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  1. #include<stdio.h>
  2. #include<string.h>
  3. #include<stdlib.h>
  4.  
  5. int main()
  6. {
  7. 	char s1[19], s2[19],*p,c,d,k=0;
  8. 	int i;
  9. 	gets(s1);	gets(s2);
  10. 	p = strstr(s1,s2);
  11.  
  12. 	if( (strlen(s2) > strlen(s1))   ||   !p      ) 
  13. 	{printf("-1");goto ex;}
  14.  
  15. 	for(i=0;i<strlen(s1); i++)
  16. 	{
  17. 		c = s1[i];
  18. 		d = s1[i+1];
  19. 		if(c == s2[k]      &&    d == s2[k+1])
  20. 		{
  21. 			printf("%d", i);
  22. 			goto ex;
  23.  
  24. 		}
  25. 	}
  26. 	ex:
  27. 	return 0;
  28. }
Success #stdin #stdout 0s 2296KB
comments (?)
stdin 
Standard input is empty
stdout 
-1
https://ideone.com/wV7V8m
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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