Question

Make a text file todolist.txt as follows,

Go to gym

Go to post office and go back home

Do homework

Wash clothes

Now develop a C program that can count and output the number of word “go” (case insensitive) on to the screen.

Sample output:

File todolist.txt contains 3 go’s.

Hint: use fgets() function.

Answer 1

1.ANSWER

GIVENTHAT:

#include <stdio.h>

#include<string.h>

#include<ctype.h>

int main(void) {

FILE *fp;

char data[100],word[100];

int i=0,count=0;

//open file for reading

printf("Enter word to get its occurence: ");

scanf("%s",word);

//convert word to lowercase

for(i=0;i<strlen(word);++i)

word[i]=tolower(word[i]);

fp=fopen("todolist.txt","r");

while(fscanf(fp,"%s",data)!=-1)

{

//convert string to lowercase

for(i=0;i<strlen(data);++i)

data[i]=tolower(data[i]);

if(strcmp(data,word)==0)

++count;

}

printf("File todolist.txt contain %d %s's\n",count,word);

return 0;

}

Output:-