###### tags: `Zerojudge` 【題解】c294: APCS-2016-1029-1 三角形辨別 === Posted on 2022/4/25 | By : Victoria1103 【題目敘述】https://zerojudge.tw/ShowProblem?problemid=c294 ```cpp= #include <iostream> #include <algorithm> using namespace std; int main () { int a[3]; while (cin>>a[0]>>a[1]>>a[2]) { sort (a , a+3); cout << a[0] << " " << a[1] << " " << a[2]<<endl; if (a[0] + a[1] <= a[2]) { cout << "No" <<endl; } else if (a[0]*a[0] + a[1]*a[1] < a[2]*a[2]) { cout << "Obtuse" <<endl; } else if (a[0]*a[0] + a[1]*a[1] == a[2]*a[2]) { cout << "Right" <<endl; } else if (a[0]*a[0] + a[1]*a[1] > a[2]*a[2]) { cout << "Acute" <<endl; } } return 0; }