Compare Strings

Medium Strings
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Problem Statement

Write a C program to compare two strings lexicographically (print 0 if equal, positive if first > second, negative if first < second).

Input Format

Two space-separated strings.

Output Format

Print an integer representing the comparison result.

Constraints

Length <= 100

Sample Input

apple apricot

Sample Output

15

Explanation

Compare corresponding characters of both strings ASCII-wise until a difference or null terminator is found.

Starter Code

#include <stdio.h>

int main() {
    char str1[101], str2[101];
    if (scanf("%100s %100s", str1, str2) == 2) {
        // Write your code here to compare strings and print result
    }
    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