c-puzzle

30 posts

Last Updated: 11 November 2022

It is one of the basic need a program may required i.e clear the console during execution time.Need of a clear console screen :A console screen must be cleared once its st...read more

Print a number 100 times without using loop, recursion and macro expansion in C?

Last Updated: 21 June 2022

It is possible to solve this problem using loop or a recursion method. And we have already seen the solution using #define directive (Macro expansion) but what if all thre...read more

C++

c-puzzle

cpp-puzzle

C program to print characters without using format specifiers

Last Updated: 29 October 2017

As we know that there are various format specifiers in C like %d, %f, %c etc, to help us print characters or other data types. We normally use these specifiers along with ...read more

Misc

C Language

c-puzzle

C/C++ Tricky Programs

Last Updated: 14 March 2024

We may come across various tricky programs in our day-to-day life. Maybe in technical interviews, coding tests, or C/C++ classrooms.Here is a list of such programs:-Print ...read more

C++

c-puzzle

cpp-puzzle

How to print a number 100 times without using loop and recursion in C?

Last Updated: 02 March 2023

It is possible to solve this problem using loop or a recursion method but what if both are not allowed? A simple solution is to write the number 100 times in cout statemen...read more

Misc

C Language

c-puzzle

C program to print a string without any quote (single or double) in the program

Last Updated: 31 January 2022

Print a string without using quotes anywhere in the program using C or C++.Note : should not read input from the console.The idea is to use macro processor in C (Refer poi...read more

C/C++ Puzzles

C Language

c-puzzle

C-Macro & Preprocessor

Write a C program to print "GfG" repeatedly without using loop, recursion and any control structure?

Last Updated: 11 October 2018

As we all know the concept of printing the given string repeatedly using various loops(for loop,while loop),recursion and some control structure also. But the question is ...read more

Misc

C Language

c-puzzle

C Program to find direction of growth of stack

Last Updated: 23 July 2025

Prerequisite : Memory Layout of C ProgramsIn a typical process, a stack segment of program contains local variables along with information that is saved each time a functi...read more

C Language

c-puzzle

system-programming

Execute both if and else statements in C/C++ simultaneously

Last Updated: 13 September 2023

Write a C/C++ program that executes both if-else block statements simultaneously.Syntax of if-else statement in C/C++ language is:if (Boolean expression){ // Statement ...read more

Print "Hello World" in C/C++ without using any header file

Last Updated: 13 September 2023

Write a C/C++ program that prints Hello World without including any header file.Conceptually it's seems impractical to write a C/C++ program that print Hello World without...read more

C++

c-puzzle

Write a C program to print "Geeks for Geeks" without using a semicolon

Last Updated: 11 September 2023

First of all we have to understand how printf() function works. Prototype of printf() function is:int printf( const char *format , ...)Parameterformat: This is a string th...read more

Last Updated: 21 June 2018

What code to write in place of "// your code" so that the below code prints 20.C #include stdio.hint f();int main(){ int a = 0; f(); printf(%d,a); ...read more

C Language

c-puzzle

C Program to print numbers from 1 to N without using semicolon?

Last Updated: 23 July 2025

How to print numbers from 1 to N without using any semicolon in C.C #includestdio.h#define N 100// Add your code here to print numbers from 1// to N without usi...read more

C Language

c-puzzle

How to print a variable name in C?

Last Updated: 02 January 2025

Printing a variable name means printing the identifier that is assigned to the variable. To print it, it should be in the form of string. This can be done by using stringi...read more

C Language

c-puzzle

cpp-macros

C-Macro & Preprocessor

How to write a running C code without main()?

Last Updated: 23 July 2025

Write a C language code that prints GeeksforGeeks without any main function. Logically it's seems impossible to write a C program without using a main() function. Since ev...read more

C Language

c-puzzle

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