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Operators and Operands An operator is a symbol that performs an action on one or more values. In the expression 7 + 3, the numbers 7 and 3 are operands, while + is the operator. Arithmetic Operators Symbol Meaning Example + addition 12 + 7 == 19 - subtraction / negasion 12 - 7 == 5 * multiplication / repetition 3 * 4 == 12 / true d ...

Equalizing Card Piles (Greedy Approach) To distribute cards equally among $N$ piles, calculate the average number of cards per pile and subtract this value from each pile's count. This transforms the problem into finding the minimum number of moves to zero out the differences. Iterating from left to right, if a pile has a non-zero discrpeancy, ...

Arithmetic operators are used in mathematical expressions and behave as they do in algebra. Assuming integer variables x = 10 and y = 20: Operator Description Example + Addition x + y == 30 - Subtraction x - y == -10 * Multiplication x * y == 200 / Division y / x == 2 % Modulus (remainder after division) y % x == 0 ++ Increment ...

In binary, the most significant bit (MSB) serves as the sign indicator: 0 for positive, 1 for negative. For positive integers, the true form, one's complement, and two's complement are identical. For negative integers: One's complement is derived by inverting all bits of the true form except the sign bit. Two's complement is calculated by addi ...