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  1. #include <stdio.h>
  2. int letternum(char *str); 
  3. int main(void)
  4. {
  5. 	char a[100];
  6. 	printf("Please input a string:");
  7. 	scanf("%s",a);
  8. 	printf("The number of letter is %d:",letternum(a));
  9. 	return 0;
  10. }
  11. int letternum(char *str)
  12. {
  13. 	int num=0;
  14. 	while ((*str)!='\0')
  15. 	{
  16. 		if ((*str>='a')&&(*str<='z')||(*str>='A')&&(*str<='Z'))
  17. 		str++;
  18. 	    num++;
  19. 	}
  20. 	return num;
  21. }
  22.  
Time limit exceeded #stdin #stdout 5s 2116KB
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stdin
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abc123
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Standard output is empty
https://ideone.com/I0zK31
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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