C in 100 Seconds: Variables — int float char double | Episode 2

Four types in 100 seconds. int for whole numbers, float for decimals, char for single characters, double for precision. Each one printed with its format specifier. Declare a variable, assign a value, print it with printf. Percent d for int, dot two f for float, percent c for char, dot eight f for double. Compile, run, see the output. Student code: https://github.com/GoCelesteAI/c-in-100-seconds/tree/main/episode02 What You'll Learn: • int — whole numbers, no decimals • float — decimal numbers, ~7 digits precision • char — single character, single quotes • double — like float but ~15 digits precision • %d, %.2f, %c, %.8f — format specifiers for printf Next: Episode 3 — Format Specifiers #c #programming #100seconds #learnc #variables #types #int #float #char #double #printf #tutorial Tags c programming, c variables, c types, int float char double, format specifiers, printf c, c tutorial 2026, c beginner, 100 seconds, learn c, coding tutorial