C Exercises: Count blanks, tabs, and newlines in an input text.

Last update on September 18 2025 12:35:16 (UTC/GMT +8 hours)

Count blanks, tabs, and newlines in a text input

Write a C program to count blanks, tabs, and newlines in input text.

Sample Solution:

C Code:

#include <stdio.h>

int main() {
int blank_char, tab_char, new_line; // Variables to count blank characters, tab characters, and newlines
blank_char = 0; // Initialize the count of blank characters
tab_char = 0; // Initialize the count of tab characters
new_line = 0; // Initialize the count of newlines
int c; // Variable to hold input characters

printf("Number of blanks, tabs, and newlines:\n");
printf("Input few words/tab/newlines\n");

  // Loop to read characters until end-of-file (EOF) is encountered
for (; (c = getchar()) != EOF;) {
if (c == ' ') {
      ++blank_char; // Increment the count of blank characters
    }
if (c == '\t') {
      ++tab_char; // Increment the count of tab characters
    }
if (c == '\n') {
      ++new_line; // Increment the count of newlines
    }
  }

  // Print the final counts of blanks, tabs, and newlines
printf("blank=%d,tab=%d,newline=%d\n", blank_char, tab_char, new_line);
}

Sample Output:

Number of blanks, tabs, and newlines:
Input few words/tab/newlines
The quick
brown fox jumps
over the lazy dog
^Z
blank=7,tab=2,newline=3

Flowchart:

C Programming Flowchart: Count blanks, tabs, and newlines in an input text.

For more Practice: Solve these Related Problems:

Write a C program to count the number of blanks, tabs, and newlines from text input until EOF.
Write a C program to count and display the frequency of each whitespace character in user-provided text.
Write a C program to compute the counts of spaces, tabs, and newline characters in multi-line input using a loop.
Write a C program to read text from standard input and output clear counts for spaces, tabs, and newlines.

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C programming Code Editor:

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