#include <stdio.h>
#define MAXLINE 1000 /*maximum input line size*/
int getline(char line[], int maxline);
void copy(char to[], char from[]);
/*print longest input line*/
main(){
int len; /*current line length*/
int max; /*maximum length seen so far*/
char line[MAXLINE]; /*current input line*/
char longest[MAXLINE]; /*longest line saved here*/
max = 0;
while((len = getline(line, MAXLINE)) > 0){
if( len > max ){
max = len;
copy(longest, line);
}
}
if( max > 0){ /*there was a line*/
printf("%s", longest);
}
return 0;
}
/*getline : read a line into s, return length */
int getline(char s[], int lim){
int c, i ;
for(i = 0; i < lim - 1 && (c = getchar()) != EOF && c != '\n'; i ++){
s[i] = c;
}
if(c == '\n'){
s[i] = '\n';
i ++;
}
s[i] = '\0';
return i ;
}
/*copy : copy 'from' into 'to' ; assume to is big enough*/
void copy(char to[], char from[]){
int i ;
i = 0;
while((to[i] = from[i]) != '\0')
++i;
}
C语言实现拷贝输入的最长的行
最新推荐文章于 2024-06-29 14:38:00 发布