KB | None | 0 0
  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main()
  5. {
  6.   int n;
  7.   scanf("%d", &n);
  8.  
  9.   int i;
  10.   int resul = 0;
  11.   for(i = 0; n >= 10; i++)
  12.   {
  13.     int a = n % 10;
  14.     n = n / 10;
  15.     resul += (a * pow(2, i));
  16.   }
  17.   resul += n * pow(2, i);
  18.   printf("%d\n", resul);
  19.  
  20.   return 0;
  21. }
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