C++ :

#include <iostream>
using namespace std;
int main() {
    int angle1, angle2, angle3;
    cin >> angle1 >> angle2 >> angle3;
    switch (angle1) {
        case 60:
            switch (angle2) {
                case 60:
                    if (angle3 == 60) cout << "等边三角形";
                    else cout << "普通三角形";
                    break;
                default: cout << "普通三角形"; break;
            }
            break;
        case 90:
            switch (angle2) {
                case 45:
                    if (angle3 == 45) cout << "直角三角形";
                    else cout << "普通三角形";
                    break;
                default: cout << "普通三角形"; break;
            }
            break;
        default: cout << "普通三角形";
    }
    return 0;
}