296. Angular Bisector and Tangent

Given is an integer sided triangle ABC with BC≤AC≤AB.
k is the angular bisector of angle ACB.
m is the tangent at C to the circumscribed circle of ABC.
n is a line parallel to m through B.
The intersection of n and k is called E.

How many triangles ABC with a perimeter not exceeding 100000 exist such that BE has integral length?

296. 角平分线和切线

给定一个满足 BC≤AC≤AB 的、各边长都是整数的三角形 ABC。k 是 ∠ACB 的角平分线,m 是 △ABC 的外接圆在 C 处的切线。过 B 作 m 的平行线,记其为 n,并记 n,k 的交点为 E。

满足上述条件,周长不超过 100000 且 BE 长度是整数的三角形有多少个?


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