题意大致是,给出直角三角形a,b,c(c为斜边)中两个的值(都是正数),求值为-1的那个边.比如3 4 -1,就是求c的长度,输入0 0 0表结束,输出格式如下加粗部分,我自己测自己的运行结果都是正确的,不知为什么总是wa,求大神指点! Mathematics can be so easy when you have a computer. Consider the following example. You probably know that in a right-angled trian