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  1. #include <stdio.h>
  2.  
  3. int digit(char ch)
  4. {
  5. 	return ch - (ch<='9' ? '0': ch<='Z' ? 'A'-10 : 'a'-10);
  6. }
  7.  
  8. int main(void)
  9. {
  10. 	const char *in= "4A75737420612074657374";
  11. 	unsigned q;
  12.  
  13. 	for (q=0; in[q]; q+=2)
  14. 	  	printf("%c", (digit(in[q])<<4) | digit(in[q+1]));
  15.  
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0s 2168KB
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stdin
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Standard input is empty
stdout
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Just a test
https://ideone.com/oKqhFg
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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