Dijkstra's algorithm with negative weights

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有刺的猬
有刺的猬 2020-11-30 01:06

Can we use Dijkstra\'s algorithm with negative weights?

STOP! Before you think \"lol nub you can just endlessly hop between two points and get an in

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  • 2020-11-30 01:59

    An expression tree is a binary tree in which all leaves are operands (constants or variables), and the non-leaf nodes are binary operators (+, -, /, *, ^). Implement this tree to model polynomials with the basic methods of the tree including the following:

    1. A function that calculates the first derivative of a polynomial.
    2. Evaluate a polynomial for a given value of x.

    [20] Use the following rules for the derivative: Derivative(constant) = 0 Derivative(x) = 1 Derivative(P(x) + Q(y)) = Derivative(P(x)) + Derivative(Q(y)) Derivative(P(x) - Q(y)) = Derivative(P(x)) - Derivative(Q(y)) Derivative(P(x) * Q(y)) = P(x)*Derivative(Q(y)) + Q(x)*Derivative(P(x)) Derivative(P(x) / Q(y)) = P(x)*Derivative(Q(y)) - Q(x)*Derivative(P(x)) Derivative(P(x) ^ Q(y)) = Q(y) * (P(x) ^(Q(y) - 1)) * Derivative(Q(y))

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