牛牛有一个鱼缸。鱼缸里面已经有n条鱼，每条鱼的大小为fishSize[i] (1 ≤ i ≤ n,均为正整数)，牛牛现在想把新捕捉的鱼放入鱼缸。鱼缸内存在着大鱼吃小鱼的定律。经过观察，牛牛发现一条鱼A的大小为另外一条鱼B大小的2倍到10倍(包括2倍大小和10倍大小)，鱼A会吃掉鱼B。考虑到这个，牛牛要放入的鱼就需要保证： 1、放进去的鱼是安全的，不会被其他鱼吃掉 2、这条鱼放进去也不能吃掉其他鱼 鱼缸里面已经存在的鱼已经相处了很久，不考虑他们互相捕食。现在知道新放入鱼的大小范围[minSize,maxSize](考虑鱼的大小都是整数表示),牛牛想知道有多少种大小的鱼可以放入这个鱼缸。
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A declarative, efficient, and flexible JavaScript library for building user interfaces.
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