C program to implement queue data structure
This is a simple queue implementation using array. Code Walkthrough Circular Queue: Uses modulo…
September 08, 2025
1 min
Published by Author 17
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C program to swap the rows-to-columns for any square matrix
This is essentially asking for a transpose of a square matrix (rows become columns and vice versa…
September 08, 2025
1 min
C Program to implement custom mutex_lock() and mutex_unlock()
This problem is a tricky question often asked during tech interviews. Here we need to create custom…
September 07, 2025
1 min
C Program to implement modulo (%) operator using bitwise operators
This is a common interview question to implement the modulo operator without using the operator…
September 07, 2025
1 min
C Program to reverse bits in a 32-bit unsigned word
C Program Code Walkthrough The function reverseBits iterates 32 times (for each bit). In each step…
September 07, 2025
1 min
Time and Space Complexity in Programming
What is Time Complexity? Time complexity means how much time (number of steps or operations) an…
September 02, 2025
1 min
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