C program to accept a matrix and determine whether it is a sparse matrix or not?. A sparse matrix is a matrix, which has more zero elements than nonzero elements. Read more about C Programming Language . /************************************************************ You can use all the programs on www.c-program-example.com* for personal and learning purposes. For permissions to use …
Finding the second largest and second smallest elements in an array can be done in a single pass through the data — O(n) time, O(1) space — without sorting. The key is maintaining four running extremes: largest, second_largest, smallest, second_smallest. The original program sorted the array first (O(n²) with bubble sort), then accessed fixed indices …
C Program to multiply given number by 4 using bitwise operators. Bitwise operators allows to cahnge or edit the specific bits within an integer. Program will multiply a given number by 4 using left shift(<<) bitwise operator. Read more about C Programming Language . /************************************************************ You can use all the programs on www.c-program-example.com* for personal …
Computing x raised to the power n (written xn) naively requires n multiplications. Binary exponentiation (also called fast power or exponentiation by squaring) reduces this to O(log n) multiplications by halving the exponent at each step: if n is even, compute xn/2 and square it; if n is odd, multiply x by xn-1. The original …
The standard library’s strlen() counts characters in a string by walking from the first character until it reaches the null terminator (‘\0’) — the zero byte that marks the end of every C string. Implementing strlen() yourself is a classic exercise that teaches exactly how strings work in C. The original post had two serious …
A cube is a three-dimensional shape with six equal square faces. Given the side length s, the surface area is 6s² (six faces, each with area s²) and the volume is s³. This program reads the side length and computes both values using only basic arithmetic — no need for pow() and the -lm flag …