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  1. # include <stdio.h>
  2.  
  3.  
  4. int myStrlen(char s[]){
  5. int i;
  6. for(i=0;s[i]!='\0';i++)
  7. {}
  8. return i;
  9.  
  10. }
  11.  
  12. int main(){
  13. int len;
  14. char s[100];
  15. scanf("%s",s);
  16. len = myStrlen(s);
  17. printf("%s -> %d\n",s,len);
  18. return 0;
  19. }
  20.  
Success #stdin #stdout 0s 5320KB
stdin
abcd
stdout
abcd -> 4