HackerRank C- "Hello World!"




This challenge requires you to print "Hello World!" on a single line, and then print the already provided input string to stdout.

Note: You do not need to read any input in this challenge.



  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <math.h>
  4. #include <stdlib.h>
  5. int main()
  6. {
  7. char s[100];
  8. scanf("%[^\n]%*c", &s);
  9. printf("Hello, World!\n%s", s);
  10. /* Enter your code here. Read input from STDIN. Print output to STDOUT */
  11. return 0;
  12. }




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