Question

let's say we have 2 text files called hello.txt and hello2.txt

hello.txt contains...

hi

my

name

is

justin

and hello2.txt contains

my justin

so hello.txt conains all the words and hello2.txt containts "ranges" for hello1.txt

write a C program such that it will print all the words from hello.txt between ranges given in hello2.txt

use fscanf

so for this case it should print name is only

Answer 1

Hey,

Note: Brother in case of any queries, just comment in box I would be very happy to assist all your queries

#include <stdio.h>
#include <stdlib.h> // For exit() function
int match2Strings(char a[],char b[])
{
int i;
for(i=0;a[i]!='';i++)
{
if(a[i]!=b[i])
return 0;
}
return 1;
}
int main()
{
char c[1000];
FILE *fptr;

if ((fptr = fopen("hello.txt", "r")) == NULL)
{
printf("Error! opening file");
// Program exits if file pointer returns NULL.
exit(1);
}

FILE *fptr1;

if ((fptr1 = fopen("hello2.txt", "r")) == NULL)
{
printf("Error! opening file");
// Program exits if file pointer returns NULL.
exit(1);
}
char first[100],second[100];
fscanf(fptr1,"%s", first);
fscanf(fptr1,"%s", second);
// reads text until newline
int flag=0;
while(fscanf(fptr,"%s", c)!=EOF)
{
if(strlen(c)==strlen(second)&&flag==1)
{
if(match2Strings(second,c)==1)
flag=-1;
}

if(flag==1)
printf("%s ",c);
if(strlen(c)==strlen(first)&&flag==0)
{
flag=match2Strings(first,c);
}

}

//printf("Data from the file: %s", c);
fclose(fptr);

return 0;
}

Kindly revert for any queries

Thanks.