Added Programs

COLUMN WIGGLY.c

@@ -0,0 +1,88 @@
+#include<stdio.h>
+int r,c;
+
+int inp(int arr[r][c],int r,int c)
+{
+    int i,j;
+    for(i=0;i<r;i++)
+    {
+        printf("Enter the elements in the row %d : \n",i+1);
+        for(j=0;j<c;j++)
+        {
+            printf("Enter : ");
+            scanf("%d",&arr[i][j]);
+        }
+    }
+    return arr;
+}
+
+int print(int arr[r][c],int r,int c)
+{
+    int i,j;
+    for(i=0;i<r;i++)
+    {
+        for(j=0;j<c;j++)
+        {
+            printf("%d ",arr[i][j]);
+        }
+    }
+    printf("\n");
+}
+
+int print1(int arr[r][c],int r,int c)
+{
+    int i,j;
+    for(i=0;i<r;i++)
+    {
+        for(j=0;j<c;j++)
+        {
+            printf("%d ",arr[i][j]);
+        }
+    }
+}
+
+int wiggly(int arr[r][c],int arr1[r][c],int r,int c)
+{
+    int i,j,k,counter=0,p=0;
+    for(i=r-1;i>=0;i--)
+    {
+        if(p==0)
+        {
+            for(j=0;j<c;j++)
+            {
+                arr1[counter][j]=arr[j][i];
+            }
+            counter++;
+            p=1;
+        }
+        else
+        {
+            k=0;
+            for(j=c-1;j>=0;j--)
+            {
+                arr1[counter][k]=arr[j][i];
+                k++;
+            }
+            counter++;
+            p=0;
+        }
+    }
+    return arr1;
+}
+
+int main()
+{
+    int i,j;
+    printf("Enter the number of Rows : ");
+    scanf("%d",&r);
+    printf("Enter the number of Columns : ");
+    scanf("%d",&c);
+    int arr[r][c],arr1[r][c];
+    inp(arr,r,c);
+    printf("The Matrix is :\n");
+    print(arr,r,c);
+    wiggly(arr,arr1,r,c);
+    printf("The wiggly Path Array is :\n");
+    print1(arr1,r,c);
+    return 0;
+}

Clock Function.c

@@ -0,0 +1,43 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+int n;
+
+double** random(int n)
+{
+    int i;
+    int *arr;
+    arr=(int*) malloc(n*sizeof(int));
+    for(i=0;i<n;i++)
+    {
+        printf("Enter the Element %d : ",i+1);
+        scanf("%d",(arr+i));
+    }
+    printf("The Elements in the Random Function are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(arr+i));
+    }
+    return arr;
+}
+void main()
+{
+    clock_t start, end;
+    start=clock();
+    int n,*ptr,i;
+    double ctime;
+    printf("Enter the number of elements in the Array : ");
+    scanf("%d",&n);
+    ptr=(int*) malloc(n*sizeof(int));
+    ptr=random(n);
+    end=clock();
+    ctime=((double)(end-start))/CLOCKS_PER_SEC;
+    printf("\nThe time taken by the Random Function is %f seconds.",ctime);
+    printf("\nThe Elements after returning the pointer to the array are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(ptr+i));
+    }
+    free(ptr);
+}

Clock.c

@@ -0,0 +1,43 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+int n;
+
+double** random(int n)
+{
+    int i;
+    int *arr,*pos,max=0;
+    arr=(int*) malloc(n*sizeof(int));
+    for(i=0;i<n;i++)
+    {
+        printf("Enter the Element %d : ",i+1);
+        scanf("%d",(arr+i));
+        if(*(arr+i)>max)
+        {
+            max=*(arr+i);
+            pos=(arr+i);
+        }
+    }
+    printf("The Elements in the Random Function are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(arr+i));
+    }
+    return pos;
+}
+void main()
+{
+    clock_t start, end;
+    start=clock();
+    int n,*ptr,i;
+    double ctime;
+    printf("Enter the number of elements in the Array : ");
+    scanf("%d",&n);
+    ptr=random(n);
+    end=clock();
+    ctime=((double)(end-start))/CLOCKS_PER_SEC;
+    printf("\nThe time taken by the Random Function is %f seconds.",ctime);
+    printf("\nThe Pointer of the Max element in the Array is : %d and the Max element is %d.",ptr,*ptr);
+}
+

Copy Array Using Pointers.c

@@ -0,0 +1,21 @@
+#include<stdio.h>
+void copy(int*,int*,int);
+void main()
+{
+    int a[5]={1,2,3,4,5},b[5];
+    copy(a,b,5);
+}
+void copy(int a[5],int b[5],int size)
+{
+    int i;
+    int *p=a;
+    for(i=0;i<size;i++)
+    {
+        b[i]=*p+i;
+    }
+    printf("The newly created array is : ");
+    for(i=0;i<size;i++)
+    {
+        printf("%d ",b[i]);
+    }
+}

