#include <stdio.h>
#include <conio.h>
#define size 5
int queue[5][2] = {0};
int top = -1;
int bottom;
void push(int value, int pr)
{
int i,j,k;
if(top < size-1)
{
if(queue[top][1] > pr)
{
for(i=0;i<top;i++)
{
if(queue[i][1] > pr)
{
break;
}
}
for(j=top;j>=i;j--)
{
queue[j+1][0] = queue[j][0];
queue[j+1][1] = queue[j][1];
}
top++;
queue[i][0] = value;
queue[i][1] = pr;
}
else
{
top++;
queue[top][0] = value;
queue[top][1] = pr;
}
}
else
{
printf("queue overflow \n");
}
}
void pop()
{
int i;
if(queue[0][0] == 0)
{
printf("\n The queue is empty \n");
}
else
{
printf("After , dequeue the following value is erased \n %d \n", queue[0][0]);
for(i=0;i<top;i++)
{
queue[i][0] = queue[i+1][0];
queue[i][1] = queue[i+1][1];
}
queue[top][0] = 0;
queue[top][1] = 0;
top--;
}
}
void display()
{ int i,j;
printf("Element\tPriority \n");
for(i=size - 1;i>=0;i--)
{
for(j=0;j<2;j++)
{
printf(" %d\t",queue[i][j]);
}
printf("\n");
}
}
int main()
{
int i,j, ch=0 ,value = 0,pr=0;
while(1)
{
printf("\n Please Enter the choice. \n");
printf("1 for Enqueue \n 2 for Dequeue \n 3 for display\n 5 for exit: \t \n");
scanf("%d",&ch);
switch(ch)
{
case 1:
printf("\n Please Enter the number to be inserted: \t ");
scanf("%d", &value);
printf("\n Please Enter the priority: \t ");
scanf("%d", &pr);
push(value,pr);
break;
case 2:
pop();
break;
case 3:
display();
break;
case 5:
exit(0);
default:
printf("You entered wrong choice\n");
}
}
}
