HDU - 1698：Just a Hook

最新推荐文章于 2023-05-27 21:29:16 发布

wingrez

最新推荐文章于 2023-05-27 21:29:16 发布

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分类专栏：【记录】算法题解

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这是一道来源于HDU的比赛题目，涉及数据结构和区间修改操作。Pudge的游戏钩子由相同长度的金属棒组成，通过操作可以将指定范围内的金属棒转化为铜、银或金棒，每种材料对应不同价值。玩家需要计算经过一系列操作后钩子的总价值。给定案例包含金属棒的数量、操作数以及每个操作的起始位置、结束位置和目标材料，输出经过所有操作后的总价值。

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Just a Hook

来源：HDU

标签：数据结构，线段树，区间修改

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题目

In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of several consecutive metallic sticks which are of the same length.
Now Pudge wants to do some operations on the hook.
Let us number the consecutive metallic sticks of the hook from 1 to N. For each operation, Pudge can change the consecutive metallic sticks, numbered from X to Y, into cupreous sticks, silver sticks or golden sticks.
The total value of the hook is calculated as the sum of values of N metallic sticks. More precisely, the value for each kind of stick is