C Program to Print the Length of a String Using %n Format Specifier Last Updated : 15 Jan, 2025 Comments Improve Suggest changes Like Article Like Report In C, strings are arrays of characters terminated by a null character ('\0') and the length of a string is the number of characters before this null character. In this article, we will learn how to find the length of the string using %n format specifier.The %n is a special format specifier for printf that stores the number of characters printed so far into an integer variable, allowing you to track the string's length without printing anything. So, if we print only the string using printf, we can find the length of the string using %n format specifier. C #include <stdio.h> int main(){ int len = 0; // Print the string and use %n to store number // of characters printed in 'len' printf("Geeks%n", &len); // print length printf(" = %d", len); return 0; } OutputGeeks = 5Explanation: In this program, the string "Geeks" is printed using printf and %n specifier is inserted at the end. It stores the number of characters printed by printf inside variable x which in this case is 5. Comment More infoAdvertise with us Next Article C Program to Print the Length of a String Using %n Format Specifier V vishwajeet_Kamble Follow Improve Article Tags : Strings C/C++ Puzzles C Programs DSA Practice Tags : Strings Similar Reads C Program to Print the Length of a String using Pointers C language provides a built-in function strlen() but in this article, we will learn how to find and print the length of the string using pointers in C.The easiest method to find the length of a string using pointers is by calculating difference between the pointers to the first and last character of 2 min read C Program to Find the Length of a String The length of a string is the number of characters in it without including the null character (‘\0’). In this article, we will learn how to find the length of a string in C.The easiest way to find the string length is by using strlen() function from the C strings library. Let's take a look at an exa 2 min read Lex program to find the Length of a String Problem: Write a Lex program to find the Length of a String Explanation: FLEX (Fast Lexical Analyzer Generator) is a computer program that generates lexical analyzers and was written by Mike Lesk and Eric Schmidt. Lex reads an input stream specifying the lexical analyzer and outputs source code impl 1 min read C Program to Print the First Letter of Each Word In a string that contains multiple words, each word is separated by a whitespace. In this article, we will learn how to print the first letter of each word using a C program.The simplest method to print the first letter of each word is by using a loop. Let’s take a look at an example:C#include <s 3 min read C Program to Find the Size of int, float, double and char Write a C program to find the size of the data types: int, float, double, and char in bytes and print it on the output screen.ExamplesInput: charOutput: Size of char: 1 byteInput: intOutput:Size of int: 4 bytesDifferent Methods to Find the Size of int, float, double and char in CWe can find the size 4 min read Length of a String Without Using strlen() Function in C The length of a string is the number of characters in it without including the null character. C language provides the strlen() function to find the lenght of the string but in this article, we will learn how to find length of a string without using the strlen() function.The most straightforward met 2 min read How to Convert an Integer to a String in C? In C, integers can be represented as strings with each digit represented by corresponding numeric character. In this article, we will learn how to convert integers into the stringExamplesInput: 1234Output: "1234"Explanation: The integer 1234 is converted to the string "1234".Input: -567Output: "-567 3 min read How to Find Length of a String Without string.h and Loop in C? C language provides the library for common string operations including string length. Otherwise, a loop can be used to count string length. But is there other ways to find the string length in C apart from above two methods. In this article, we will learn how to find length of a string without strin 2 min read C program to Count the digits of a number Given a number N, write a C program to find the count of digits in the number N. Examples:Input: N = 12345 Output: 5 Explanation: The count of digit in 12345 = 5 Input: N = 23451452 Output: 8 Explanation: The count of digits in 23451452 = 8Methods to Count Digits of a NumberThere are a few methods t 4 min read Like