• fprintf() in C
• getchar_unlocked() – Faster Input in C/C++ For Competitive Programming
• Program to find all match of a regex in a string
• Removing trailing newline character from fgets() Input
• How to use getline() in C++ when there are blank lines in input?
• C++ string class and its applications
• std::regex_match, std::regex_replace() | Regex (Regular Expression) In C++
• Cin-Cout vs Scanf-Printf
• ctype.h(<cctype>) library in C/C++ with Examples
• Program to check if two strings are same or not
• C Program to Replace a Word in a Text By Another Given Word
• Remove three consecutive duplicates from string
• Program to find Smallest and Largest Word in a String
• Remove a character from a string to make it a palindrome
• Find Excel column number from column title
• Rearrange a string so that all same characters become atleast d distance away
• Check if a two character string can be made using given words
• Program for credit card number validation
• Transform One String to Another using Minimum Number of Given Operation

• fprintf() in C
• getchar_unlocked() – Faster Input in C/C++ For Competitive Programming
• Program to find all match of a regex in a string
• Removing trailing newline character from fgets() Input
• How to use getline() in C++ when there are blank lines in input?
• C++ string class and its applications
• std::regex_match, std::regex_replace() | Regex (Regular Expression) In C++
• Cin-Cout vs Scanf-Printf
• ctype.h(<cctype>) library in C/C++ with Examples
• Program to check if two strings are same or not
• C Program to Replace a Word in a Text By Another Given Word
• Remove three consecutive duplicates from string
• Program to find Smallest and Largest Word in a String
• Remove a character from a string to make it a palindrome
• Find Excel column number from column title
• Rearrange a string so that all same characters become atleast d distance away
• Check if a two character string can be made using given words
• Program for credit card number validation
• Transform One String to Another using Minimum Number of Given Operation

sprintf stands for “String print”. Instead of printing on console, it store output on char buffer which are specified in sprintf.

Sum of 10 and 20 is 30

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Time Complexity: O(n) , where n is the number of elements being stored in buffer.
Auxiliary Space:  O(n) , where n is the number of elements being stored in buffer.