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  1. #include <stdio.h>
  2.  
  3. #define MAXLINE 40 /* maximum input line size */
  4.  
  5. int getlines(char line[], int maxline);
  6. void copy(char to[], char from[]);
  7.  
  8. /* print longest input line */
  9. int main()
  10. {
  11.     int c;
  12.     int len;    /* current line length */
  13.     int max;    /* maximum length seen so far */
  14.     char line[MAXLINE];     /* current input line */
  15.     char longest[MAXLINE];  /* longest line saved here */
  16.  
  17.     max = 0;
  18.  
  19.     while ((len = getlines(line, MAXLINE)) > 0) {
  20.         if (line[len-1] != '\n')
  21.             while ((c = getchar()) != EOF && c != '\n')
  22.                 ++len;
  23.  
  24.         if (len > max) {
  25.             max = len;
  26.             copy(longest, line);
  27.         }
  28.     }
  29.  
  30.     if (max > 0) {    /* there was a line */
  31.         printf("Longest line with %d characters:\n", max);
  32.         printf("%s ...\n", longest);
  33.     }
  34.  
  35.     return 0;
  36. }
  37.  
  38. /* getline: read a line s, return length */
  39. int getlines(char s[], int lim)
  40. {
  41.     int c, i;
  42.  
  43.     for (i = 0; i < lim-1 && (c = getchar()) != EOF && c != '\n'; ++i)
  44.         s[i] = c;
  45.     if (c == '\n') {
  46.         s[i] = c;
  47.         ++i;
  48.     }
  49.     s[i] = '\0';
  50.  
  51.     return i;
  52. }
  53.  
  54. /* copy: copy 'from' into 'to'; assume to is big enough */
  55. void copy(char to[], char from[])
  56. {
  57.     int i;
  58.  
  59.     i = 0;
  60.     while ((to[i] = from[i]) != '\0')
  61.         ++i;
  62. }
  63.  
Success #stdin #stdout 0s 2296KB
comments (?)
stdin 
asfasd fasdfsadfsadfa
stdout 
Longest line with 21 characters:
asfasd fasdfsadfsadfa ...
https://ideone.com/VMRqk2
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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