joj 1817: Triangle 三角形的判定

jackchen0227

<span style="font-size: 14px;"> 1817: Triangle

ResultTIME LimitMEMORY LimitRun TimesAC TimesJUDGE5s8192K2409685Standard<div class="prob_text">2nd JOJ Cup Online VContest Problem
Given three integers a, b and c(|a|, |b|, |c|<10000), determine if they can compose a valid triangle. If so, further determine which kind of the triangle it is.
Input Specification
The input consists of several lines, each of which contains three integers a, b and c.
Output Specification
For each group of a b and c, first print "Case K:", a space, and then one of the following four lines:
is not a valid triangle.
is a sharp triangle.
is a right triangle.
is a blunt triangle.
corresponding to your determinant, where K is the number of the test cases starting from 1.
Sample Input
3 4 5
3 3 3
1 2 3
3 4 6
Sample Output
Case 1: is a right triangle.
Case 2: is a sharp triangle.
Case 3: is not a valid triangle.
Case 4: is a blunt triangle.