C programming Question ans Answer Day-14

66. Program to find power of number.

#include<stdio.h>
#include<conio.h>
void main()
{
    int base, expo;
    int value = 1;
    clrscr();
    printf("Enter base number : ");
    scanf("%d", &base);
    printf("Enter exponent number : ");
    scanf("%d", &expo);

    while (expo != 0)
    {
        // value = value * base;
        value *= base;
        --expo;
    }
    printf("Answer : %d", value);
    getch();
}

67. Program to calculate HCF & LCM.

#include<stdio.h>
#include<conio.h>
void main()
{
    int a, b, x, y, t, hcf, lcm;
    clrscr();
    printf("Enter two numbers : ");
    scanf("%d%d", &x, &y);

    a = x;
    b = y;

    while (b != 0)
    {
        t = b;
        b = a % b;
        a = t;
    }

    hcf = a;
    lcm = (x * y) / hcf;

    printf("\nHighest Common Factor of %d and %d : %d", x, y, hcf);
    printf("\nLeast Common Multiple of %d and %d : %d", x, y, lcm);
    getch();
}

68. Program to find largest among 3 numbers using ternary operator.

#include<stdio.h>
#include<conio.h>
void main()
{
    int a, b, c, big;
    clrscr();
    printf("Enter 3 numbers : ");
    scanf("%d %d %d", &a, &b, &c);

    big = (a > b && a > c ? a : b > c ? b : c);
    printf("\nThe biggest number is : %d", big);
    getch();
}

69. Program to find largest number of 'n' numbers.

#include<stdio.h>
#include<conio.h>
void main()
{
    int n, num, i;
    int big;
    clrscr();
    printf("Enter total numbers : ");
    scanf("%d", &n);

    printf("Number %d : ", 1);
    scanf("%d", &big);

    for (i = 2; i <= n; i++)
    {
        printf("Number %d : ", i);
        scanf("%d", &num);

        if (big < num)
            big = num;
    }

    printf("Largest number is : %d", big);
    getch();
}

70. Program to check whether the number is neon number or not.

#include<stdio.h>
#include<conio.h>
void main()
{
    int n, sq, i, sum = 0;
    clrscr();
    printf("Enter the number : ");
    scanf("%d", &n);

    sq = n * n;

    for (i = sq; i > 0; i = i / 10)
        sum = sum + i % 10;

    if (sum == n)
        printf("%d is a neon number.", n);
    else
        printf("%d is not a neon number.", n);
    getch();
}