C Programming - Geeksforgeeks

int main() int x = 5, y = 10; swap(&x, &y); printf("x = %d, y = %d", x, y); // x = 10, y = 5 return 0;

“C Programming Language – GeeksforGeeks” main page → Basics → Pointers → Data Structures in C → Company-specific coding rounds. geeksforgeeks c programming

Happy coding! – Write once, compile anywhere (almost). int main() int x = 5, y =

*a = *a ^ *b; *b = *a ^ *b; *a = *a ^ *b; | Limitation | Suggestion | |------------|-------------| | Some articles have inconsistent formatting | Cross-check with “The C Programming Language” (K&R) | | Not all code is strictly standard C (some Turbo C legacy) | Compile with -Wall -pedantic in GCC | | Limited project-based learning | Use GFG + build your own shell or text editor | Conclusion GeeksforGeeks is not just a reference — it’s an interactive coding companion for C. Whether you are preparing for a GATE exam, a placement interview, or want to deeply understand pointers and memory, GFG’s structured content and practice problems are invaluable. *a = *a ^ *b; *b = *a

Introduction C programming remains the cornerstone of modern software development. From operating systems to embedded devices, C's efficiency and control over system resources make it indispensable. GeeksforGeeks (GFG) has emerged as one of the most trusted platforms for learning C, offering thousands of examples, coding problems, and in-depth articles.

#include <stdio.h> void swap(int *a, int *b) *a = *a + *b; *b = *a - *b; *a = *a - *b;

This works but risks overflow. Alternative using XOR: