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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main(void) {
  5. 	char p[100];
  6. 	fgets(p, sizeof(p), stdin);
  7. 	char c[100];
  8. 	int i = 0;
  9. 	int k = 8;
  10. 	int n =  strlen(p)-1;
  11. 	p[n] = 0;
  12. 	for (i = 0 ; i != n ; i++) {
  13. 		c[i] =  ((p[i] -'a' + k) % 26)  + 'a';
  14. 	}
  15. 	c[i] = 0;
  16. 	printf("%s\n", c);
  17. 	for (i = 0 ; i != n ; i++) {
  18. 		c[i] =  ((p[i] -'a' - k) % 26)  + 'a';
  19. 	}
  20. 	printf("%s\n", p);
  21. 	return 0;
  22. }
  23.  
Success #stdin #stdout 0s 10320KB
comments (?)
stdin 
quick brown fox jumps over the lazy dogc
stdout 
ycqks\jzwev\nwf\rcuxa\wdmz\bpm\tihg\lwo
quick brown fox jumps over the lazy dog
https://ideone.com/NgcMwz
language:
C99 (gcc 8.3)
created:
6 years ago
visibility:
public

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