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  1. #include<stdio.h>
  2. #include<string.h>
  3. #include<math.h>
  4.  
  5. int main()
  6. {
  7.     char bin[100];
  8.     unsigned long dec = 0;
  9.     int i = 0;
  10.     int s;
  11.     fgets( bin, sizeof(bin), stdin);
  12.     s = strlen( bin );
  13.     while( s-- ) {
  14.     	if( bin[s] == '0' || bin[s] == '1' ) {
  15.     		dec = dec + pow(2, i++) * (bin[s] - '0');
  16.     	}
  17.     };
  18.     printf("\nDecimal Equivalent of Binary Number: \t %u\n", dec);
  19.     return 0;
  20. }
Success #stdin #stdout 0s 2172KB
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stdin
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1000 0000   0000 0000   0000 0000 0000 0001
stdout
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Decimal Equivalent of Binary Number: 	 2147483649
https://ideone.com/pE8ZLL
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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