#include <stdio.h>
int square(int n) {
return n * n;
}
int main() {
int result;
result = square(6);
printf("Square = %d\n", result);
return 0;
}Coding works best on desktop or with an external keyboard.
Demonstrates a function with a return type. Shows how a function performs a calculation, returns a value to the calling function, and uses the returned result.
#include <stdio.h>
int square(int n) {
return n * n;
}
int main() {
int result;
result = square(6);
printf("Square = %d\n", result);
return 0;
}C is a general-purpose, procedural programming language that provides low-level access to memory, efficient performance, and a foundation for system and application software development.
Origin & Creator
Created by Dennis Ritchie at Bell Labs in 1972, originally for developing the UNIX operating system.
Industrial Note
C is essential in embedded systems, OS kernels, compilers, device drivers, and performance-critical applications where low-level memory control and speed are required.