Update q-1.cpp

q-1.cpp

@@ -1,62 +1,91 @@
 //WAP to find area of a circle, a rectangle and a triangle, using concept of function overloading.
+
 #include<iostream>
-#include<math.h>
+
 using namespace std;
-//Area of circle
-float area(float r)
+
+//Function prototying for the function area.
+
+float area(int);
+
+float area(int,int);
+
+float area(float,float);
+
+//defining the area function.
+
+//circle
+
+float area(int r)
 {
-    float ret=3.14*pow(r,2);
-    return ret;
+        return(3.14 * r * r);
 }
-//Area of the rectangle
-float area(float l,float b)
+
+//Triangle
+
+float area(int b,int h)
 {
-    float ret=l*b;
-    return ret;
+        return(0.5 * b * h);
 }
-//Area of the triangle
-float area(float s1,float s2,float s3)
+
+//Rectangle
+
+float area(float l,float b)
 {
-    float t=(s1+s2+s3)/2;
-    float ret=sqrt(t*(t-s1)*(t-s2)*(t-s3));
-    return ret;
+        return (l * b);
 }
+
 int main()
 {
-    int ch;
-    while(1){
-    cout<<"\n 1. Area of circle \n"<<"2. Area of reactangle\n"<<"3. Area of triangle\n"<<"Enter your choice: ";
-    cin>>ch;
-    switch(ch)
-    {
-        case 1:
-        {
-            float n;
-            cout<<"\nEnter radius: ";
-            cin>>n;
-            cout<<"\nArea of sphere: "<<area(n);
-            break;
-        }
-        case 2:
+        float b,h,r,l;
+        int ch;
+
+        do
         {
-            float l,b ;
-            cout<<"\nEnter length and bredth of the rectangle: ";
-            cin>>l>>b;
-            cout<<"Area of Rectangle: "<<area(l,b);
-            break;
-        }
-        case 3:
-        {
-            float s1,s2,s3;
-            cout<<"Enter sides of triangle:";
-            cin>>s1>>s2>>s3;
-            cout<<area(s1,s2,s3);
-            break;
-        }
-        default:
-        cout<<"Invalid Input";
-
-    }
-    }
-return 0;
-}
+                cout<<"\n Enter.. to find  \n";
+
+                cout<<"\n 1. Area of Circle";
+                cout<<"\n 2. Area of Triangle";
+                cout<<"\n 3. Area of Rectangle";
+
+                cout<<"\n 4. Exit from the program ";
+
+                cout<<"\n\n Enter Your Choice : ";
+                cin>>ch;
+                switch(ch)
+                {
+                        case 1:
+                        {
+                                cout<<"\n enter the radius for circle: ";
+                                cin>>r;
+                                cout<<"\n area of circle is : "<<area(r);
+                                break;
+                        }
+
+
+                        case 2:
+                        {
+                                cout<<"\n enter the base & height of triangle : ";
+                                cin>>b>>h;
+                                cout<<"\n area of triangle is : "<<area(b,h);
+                                break;
+                        }
+
+                        case 3:
+                        {
+                                cout<<"\n enter the length & bredth of rectangle : ";
+                                cin>>l>>b;
+                                cout<<"\n Area of rectangle : "<<area(l,b);
+                                break;
+                        }
+
+                        case 4:
+                                exit(0);
+                        default:
+                                cout<<"\n enter a valid choice ";
+                }
+
+        }while(ch!=4);
+
+        return 0;
+}