Lesson 2 of 8Article15 minFREE

Variables, Data Types, and Operators

Primitive data types

int for whole numbers.
float and double for decimal values.
char for single characters.
Use sizeof(type) to inspect memory footprint.

Operators in C

Arithmetic and comparison

#include <stdio.h>

int main(void) {
    int a = 10, b = 3;
    printf("Sum: %d\n", a + b);
    printf("Remainder: %d\n", a % b);
    printf("a > b: %d\n", a > b);
    return 0;
}

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