Shooting on the array

CodeChefRating 2597Open on judge ↗

You have an array A of length N consisting of positive integers. Let's consider N vertical segments (parallel to y axis) on the plane, the i-th segment connects the points (i, 0) and (i, Ai). You have Q queries of following two types: - + i X : Ai += X - ? i L R : Let's consider R - L+ 1 rays which are parallel to x axis. The j-th ray eminates at point (i - 0.5, L+ j - 1.5) and extends to the

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solution.cppC++17

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