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Input an integer array without spaces in C

Last Updated: 13 December 2018

How to input a large number (a number that cannot be stored even in long long int) without spaces? We need this large number in an integer array such that every array elem...read more

C Language

c-input-output

cpp-input-output

C-Input and Output Quiz

Nested printf (printf inside printf) in C

Last Updated: 13 December 2018

Predict the output of the following C program with a printf inside printf.C #includestdio.h int main(){ int x = 1987; printf(%d, printf(%d, printf(%d, x)));...read more

C Language

c-input-output

C-Input and Output Quiz

scanf() and fscanf() in C

Last Updated: 10 January 2025

In C language, scanf() function is used to read formatted input from stdin. It returns the whole number of characters written in it otherwise, returns a negative value.Syn...read more

C Language

c-input-output

C-Input and Output Quiz

Problem With Using fgets()/gets()/scanf() After scanf() in C

Last Updated: 23 July 2025

scanf() is a library function in C. It reads standard input from stdin. fgets() is a library function in C. It reads a line from the specified stream and stores it into th...read more

C Language

c-input-output

C-Input and Output Quiz

C-Library

Difference between getc(), getchar(), getch() and getche()

Last Updated: 23 July 2025

In C, getc(), getchar(), getch(), and getche() are all functions that is used to read input character in different contexts. Although these functions are used for similar ...read more

C Language

c-input-output

C-Input and Output Quiz

What is the difference between printf, sprintf and fprintf?

Last Updated: 23 July 2025

The printf() function is used as a standard method for output operations and C also provides some different versions of this function such as sprintf() and fprintf(). Thes...read more

C Language

c-input-output

C-Input and Output Quiz

Scansets in C

Last Updated: 23 July 2025

scanf family functions support scanset specifiers which are represented by %[]. Inside scanset, we can specify single character or range of characters. While processing sc...read more

C Language

C-Input and Output Quiz

puts() vs printf() for printing a string

Last Updated: 23 July 2025

In C, both puts() and printf() functions are used for printing a string on the console and are defined in stdio.h header file. In this article, we will discuss the differe...read more

C Language

C-Input and Output Quiz

What is use of %n in printf() ?

Last Updated: 09 October 2019

In C printf(), %n is a special format specifier which instead of printing something causes printf() to load the variable pointed by the corresponding argument with a valu...read more

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C Language

C-Input and Output Quiz

What is return type of getchar(), fgetc() and getc() ?

Last Updated: 23 July 2025

In C, getchar(), fgetc(), and getc() all are the functions used for reading characters from input buffer. This buffer is standard input buffer for getchar() and can be any...read more

C Language

GFacts

C-Input and Output Quiz

Return values of printf() and scanf() in C/C++

Last Updated: 29 November 2020

What values do the printf() and scanf() functions return ?printf() : It returns total number of Characters Printed, Or negative value if an output error or an encoding err...read more

C Language

GFacts

cpp-input-output

C-Input and Output Quiz

How to print % using printf()?

Last Updated: 04 April 2025

Here is the standard prototype of printf function in C:int printf(const char *format, ...);The format string is composed of zero or more directives: ordinary characters (n...read more

C Language

c-puzzle

C-Input and Output Quiz

URL: https://www.geeksforgeeks.org/tag/c-input-and-output/

⇱ C-Input and Output Quiz Archives - GeeksforGeeks