Computer Programming

C Program to Convert a String to Lowercase Without strlwr()

C Program to Convert a String to Lowercase Without strlwr()

Converting a string to lowercase is a very common operation in C programming. Normally, you might use the strlwr() function, but like strupr(), it is not part of the standard C library and may not work in every compiler. That is why it is useful to know how to implement this operation manually. Understanding lowercase […]

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C Program to Find the Frequency of Words in a String

C Program to Find the Frequency of Words in a String

Counting the frequency of words in a string is a fundamental task in text processing, useful in applications like word counters, text analytics, and data mining. In C, this task requires handling strings as arrays of characters, parsing words, and keeping track of their occurrences. This tutorial will guide you through multiple methods to calculate

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C Program to Find the First Non-Repeating Character in a String

C Program to Find the First Non-Repeating Character in a String

Finding the first non-repeating character in a string is a classic problem in programming. It involves examining each character in the string and determining which character appears only once and comes first in order. This problem is a common exercise in coding interviews and helps you practice arrays, loops, and character manipulation in C. In

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C Program to Count the Occurrences of Each Character in a String

C Program to Count the Occurrences of Each Character in a String

Counting the occurrences of each character in a string is a common programming task. It helps you analyze text, understand frequency patterns, and build applications such as word counters, text analyzers, and encryption programs. In C, strings are arrays of characters ending with a null terminator (\0). By scanning the string character by character, we

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Ultimate Guide to Sorting Strings in C

Ultimate Guide to Sorting Strings in C

Sorting strings is a fundamental concept in C programming. It is widely used in applications like managing lists of names, words, or other textual data. Sorting helps make data organized and readable, and learning different methods teaches important programming skills such as string manipulation, array handling, pointers, and algorithm design. In this guide, we will

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C Program to Check if a String is a Palindrome

C Program to Check if a String is a Palindrome

A palindrome is a word, phrase, number, or sequence of characters that reads the same forward and backward. Some common examples are “madam”, “level”, and “radar”. In C programming, checking if a string is a palindrome helps you understand string manipulation, looping, recursion, and pointers. This problem may look simple, but it teaches important concepts

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