Array related codes

Reverse array

#include < stdio.h >
int main()
{
int n, c, d, a[100], b[100];
printf("Enter the number of elements in array\n");
scanf("%d", &n);
printf("Enter the array elements\n");
for (c = 0; c < n ; c++)
scanf("%d", &a[c]);
for (c = n - 1, d = 0; c >= 0; c--, d++)
b[d] = a[c];
for (c = 0; c < n; c++)
a[c] = b[c];
printf("Reverse array is\n");
for (c = 0; c < n; c++)
printf("%d\n", a[c]);
return 0;
}



Maximum element in array

#include < stdio.h >
int main()
{
int array[100], maximum, size, c, location = 1;
printf("Enter the number of elements in array\n");
scanf("%d", &size);
printf("Enter %d integers\n", size);
for (c = 0; c < size; c++)
scanf("%d", &array[c]);
maximum = array[0];
for (c = 1; c < size; c++)
{
if (array[c] > maximum)
{
maximum = array[c];
location = c+1;
}
}
printf("Maximum element is present at location %d and it's value is %d.\n", location, maximum);
return 0;
}



Minimum element in array

#include < stdio.h >
int main()
{
int array[100], minimum, size, c, location = 1;
printf("Enter the number of elements in array\n");
scanf("%d",&size);
printf("Enter %d integers\n", size);
for ( c = 0 ; c < size ; c++ )
scanf("%d", &array[c]);
minimum = array[0];
for ( c = 1 ; c < size ; c++ )
{
if ( array[c] < minimum )
{
minimum = array[c];
location = c+1;
}
}
printf("Minimum element is present at location %d and it's value is %d.\n", location, minimum);
return 0;
}



Insert element in array

#include < stdio.h >
int main()
{
int array[100], position, c, n, value;
printf("Enter number of elements in array\n");
scanf("%d", &n);
printf("Enter %d elements\n", n);
for (c = 0; c < n; c++)
scanf("%d", &array[c]);
printf("Enter the location where you wish to insert an element\n");
scanf("%d", &position);
printf("Enter the value to insert\n");
scanf("%d", &value);
for (c = n - 1; c >= position - 1; c--)
array[c+1] = array[c];
array[position-1] = value;
printf("Resultant array is\n");
for (c = 0; c printf("%d\n", array[c]);
return 0;
}



Delete element from array

#include < stdio.h >
int main()
{
int array[100], position, c, n;
printf("Enter number of elements in array\n");
scanf("%d", &n);
printf("Enter %d elements\n", n);
for ( c = 0 ; c < n ; c++ )
scanf("%d", &array[c]);
printf("Enter the location where you wish to delete element\n");
scanf("%d", &position);
if ( position >= n+1 )
printf("Deletion not possible.\n");
else
{
for ( c = position - 1 ; c < n - 1 ; c++ )
array[c] = array[c+1];
printf("Resultant array is\n");
for( c = 0 ; c < n - 1 ; c++ )
printf("%d\n", array[c]);
}
return 0;
}



Merge arrays

#include < stdio.h >
void merge(int [], int, int [], int, int []);
int main() {
int a[100], b[100], m, n, c, sorted[200];
printf("Input number of elements in first array\n");
scanf("%d", &m);
printf("Input %d integers\n", m);
for (c = 0; c < m; c++) {
scanf("%d", &a[c]);
}
printf("Input number of elements in second array\n");
scanf("%d", &n);
printf("Input %d integers\n", n);
for (c = 0; c < n; c++) {
scanf("%d", &b[c]);
}
merge(a, m, b, n, sorted);
printf("Sorted array:\n");
for (c = 0; c < m + n; c++) {
printf("%d\n", sorted[c]);
}
return 0;
}
void merge(int a[], int m, int b[], int n, int sorted[]) {
int i, j, k;
j = k = 0;
for (i = 0; i < m + n;) {
if (j < m && k < n) {
if (a[j] < b[k]) {
sorted[i] = a[j];
j++;
}
else {
sorted[i] = b[k];
k++;
}
i++;
}
else if (j == m) {
for (; i < m + n;) {
sorted[i] = b[k];
k++;
i++;
}
}
else {
for (; i < m + n;) {
sorted[i] = a[j];
j++;
i++;
}
}
}
}

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