Start Introduction Functions The First Program Printing Variables Comparison Operators Conditional Statement Return Exits the Function Compound Statement Boolean Operators Return Can Return an Expression Exercise: Maximum of 3 numbers Division Operators While Loop Exercise: Number of Digits More Assignment Operators Character Input Reading Characters in a Loop Exercise: Count Lines, Words, and Characters Reading a Number Break Exits the Loop Check If a Number Is Prime Boolean Flags For Loop Exercise: Fibonacci Sequence Exercise: Euclidean Algorithm Introduction to Pointers Pass by Value Passing a Pointer Scanf Function Exercise: Number of Days Between Two Dates Switch Statement Arrays Exercise: Repeat the Input Exercise: Shift an Array Right Passing an Array to a Function Exercise: Linear Search Exercise: Binary Search Time Complexity Char Type Strings: Introduction Strings: Iteration Strings: Length Strings: Copy Strings: Concatenation to be continued... С Playground Reference Questions or Feedback?

С Playground

Want to test some idea, or check how some language construct works? Do it here.

Note: it's plain C, not C++! std::cout and things like that will not work here.

#include <stdio.h>

int main() {
	printf("Hello World!\n");
	return 0;
}