adding new c program

Armstrong_num.c

@@ -0,0 +1,35 @@
+#include<stdio.h>
+int main()
+{
+    int number,count=0,result=0,mul=1,cnt,rem;
+    printf("Enter any number:");
+        scanf("%d", &number);
+
+    int q=number;
+    while (q!=0){   
+        q=q/10;
+        count++;
+    }
+    cnt=count;
+    q=number;
+    while(q!=0){
+        rem=q%10;
+        while(cnt!=0){
+            mul=mul*rem;
+            cnt--;
+        }
+    result=result+mul;
+    cnt=count;
+    q=q/10;
+    mul=1;
+}
+    if(result==number)
+    {
+        printf("%d is a Armstrong number",number);
+    }
+    else
+    {
+        printf("%d is nnot a Armstrong number",number);
+    }
+return 0;
+}

Factorial.c

@@ -0,0 +1,14 @@
+#include<stdio.h>
+int main()
+{
+    int number,result=0,rem,fact=1;
+    printf("Enter any number:");
+    scanf("%d",&number);
+
+    int q=number;
+    while(q!=0){
+        fact=fact*q;
+        q--;
+    }
+    printf("%d ",fact);
+}

Fibonacci_series.c

@@ -0,0 +1,21 @@
+#include<stdio.h>
+int main()
+{
+    int a,b,i,n,result,res=0;
+    printf("Enter the number till which you want to find fibonacci series:");
+    scanf("%d",&n);
+
+    a=0;
+    b=1;
+
+    for(i=1;i<=n;i++)
+    {
+        printf(" %d ",a);
+        result=a+b;
+        a=b;
+        b=result;
+    }
+    res=a+res;
+
+}
+

Floyds_triangle.c

@@ -0,0 +1,19 @@
+#include<stdio.h>
+int main()
+{
+    int row,i,j,n;
+    printf("Enter the number of rows:");
+    scanf("%d",&row);
+
+    n=1;
+    for(i=1;i<=row;i++)
+    {
+        for(j=1;j<=i;j++)
+        {
+            printf(" %d ", n);
+            n++;
+        }
+        printf("\n");
+    }
+    return 0;
+}

Leap_year_or_not.c

@@ -0,0 +1,25 @@
+#include<stdio.h>
+int main()
+{
+    int year;
+    printf("Enter any year:");
+    scanf("%d", &year);
+
+    if(year%400==0)
+    {
+        printf("%d is a leap year",year);
+    }
+    else if(year%100==0)
+    {
+        printf("%d is not a leap year",year);
+    }
+    else if (year%4==0)
+    {
+        printf("%d is a leap year",year);
+    }
+    else
+    {
+        printf("%d is not a leap year",year);
+    }
+    return 0;
+}

Palindrome_num.c

@@ -0,0 +1,25 @@
+#include<stdio.h>
+int main()
+{
+    int number,q,rem,result=0;
+
+    printf("enter the number:");
+    scanf("%d",&number);
+
+    q=number;
+    while(q!=0)
+    {
+        rem=q%10;
+        result=result*10+rem;
+        q=q/10;
+    }
+    if(result==number)
+    {
+        printf("%d is a palindrome number", number);
+    }
+    else
+    {
+        printf("%d is not a palindrome number",number);
+    }
+    return 0;
+}

Perfect_num.c

@@ -0,0 +1,24 @@
+#include<stdio.h>
+int main()
+{
+    int number;
+    printf("Enter number:");
+    scanf("%d",&number);
+    int i,rem,sum=0;
+    for(i=1;i<number;i++)
+    {
+        rem=number%i;
+        if(rem==0)
+        {
+            sum=sum+i;
+        }
+    }
+    if(sum==number)
+    {
+        printf("YES");
+    }
+    else
+    {
+        printf("NO");
+    }
+}

Prime_num_or_not.c

@@ -0,0 +1,21 @@
+#include<stdio.h>
+int main()
+{
+    int a,i;
+    printf("Enter any +ve number:");
+    scanf("%d",&a);
+
+    i=2;
+    while (i<=a/2)
+    {
+        if(a%i==0)
+        break;
+        i++;
+    }
+    if(i>a/2)
+        printf("%d is a prime number", a);
+    else
+    {
+        printf("%d is not a prime number.", a);
+    }
+}

Strong_num.c

@@ -0,0 +1,39 @@
+#include<stdio.h>
+int main()
+{
+    int rem,result=0,number,count=0,cnt,fact=1;
+    printf("Enter any number:");
+    scanf("%d",&number);
+
+    int q=number;
+    while(q!=0)
+    {
+        q=q/10;
+        count++;
+    }
+    q=number;
+    cnt=count;
+    while(q!=0)
+    {
+        rem=q%10;
+        while(rem!=1)
+        {
+            fact=fact*rem;
+            rem--;
+        }
+        result=result+fact;
+        q=q/10;
+        cnt=count;
+        fact=1;
+
+    }
+    printf("%d ",result);
+    if(result==number)
+    {
+        printf("YES");
+    }
+    else
+    {
+        printf("NO");
+    }
+}

tower_of_hanoi.c

@@ -0,0 +1,22 @@
+#include<stdio.h>
+
+void tower(int num, char frompeg, char topeg, char auxpeg)
+{
+    if(num==1)
+    {
+        printf("Move disk 1 from peg %c to pec %c", frompeg, topeg);
+        return;
+    }
+    tower(num-1,frompeg,auxpeg,topeg);
+    printf("\nMove disk %d from peg %c to pec %c\n",num,frompeg,topeg);
+    tower(num-1,auxpeg,topeg,frompeg);
+}
+
+int main()
+{
+    int num;
+    printf("Enter the number of disk: ");
+        scanf("%d",&num);
+    tower(num, 'A', 'C', 'B');
+    return 0;
+}