Code:
#include stdio.h
int occur(int [], int, int);
int main()
{
int size, key, count;
int list[20];
int i;
printf("Enter the size of the list: ");
scanf("%d", &size);
printf("Printing the list:\n");
for (i = 0; i < size; i++)
{
list[i] = rand() % size;
printf("%d ", list[i]);
}
printf("\nEnter the key to find it's occurence: ");
scanf("%d", &key);
count = occur(list, size, key);
printf("%d occurs for %d times.\n", key, count);
return 0;
}
int occur(int list[], int size, int key)
{
int i, count = 0;
for (i = 0; i < size; i++)
{
if (list[i] == key)
{
count += 1;
}
}
return count;
}
Output:
Enter the size of the list: 10
Printing the list:
3 6 7 5 3 5 6 2 9 1
Enter the key to find it's occurence: 3
3 occurs for 2 times.
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