#include<stdio.h> void areaperi ( int r, float *a, float *p ) { *a = 3.14 * r * r ; *p = 2 * 3.14 * r ; } void main( ) { int radius ; float area, perimeter ; printf ( "nEnter radius of a circle " ) ; scanf ( "%d", &radius ) ; areaperi ( radius, &area, &perimeter ) ; printf ( "Area = %f", area ) ; printf ( "nPerimeter = %f", perimeter ) ; }
Enter radius of a circle 5 Area = 78.500000 Perimeter = 31.400000
Shape : Square
Formula : side * side |
Definition :
|
#include<stdio.h>
#include<conio.h>
void main()
{
int side,area;
clrscr(); // Clear Screen
printf("nEnter the Length of Side : ");
scanf("%d",&side);
area = side * side ;
printf("nArea of Square : %d",area);
getch();
}
Output :Enter the Length of Side : 5 Area of Square : 25
formula : area = l * bDefinition
#include<stdio.h>
#include<conio.h>
void main()
{
int length,breadth,side;
clrscr(); // Clear Screen
printf("nEnter the Length of Rectangle : ");
scanf("%d",&length);
printf("nEnter the Breadth of Rectangle : ");
scanf("%d",&breadth);
area = length * breadth;
printf("nArea of Rectangle : %d",area);
getch();
}
Output :
Enter the Length of Rectangle : 5 Enter the Breadth of Rectangle : 4 Area of Rectangle : 20
|
Shape : Circle
Formula : Π * r * r |
Definition :
|
#include<stdio.h>
#include<conio.h>
void main()
{
float radius,area;
clrscr(); // Clear Screen
printf("nEnter the radius of Circle : ");
scanf("%d",&radius);
area = 3.14 * radius * radius;
printf("nArea of Circle : %f",area);
getch();
}
Output :Enter the radius of Circle : 2.0 Area of Circle : 6.14
|
Right angle Triangle
|
Definition :
|
#include<stdio.h>
#include<conio.h>
void main()
{
int base,height;
float area;
clrscr(); // Clear Screen
printf("nEnter the base of Right Angle Triangle : ");
scanf("%d",&base);
printf("nEnter the height of Right Angle Triangle : ");
scanf("%d",&height);
area = 0.5 * radius * radius;
printf("nArea of Right Angle Triangle : %f",area);
getch();
}
Output :Enter the base of Right Angle Triangle : 4 Enter the height of Right Angle Triangle : 8 Area of Right Angle Triangle : 16.0
#include<stdio.h> #include<math.h> int main() { int side; float area,r_4; r_4 = sqrt(3) / 4 ; printf("nEnter the Length of Side : "); scanf("%d",&side); area = r_4 * side * side ; printf("nArea of Equilateral Triangle : %f",area); return(0); }Output :
Enter the Length of Side : 5 Area of Equilateral Triangle : 10.82
r_4 = sqrt(3) / 4 ;Now after computing the value of the Root 3 by 2 we have multiplied it by Square of the side.
area = r_4 * side * side ;
| In this case,the input is sorted while reading and placing it in the array.In all other methods,all input values are placed in array before applying the actual sorting procedure.But here ,the values are sorted while reading them from console.Here the student details are accepted as input and stored in structure type array.Then it is sorted as per the value of the percentage. |
| Basic steps are as follows - |
| -Read a value form console. |
| -In order to place it in given array find its position in such a way that after its insertion the resultant data must be in sorted order. |
| -For this purpose,start shifting the values from bottom of the array downward by one position till getting a proper position. |
| -Insert a new value after getting its proper position. |
#include <stdio.h> #include <math.h> int main() { double result, x = 1.0471; result = cos(x); printf("cos(%.4lf) = %.2lf\n", x, result); return 0; }
#include <stdio.h> #include <math.h> int main() { int n, result; printf("Enter an integer to calculate it's absolute value\n"); scanf("%d", &n); result = abs(n); printf("Absolute value of %d = %d\n", n, result); return 0; }
long absolute(long value) { if (value < 0) { return -value; } else { return value; } }
#include <stdio.h> #include <math.h> int main() { double n, result; printf("Enter a number to calculate it's log(base is 10)\n"); scanf("%lf", &n); result = log10(n); printf("Common log of %.2lf = %.2lf\n", n, result); return 0; }
#include<stdio.h> #include<math.h> main() { int x = 5; double result; result = pow10(x); printf("Ten raised to %d is %lf\n", x, result); return 0; }
#include<stdio.h> #include<conio.h> main() { textcolor(RED); cprintf("C programming"); getch(); return 0; }
#include<stdio.h> #include<conio.h> main() { textcolor(MAGENTA+BLINK); cprintf("C programming"); getch(); return 0; }
#include<stdio.h> #include<conio.h> main() { int x; printf("Hello"); x = wherex(); printf("Horizontal cursor position from where this text appears = %d\n",x); getch(); return 0; }
#include <stdio.h> #include <conio.h> main() { while (!kbhit()) printf("You haven't pressed a key.\n"); return 0; }
#include<stdio.h> #include<conio.h> main() { int x, y; x = 10; y = 10; gotoxy(x, y); printf("C program to change cursor position."); getch(); return 0; }
| Attachment | Size |
|---|---|
 gotoxy.png | 4.17 KB |
#include<stdio.h> #include<conio.h> main() { printf("Waiting for a character to be pressed from the keyboard to exit."); getche(); return 0; }
/* getch in c example */ #include<stdio.h> #include<conio.h> main() { printf("Waiting for a character to be pressed from the keyboard to exit.\n"); getch(); return 0; }
#include<iostream.h> #include<conio.h> main() { cout << "Enter a character"; getch(); }
#include<stdio.h> main() { int c; c = getchar(); putchar(c); return 0; }
