WRITE YOUR QUESTION RELATED IN C

AREA OF TRIANLGE



#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
int i;
float a,b,c,area,s,l,m;
printf("enter 1 for using Heron's formula 2 for general formula\n");
scanf("%d",&i);
switch(i)
{
case 1:
    printf("enter the value of three sides of the triangle\n");
    scanf("%f%f%f",&a,&b,&c);
    s=(a+b+c)/2;
    area=sqrt(s*(s-a)*(s-b)*(s-c));
    printf("AREA OF TRIANGLE=%f",area);
    break;
case 2:
    printf("enter the base and height of the triangle\n");
    scanf("%f%f",&l,&m);
    area=(0.5)*l*m;
    printf("area of the triangle is %f", area);
    break;
default:
    printf("SEE YOU SOON\n BYE");
    break;
}

}

AREA OF TRIANGLE


#include<stdio.h>
#include<conio.h>
int fact(int);
int b,p;
void main()
{
printf("enter a number\n");
scanf("%d",&b);
fact(b);
printf("factorial of %d is %d",b,p);
getch();
}
int fact(int b)
{
    if(b==0)
        return(1);
    else
p=b*fact(b-1);
return(p);
}

REVERSE TRIANGLE


#include<stdio.h>
#include<conio.h>
void main()
{

    int i,j,k;
    for(i=0;i<10;i++)
    {
        for(k=0;k<i;k++)
        {
            printf(" ");
        }
        for(j=10;j>2*i;j--)
        {
            printf("*");
        }
        printf("\n");

    }
}

FIBONACCI USING C




#include<stdio.h>
#include<conio.h>
void fib();
void main()
{
    fib();

}
void fib()
{

    int a=0,b=1,c=0,i,n;
  printf("enter the range\n");
  scanf("%d",&n);
printf("%d\n",c);
  for(i=0;i<n-1;i++)
  {
  c=b+a;
  b=a;
  a=c;

   printf("%d\n",c);
   }
}

SUM HARMONIC SERIES IN C



#include<stdio.h>
#include<conio.h>
void main()
{
float i,k;
float sum=0.0;
printf("please enter the value of n\n");
scanf("%f",&k);
for(i=1;i<=k;i++)
{
sum=sum+(1/(i));
}
printf("sum=%f",sum);
}

READ STRING


#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char a[6][12]={"nitin","anurag","satlaj","ashish","charu","kislay"};
char name[12];
int i,b;
printf("enter your name\n");
scanf("%s",name);
for(i=0;i<6;i++)
{
 b=strcmp(name,&a[i][0]);
 if(b==0)
        printf("your entry is leagal\n");


}

}