Distance between two Points.c

@@ -0,0 +1,46 @@
+#include<stdio.h>
+#include<math.h>
+int n;
+
+void dis(int arr1[n],int arr2[n],int n)
+{
+    int i,diff=0;
+    for(i=0;i<n;i++)
+    {
+        diff+=pow((arr2[i]-arr1[i]),2);
+    }
+    printf("\nThe distance is %lf.",sqrt(diff));
+}
+
+void main()
+{
+    int n=3,i;
+    int *arr1,*arr2;
+    arr1=(int*)malloc(n*sizeof(int));
+    arr2=(int*)malloc(n*sizeof(int));
+    printf("Array 1 : \n");
+    for(i=0;i<n;i++)
+    {
+        printf("Enter the Element %d : ",i+1);
+        scanf("%d",(arr1+i));
+    }
+    printf("The Elements are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(arr1+i));
+    }
+    printf("\nArray 2 : \n");
+    for(i=0;i<n;i++)
+    {
+        printf("Enter the Element %d : ",i+1);
+        scanf("%d",(arr2+i));
+    }
+    printf("The Elements are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(arr2+i));
+    }
+    dis(arr1,arr2,n);
+    free(arr1);
+    free(arr2);
+}

External 1.c

@@ -0,0 +1,20 @@
+int n;
+void dis(int arr1[n],int arr2[n],int n)
+{
+    int i,diff=0;
+    for(i=0;i<n;i++)
+    {
+        diff+=pow((arr2[i]-arr1[i]),2);
+    }
+    printf("\nThe distance is %lf.",sqrt(diff));
+}
+
+void pro(int arr1[n],int arr2[n],int n)
+{
+    int i,prod=0;
+    for(i=0;i<n;i++)
+    {
+        prod=prod+(arr1[i]*arr2[i]);
+    }
+    printf("\nThe Scalar Product of two Arrays is : %d.",prod);
+}

External 2.c

@@ -0,0 +1,33 @@
+#include<stdio.h>
+#include<math.h>
+#include "7.c"
+int n;
+
+void main()
+{
+    int n=3,i;
+    int *arr1[n],*arr2[n];
+    printf("Array 1 : \n");
+    for(i=0;i<n;i++)
+    {
+        printf("Enter the Element %d : ",i+1);
+        scanf("%d",(arr1+i));
+    }
+    printf("The Elements are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(arr1+i));
+    }
+    printf("\nArray 2 : \n");
+    for(i=0;i<n;i++)
+    {
+        printf("Enter the Element %d : ",i+1);
+        scanf("%d",(arr2+i));
+    }
+    printf("The Elements are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(arr2+i));
+    }
+    dis(arr1,arr2,n);
+}

External 3.c

@@ -0,0 +1,31 @@
+#include<stdio.h>
+#include "7.c"
+
+void main()
+{
+    int n=2,i;
+    int *arr1[n],*arr2[n];
+    printf("Array 1 : \n");
+    for(i=0;i<n;i++)
+    {
+        printf("Enter the Element %d : ",i+1);
+        scanf("%d",(arr1+i));
+    }
+    printf("The Elements are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(arr1+i));
+    }
+    printf("\nArray 2 : \n");
+    for(i=0;i<n;i++)
+    {
+        printf("Enter the Element %d : ",i+1);
+        scanf("%d",(arr2+i));
+    }
+    printf("The Elements are : ");
+    for(i=0;i<n;i++)
+    {
+        printf("%d ",*(arr2+i));
+    }
+    pro(arr1,arr2,n);
+}

Frequency of a character.c

@@ -0,0 +1,45 @@
+#include<stdio.h>
+#include<string.h>
+#include<stdlib.h>
+
+void main()
+{
+    char *a,*b;
+    int i=0,j,k=0,c=0,ptr=0,f=0;
+    a=(char*)malloc(50*sizeof(char));
+    b=(char*)malloc(50*sizeof(char));
+    printf("Enter the String : ");
+    fgets(a,50,stdin);
+    strlwr(a);
+    while(a[i]!='\0')
+    {
+        c=0;
+        f=0;
+        if(a[i]>='a' && a[i]<='z')
+        {
+            for(j=0;j<ptr;j++)
+            {
+                if(b[j]==a[i])
+                {
+                    f=1;
+                    break;
+                }
+            }
+            if(f==0)
+            {
+                b[ptr++]=a[i];
+                for(k=i;a[k]!='\0';k++)
+                {
+                    if(a[k]==a[i])
+                    {
+                        c+=1;
+                    }
+                }
+                printf("The character %c is found %d times in the string.\n",a[i],c);
+            }
+        }
+        i++;
+    }
+    free(a);
+    free(b);
+}

Incrementing Pointer.c

@@ -0,0 +1,8 @@
+#include<stdio.h>
+void main()
+{
+    int a[5]={1,2,3,4,5};
+    int *p=a,*q=a;
+    printf("The value of *p++ is %d",*p++);
+    printf("\nThe value of (*q)++ is %d",(*q)++);
+}