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  1. #include <stdio.h>
  2.  
  3. #define MAXLINE 300
  4.  
  5. int get_line(char s[]);
  6. void reverse(char s[], char rs[], int len);
  7.  
  8. int main() {
  9.     int len;
  10.     char line[MAXLINE];
  11.     char reversed_line[MAXLINE];
  12.  
  13.     while ((len = get_line(line)) > 0) {
  14.         reverse(line, reversed_line, len);
  15.         printf("%s\n", line);
  16.         printf("%s\n", reversed_line);
  17.     }
  18.  
  19.     return 0;
  20. }
  21.  
  22. int get_line(char s[]) {
  23.  
  24.     int c, i;
  25.     int last_letter = 0;
  26.  
  27.     for (i = 0; (c=getchar()) != EOF && (i != (MAXLINE - 2)); ++i) {
  28.         if (c == '\n') {
  29.             break;
  30.         }
  31.         else if (c == '\t' || c == ' ') {
  32.             s[i] = c;
  33.         }
  34.         else {
  35.             s[i] = c;
  36.             last_letter = i;
  37.         }
  38.     }
  39.  
  40.     s[last_letter + 1] = '\0';
  41.  
  42.     return last_letter;
  43. }
  44.  
  45. void reverse(char line[], char reversed[], int len) {
  46.     int i = 0;
  47.  
  48.     while (i <= len) {
  49.         reversed[i] = line[len - i];
  50.         i++;
  51.     }
  52.  
  53.     reversed[i+1] = '\0';
  54. }
Success #stdin #stdout 0s 9424KB
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https://ideone.com/obvjq7
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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