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C Language – Beginners info

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data types

bool, a Boolean expression of either true or false
char, a single character like a or 2
double, a floating-point value with more digits than a float
float, a floating-point value, or real number with a decimal value
int, integers up to a certain size, or number of bits
long, integers with more bits, so they can count higher than an int
string, a string of characters

CS50 Library

get_char
get_double
get_float
get_int
get_long
get_string

printf format codes

%c for chars
%f for floats or doubles
%i for ints
%li for long integers
%s for strings

mathematical operators

+ for addition
- for subtraction
* for multiplication
/ for division
% for remainder

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