Answers to basic programming.
#include <stdio.h>
int main()
{
float a, b, c;
printf("Enter three numbers: ");
scanf("%f %f %f", &a, &b, &c);
if(a>=b && a>=c)
printf("Largest number = %f", a);
if(b>=a && b>=c)
printf("Largest number = %f", b);
if(c>=a && c>=b)
printf("Largest number = %f", c);
return 0;
}
number 2#include <stdio.h>
int main()
{
char a[4];
int b=0;
char c;
printf("Enter the four digit number \n");
scanf("%s",&a);
for (b=0;b<=3;b++)
{
c = a[b];
printf("%c, ",c);
}
return 0;
}
number 3#include <stdio.h>
int main()
{
int n; /*is the number of times we are looping*/
int b; /* b is the loop counter.*/
int c; /* c is the number we are entering*/
printf("Enter n \n");
scanf("%d",&n);
for (b=0;b<=(n-1);b++)
{
printf("Enter a number \n");
scanf("%d",&c);
if (c<0)
{
break;
}
}
return 0;
}
number 4
#include<stdio.h>
int main()
{
int r;/*number of rows*/
int c;/*number of columns */
int d=0;/*number of stars to print*/
for (c=0;c<=5;c++)/*loop*/
{
for (r=0;r<=d;r++)/*loop*/
{
printf("*");
}
d++;/*increment d from one star to the next*/
printf("\n");/*next line*/
}
/* second part */
d=5;
for (c=5;c>=0;c--)/*loop*/
{
for (r=0;r<=d;r++)/*loop*/
{
printf("*");/*the stars to be printed*/
}
d--;/*decrease no of rows.*/
printf("\n");/*next line*/
}
return 0;
}
number5#include <stdio.h>
#include <math.h>
void main()
{
int p;
int x;
int y;
int s;
float total;
printf("enter x");
scanf("%d",&x);
printf("enter y");
scanf("%d",&y);
p=x*y;
s=x+y;
total = s*s + p *(s-x) * (p+y);
printf("Total is: %f",total);
}
number 6#include <math.h>
#include <stdio.h>
int main()
{
int x,x1;
int a,b,c;
printf("enter a b and c");
scanf("%d %d %d",&a,&b,&c);
/*if a and b are zero=>no solution*/
/*if a is zero=>one root(-c/b)*/
/*if b*b-4ac is negative=>no roots*/
/*otherwise=> two roots*/
x= (-b - sqrt((b*b)-(4*a*c)))/(2*a);
x1 =( -b+ sqrt((b*b)-(4*a*c)))/(2*a);
printf("Root one: %d and root two is: %d",x,x1);
return 0;
}
