Count Vowels

Easy Strings
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Problem Statement

Write a C program to count the number of vowels (a, e, i, o, u, case-insensitive) in a string.

Input Format

A single word string S.

Output Format

Print the total count of vowels.

Constraints

1 <= Length <= 100

Sample Input

Education

Sample Output

5

Explanation

Vowels in 'Education' are E, u, a, i, o (5 vowels total).

Starter Code

#include <stdio.h>

int main() {
    char s[101];
    if (scanf("%100s", s) == 1) {
        // Write your code here
    }
    return 0;
}

Limits

  • Time Limit: 1s
  • Memory Limit: 256MB

Embedded C Programming

Updated: March 15, 2026
Intermediate

Embedded systems rely on efficient low-level programming to interact directly with hardware. In this course, you will learn how to write practical Embedded C programs used in real microcontroller-based systems. Rather than focusing only on theory, this course follows a practice-driven approach. Each lesson includes hands-on coding exercises that simulate real firmware development tasks used