C Program to Find the Frequency of “the” Word in a String

«
»

This is a C program to find the frequency of the word ‘the’ in a given sentence.

Problem Description

This program takes the sentence as input and finds the frequency of the word ‘the’ in a given sentence.

Problem Solution

1. Take any sentence as input.
2. Check for the word ‘the’ in the input sentence.
3. Use a variable to keep the count of number of ‘the’ in the sentence.

advertisement
Program/Source Code

Here is source code of the C program to find the frequency of the word ‘the’ in a given sentence. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

  1. /*
  2.  *  C program to accept a string and find the number of times the word
  3.  * 'the' appears in that string
  4.  */
  5. #include <stdio.h>
  6.  
  7. void main()
  8. {
  9.     int count = 0, i, times = 0, t, h, e, space;
  10.     char string[100];
  11.  
  12.     puts("Enter a string:");
  13.     gets(string);
  14.    /*   Traverse the string to count the number of characters */
  15.     while (string[count] != '\0')
  16.     {
  17.         count++;
  18.     }
  19.     /*   Finding the frequency of the word 'the' */
  20.     for (i = 0; i <= count - 3; i++)
  21.     {
  22.         t =(string[i] == 't' || string[i] == 'T');
  23.         h =(string[i + 1] == 'h' || string[i + 1] == 'H');
  24.         e =(string[i + 2] == 'e'|| string[i + 2] == 'E');
  25.         space =(string[i + 3] == ' ' || string[i + 3] == '\0');
  26.         if ((t && h && e && space) == 1)
  27.             times++;
  28.     }
  29.     printf("Frequency of the word 'the' is %d\n", times);
  30. }
Program Explanation

1. Take any sentence as input and store it in the array string[].
2. If the input string has ‘t’, ‘h’, ‘e’ and ‘ ‘ consecutively, then store that values in the variables t, h, e and space respectively.
3. Use the variable times to count the number of ‘the ‘ in the input sentence. Increment the variable times if and only if the variables t, h, e and space have values in it.
4. Print the variable times as output and exit.

Note: Join free Sanfoundry classes at Telegram or Youtube
advertisement
advertisement
Runtime Test Cases
Enter a string:
The gandhi jayanthi is celeberated on october 2 is the day
that he has born.
Frequency of the word 'the' is 2

Sanfoundry Global Education & Learning Series – 1000 C Programs.

Here’s the list of Best Books in C Programming, Data-Structures and Algorithms

Take C Programming Practice Tests - Chapterwise!
Start the Test Now: Chapter 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
advertisement
If you wish to look at other example programs on Strings, go to C Programming Examples on Strings. If you wish to look at programming examples on all topics, go to C Programming Examples.

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & technical discussions at Telegram SanfoundryClasses.