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  1. #include <stdio.h>
  2. #include <time.h>
  3. #include <stdlib.h>
  4.  
  5. int main()
  6. {
  7. 	const char *a="12:59", *b="13:12";
  8.  
  9. 	struct tm x={.tm_mday=1,.tm_year=70,.tm_hour=atoi(a),.tm_min=atoi(a+3)},
  10. 			  y={.tm_mday=1,.tm_year=70,.tm_hour=atoi(b),.tm_min=atoi(b+3)};
  11.  
  12. 	printf("%d", (int)difftime(mktime(&y),mktime(&x))/60);
  13. 	return 0;
  14. }
  15.  
Success #stdin #stdout 0s 2300KB
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13
https://ideone.com/QMzBoN
language:
C99 (gcc 8.3)
created:
9 years ago
visibility:
public

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