A simple calculator in C using switch statement reads an operator character (+, -, *, /) and dispatches to the correct arithmetic operation. The switch statement is ideal here: each operator maps to exactly one case, with a default branch catching anything unsupported. This program also demonstrates proper division-by-zero handling — an error that causes …
Bubble Sort is the simplest sorting algorithm to understand and implement. It works by repeatedly comparing adjacent elements and swapping them if they are in the wrong order. After each pass, the largest unsorted element has “bubbled up” to its correct position at the end — just like air bubbles rising to the surface of …
Binary search in C finds a target value in a sorted array by repeatedly halving the search space. At each step it compares the target against the middle element: if they match, the search is done; if the target is smaller, discard the right half; if larger, discard the left half. This gives O(log n) …
Decimal to binary conversion in C uses the repeated-division-by-2 algorithm: divide the number by 2, record the remainder (0 or 1), then divide again until the quotient reaches 0. Reading the remainders from bottom to top gives the binary equivalent. This conversion is foundational for understanding how computers store integers — every value you work …
The area of an isosceles triangle in C is computed using the Pythagorean theorem: given the base and the length of the two equal sides, you drop a perpendicular from the apex to the midpoint of the base, splitting the triangle into two right triangles. The height h = sqrt(side² − (base/2)²), and the area …