Write a C program that adds first seven terms of the following series 1/1! +2/2! + 3/3! + ..........

#include< stdio.h>
#include< conio.h>
int main( )
{
int n,i,j,fact;
float sum=0;
clrscr();
for(i=1; i<=7; i++) { fact=1; for(j=i; j>=1; j--) // to find the factorial
fact=fact*j;

sum=sum+(float)i/fact;
}
printf("\nSum : %f",sum);
getch();
return 0;
}

Write a C program to find a peculiar two digit number which is three times the sum of its digits?

example:- 27
=3(2+7)
=3(9)
=27

#include< stdio.h>
#include< conio.h>
int main()
{
int n,sum=0,rem,temp;
clrscr();
printf("Enter any two digit number:");
scanf("%d",&n);
for(temp=n;temp>0;temp=temp/10)
{
rem=temp%10;
sum=sum+rem;
}
if(n==(sum*3))
printf("\nIts a Peculiar two digit number");
else
printf("\nNot a Peculiar two digit number");
getch();
return 0;
}