n rockets launched to a plain, which can be regarded as a two-dimensional plane.The rockets land in sequence.The. ith rocket will bring up smoke when it lands. The range is a circle with radius
There are n n rockets launched to a plain, which can be regarded as a two-dimensional plane.The rockets land in sequence.The i-th i−th rocket will bring up smoke when it lands. The range is a circle with radius r_i r i .if the smoke cover the j-th j−th rocket, it will cause the loss of v_j v j .How much loss does each rocket cause.
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