Sorry for asking very simple question.I'm new to coding.
Input txt file
5,3
001
110
111
110
001
I need to print the output as
U1: 001
U2: 110
U3: 111
U4: 110
U5: 001
Upto now I was able to print the contents with this:
#include <stdio.h>
void main() {
FILE *fopen(), *fp;
int c;
fp = fopen("read.txt","r");
c = getc(fp) ;
while (c!= EOF) {
putchar(c);
c = getc(fp);
}
fclose(fp);
}
Can Anybody tell how should I proceed?
Most of your work is done inside the while loop.
But you're not doing enough work ...
a) you need to count lines
b) you need to print the "U#"
Suggestion: create a variable for the line counting business and rewrite your loop to consider it. Here's a few snippets
int linecount = 0;
printf("U%d: ", linecount)
if (c == '\n') linecount += 1;
Oh! You really shouldn't add the prototype for fopen yourself. It is already specified with #include <stdio.h>.
And well done for declaring c as int. Many people do the error of declaring it char which is incompatible with EOF and all the range of characters
I would read the data a line at a time with fgets. When you have a complete line in a buffer, it'll be pretty easy to get fprintf to put in your line header with a format like "U%d: %s\n".
