Solution | URI Online Judge | 1012 Area

URI Online Judge | 1012

Area

Adapted by Neilor Tonin, URI  Brazil

Timelimit: 1

Make a program that reads three floating point values: A, B and C. Then, calculate and show:
a) the area of the rectangled triangle that has base A and height C.
b) the area of the radius's circle C. (pi = 3.14159)
c) the area of the trapezium which has A and B by base, and C by height.
d) the area of ​​the square that has side B.
e) the area of the rectangle that has sides A and B.

Input

The input file contains three double values with one digit after the decimal point.

Output

The output file must contain 5 lines of data. Each line corresponds to one of the areas described above, always with a corresponding message (in Portuguese) and one space between the two points and the value. The value calculated must be presented with 3 digits after the decimal point.

Input Samples	Output Samples
3.0 4.0 5.2	TRIANGULO: 7.800 CIRCULO: 84.949 TRAPEZIO: 18.200 QUADRADO: 16.000 RETANGULO: 12.000

12.7 10.4 15.2

TRIANGULO: 96.520 CIRCULO: 725.833 TRAPEZIO´: 175.560 QUADRADO: 108.160 RETANGULO: 132.080

সল্যুশন্সঃ 

#include<iostream>
#include<iomanip>
using namespace std;
main()
{
    float A, B, C;

    cin >> A >> B >> C;
    cout << fixed;

    cout << "TRIANGULO: " << setprecision(3) << (A*C)/2 << endl;
    cout << "CIRCULO: " << setprecision(3) << (3.14159*(C*C)) << endl;
    cout << "TRAPEZIO: " << setprecision(3) << (((A+B)/2)*C) << endl;
    cout << "QUADRADO: " << setprecision(3) << (B*B) << endl;
    cout << "RETANGULO: " << setprecision(3) << (A*B) << endl;

    return 0;
}

আলোচনাঃ 
কোনো টপিক না বুঝলে অবশ্যই কমেন্টস করবেন। কোড কপি পেষ্ট না করে আগে বুঝুন দেন নিজে নিজে করুন। কোডিং এর মজা টা বুঝবেন।