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Author: parthnamdev

Fibonacci using recursion.c

@@ -0,0 +1,20 @@
+#include<stdio.h>
+void printFibonacci(int n){
+    static int n1=0,n2=1,n3;
+    if(n>0){
+         n3 = n1 + n2;
+         n1 = n2;
+         n2 = n3;
+         printf("%d ",n3);
+         printFibonacci(n-1);
+    }
+}
+int main(){
+    int n;
+    printf("Enter the number of elements: ");
+    scanf("%d",&n);
+    printf("Fibonacci Series: ");
+    printf("%d %d ",0,1);
+    printFibonacci(n-2);//n-2 because 2 numbers are already printed
+  return 0;
+ }

Fibonacci.c

@@ -0,0 +1,20 @@
+#include<stdio.h>
+void printFibonacci(int n){
+    static int n1=0,n2=1,n3;
+    if(n>0){
+         n3 = n1 + n2;
+         n1 = n2;
+         n2 = n3;
+         printf("%d ",n3);
+         printFibonacci(n-1);
+    }
+}
+int main(){
+    int n;
+    printf("Enter the number of elements: ");
+    scanf("%d",&n);
+    printf("Fibonacci Series: ");
+    printf("%d %d ",0,1);
+    printFibonacci(n-2);//n-2 because 2 numbers are already printed
+  return 0;
+ }

alphabet triangle.c

@@ -0,0 +1,20 @@
+    #include<stdio.h>
+    #include<stdlib.h>
+    int main(){
+      int ch=65;
+        int i,j,k,m;
+      system("cls");
+        for(i=1;i<=5;i++)
+        {
+            for(j=5;j>=i;j--)
+                printf(" ");
+            for(k=1;k<=i;k++)
+                printf("%c",ch++);
+                ch--;
+            for(m=1;m<i;m++)
+                printf("%c",--ch);
+            printf("\n");
+            ch=65;
+        }
+    return 0;
+    }

armstrong number.c

@@ -0,0 +1,19 @@
+#include<stdio.h>
+ int main()
+{
+int n,r,sum=0,temp;
+printf("enter the number=");
+scanf("%d",&n);
+temp=n;
+while(n>0)
+{
+r=n%10;
+sum=sum+(r*r*r);
+n=n/10;
+}
+if(temp==sum)
+printf("armstrong  number ");
+else
+printf("not armstrong number");
+return 0;
+}

assembly.c

@@ -0,0 +1,14 @@
+    #include<stdio.h>
+    //executed on turbo c.  used to add two numbers in C.
+    void main() {
+       int a = 10, b = 20, c;
+
+       asm {
+          mov ax,a
+          mov bx,b
+          add ax,bx
+          mov c,ax
+       }
+
+       printf("c= %d",c);
+    }

decimal to binary.c

@@ -0,0 +1,19 @@
+    #include<stdio.h>
+    #include<stdlib.h>
+    int main(){
+    int a[10],n,i;
+    system ("cls");
+    printf("Enter the number to convert: ");
+    scanf("%d",&n);
+    for(i=0;n>0;i++)
+    {
+    a[i]=n%2;
+    n=n/2;
+    }
+    printf("\nBinary of Given Number is=");
+    for(i=i-1;i>=0;i--)
+    {
+    printf("%d",a[i]);
+    }
+    return 0;
+    }

factorial using recursion.c

@@ -0,0 +1,21 @@
+    #include<stdio.h>
+
+    long factorial(int n)
+    {
+      if (n == 0)
+        return 1;
+      else
+        return(n * factorial(n-1));
+    }
+
+    void main()
+    {
+      int number;
+      long fact;
+      printf("Enter a number: ");
+      scanf("%d", &number);
+
+      fact = factorial(number);
+      printf("Factorial of %d is %ld\n", number, fact);
+      return 0;
+    }

factorial.c

@@ -0,0 +1,13 @@
+    #include<stdio.h>
+    int main()
+    {
+     int i,fact=1,number;
+     printf("Enter a number: ");
+      scanf("%d",&number);
+        for(i=1;i<=number;i++){
+          fact=fact*i;
+      }
+      printf("Factorial of %d is: %d",number,fact);
+    return 0;
+    }
+

fibonacci triangle.c

@@ -0,0 +1,24 @@
+    #include<stdio.h>
+    #include<stdlib.h>
+    int main(){
+       int a=0,b=1,i,c,n,j;
+    system("cls");
+        printf("Enter the limit:");
+        scanf("%d",&n);
+        for(i=1;i<=n;i++)
+        {
+            a=0;
+            b=1;
+            printf("%d\t",b);
+            for(j=1;j<i;j++)
+            {
+                c=a+b;
+                printf("%d\t",c);
+                a=b;
+                b=c;
+
+            }
+            printf("\n");
+        }
+    return 0;
+    }

