Update Basic_9.c

Basic_1.c

@@ -1,3 +1,21 @@
 // TASK
 // Write code to find if the number is even or odd
 // Code Below
+#include<stdio.h>
+#include<conio.h>
+void main()
+{
+  clrscr();
+  int a,b,c;
+  printf("enter the no. to find out whether it is even or odd");
+  scanf("%d",&a);
+  if(a%2==0)
+  {
+    printf("no. is even");
+  }
+  else
+  {
+    printf("no. is odd"0);
+  }
+  getch();
+}

Basic_12.c

@@ -1,3 +1,15 @@
 // TASK
 // Write code to find cube of a number
 // Code Below
+#include<stdio.h>
+#include<conio.h>
+void main()
+{
+   clrscr();
+   int a,b=0,c;
+   printf("enter the no to take out its cube = ");
+   scanf("%d",&a);
+   b=a*a*a;
+   printf("cube of no. is = %d",b);
+  getch();
+}  

Basic_9.c

@@ -1,3 +1,67 @@
 // TASK
 // Write code to add 2 3D Matrix
 // Code Below
+
+#include<stdio.h>
+#define MAX 20 
+
+
+void    readArray(int a[],int size) 
+{ 
+    int i; 
+    for(i=0;i< size;i++) 
+    { 
+        printf("Enter %d element :",i+1); 
+        scanf("%d",&a[i]); 
+    } 
+} 
+
+void printArray(int a[],int size) 
+{ 
+    int i; 
+    for(i=0;i < size; i++) 
+        printf("%5d",a[i]); 
+} 
+
+void addArray(int a[],int b[],int c[],int size) 
+{ 
+    int i; 
+    for(i=0; i< size;i++) 
+        c[i]=a[i]+b[i]; 
+} 
+
+void subArray(int a[],int b[],int c[],int size) 
+{ 
+        int i; 
+        for(i=0; i< size;i++) 
+                c[i]=a[i]-b[i]; 
+} 
+
+int main() 
+{ 
+    int A[MAX],B[MAX],ADD[MAX],SUB[MAX]; 
+    int i,n; 
+
+
+    printf("\nEnter size of an Array :"); 
+    scanf("%d",&n); 
+
+    printf("\nEnter elements of Array 1:\n"); 
+    readArray(A,n); 
+    printf("\nEnter elements of Array 2:\n"); 
+    readArray(B,n); 
+
+    /* add Arrays*/
+    addArray(A,B,ADD,n); 
+    /* subtract two Arrays*/
+    subArray(A,B,SUB,n); 
+
+    printf("\nArray elements after adding :\n"); 
+    printArray(ADD,n); 
+
+    printf("\nArray elements after subtracting :\n"); 
+    printArray(SUB,n); 
+
+    printf("\n\n"); 
+    return 0; 
+}