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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main(void) {
  5.  
  6. char str[1024] = "Hello World";
  7. char tmp[2] = ".";
  8.  
  9. strcat(str, tmp);
  10. // your code goes here
  11.  
  12. printf("%s", str);
  13. return 0;
  14. }
  15.  
Success #stdin #stdout 0s 2160KB
stdin
Standard input is empty
stdout
Hello World.