hello if !;.c

@@ -0,0 +1,6 @@
+#include<stdio.h>
+ int main()
+{
+ if(printf("hello world")){}
+return 0;
+}

hello switch !;.c

@@ -0,0 +1,6 @@
+#include<stdio.h>
+ int main()
+{
+switch(printf("hello world")){}
+return 0;
+}

hello while !;.c

@@ -0,0 +1,6 @@
+#include<stdio.h>
+ int main()
+{
+   while(!printf("hello world")){}
+return 0;
+}

matrix multiplication.c

@@ -0,0 +1,49 @@
+    #include<stdio.h>
+    //#include<stdlib.h>
+    int main(){
+    int a[10][10],b[10][10],mul[10][10],r,c,i,j,k;
+    //system("cls");
+    printf("enter the number of row=");
+    scanf("%d",&r);
+    printf("enter the number of column=");
+    scanf("%d",&c);
+    printf("enter the first matrix elements=\n");
+    for(i=0;i<r;i++)
+    {
+    for(j=0;j<c;j++)
+    {
+    scanf("%d",&a[i][j]);
+    }
+    }
+    printf("enter the second matrix elements=\n");
+    for(i=0;i<r;i++)
+    {
+    for(j=0;j<c;j++)
+    {
+    scanf("%d",&b[i][j]);
+    }
+    }
+
+    printf("multiplied matrix is as follows : \n");
+    for(i=0;i<r;i++)
+    {
+    for(j=0;j<c;j++)
+    {
+    mul[i][j]=0;
+    for(k=0;k<c;k++)
+    {
+    mul[i][j]+=a[i][k]*b[k][j];
+    }
+    }
+    }
+    //printing multiplied matrix
+    for(i=0;i<r;i++)
+    {
+    for(j=0;j<c;j++)
+    {
+    printf("%d\t",mul[i][j]);
+    }
+    printf("\n");
+    }
+    return 0;
+    }

number in characters.c

@@ -0,0 +1,57 @@
+#include<stdio.h>
+#include<stdlib.h>
+int main(){
+long int n,sum=0,r;
+system("cls");
+printf("enter the number=");
+scanf("%ld",&n);
+while(n>0)
+{
+r=n%10;
+sum=sum*10+r;
+n=n/10;
+}
+n=sum;
+while(n>0)
+{
+r=n%10;
+switch(r)
+{
+case 1:
+printf("one ");
+break;
+case 2:
+printf("two ");
+break;
+case 3:
+printf("three ");
+break;
+case 4:
+printf("four ");
+break;
+case 5:
+printf("five ");
+break;
+case 6:
+printf("six ");
+break;
+case 7:
+printf("seven ");
+break;
+case 8:
+printf("eight ");
+break;
+case 9:
+printf("nine ");
+break;
+case 0:
+printf("zero ");
+break;
+default:
+printf("tttt");
+break;
+}
+n=n/10;
+}
+return 0;
+}

palindrome.c

@@ -0,0 +1,19 @@
+    #include<stdio.h>
+    int main()
+    {
+    int n,r,sum=0,temp;
+    printf("enter the number=");
+    scanf("%d",&n);
+    temp=n;
+    while(n>0)
+    {
+    r=n%10;
+    sum=(sum*10)+r;
+    n=n/10;
+    }
+    if(temp==sum)
+    printf("palindrome number ");
+    else
+    printf("not palindrome");
+    return 0;
+    }

prime with repetition.c

@@ -0,0 +1,21 @@
+#include<stdio.h>
+int main(){
+int n,i,m=0,flag=0,x=1;
+do{printf("Enter the number to check prime:");
+scanf("%d",&n);
+m=n/2;
+
+for(i=2;i<=m;i++)
+{
+if(n%i==0)
+{
+printf("Number is not prime\n");
+flag=1;
+break;
+}
+}
+if(flag==0)
+printf("Number is prime\n");
+}while(x>0);
+return 0;
+ }

prime.c

@@ -0,0 +1,21 @@
+#include<stdio.h>
+int main(){
+int n,i,m=0,flag=0,x=1;
+do{printf("Enter the number to check prime:");
+scanf("%d",&n);
+m=n/2;
+
+for(i=2;i<=m;i++)
+{
+if(n%i==0)
+{
+printf("Number is not prime\n");
+flag=1;
+break;
+}
+}
+if(flag==0)
+printf("Number is prime\n");
+}while(x>0);
+return 0;
+ }

reverse number.c

@@ -0,0 +1,15 @@
+#include<stdio.h>
+ int main()
+{
+int n, reverse=0, rem;
+printf("Enter a number: ");
+  scanf("%d", &n);
+  while(n!=0)
+  {
+     rem=n%10;
+     reverse=reverse*10+rem;
+     n/=10;
+  }
+  printf("Reversed Number: %d",reverse);
+return 0;
+}