C Program to Count Number of Words in a String

This is a C Program to Count the Number of Words in a given text or Sentence.

Problem Description

This program takes a string as input and count the number of words in the input string.

Problem Solution

1. Take a string as input.
2. Using for loop search for a empty space in between the words in the string.
3. Consecutively increment a variable. This variable gives the count of number of words.

Program/Source Code

Here is source code of the C Program to Count the Number of Words in a given text Or Sentence. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/*
```

 * C Program to Count Number of Words in a given Text Or Sentence

```
 */
```
```
#include <stdio.h>
```
```
#include <string.h>
```
```
 
```
```
void main()
```
```
{
```
```
    char s[200];
```
```
    int count = 0, i;
```
```
 
```
```
    printf("Enter the string:\n");
```
```
    scanf("%[^\n]s", s);
```
```
    for (i = 0;s[i] != '\0';i++)
```
```
    {
```

        if (s[i] == ' ' && s[i+1] != ' ')

```
            count++;    
```
```
    }
```

    printf("Number of words in given string are: %d\n", count + 1);

```
}
```

Program Explanation

1. Take a string as input and store it in the array s[].
2. Using for loop search for a space ‘ ‘ in the string and consecutively increment a variable count.
3. Do step-2 until the end of the string.
4. Increment the variable count by 1 and then print the variable count as output.

Runtime Test Cases

Enter the string:
welcome to sanfoundry's c-programming class!
Number of words in given string are: 5
 
Enter the string:
Best Books in C Programming
Number of words in given string are: 6

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