Thread: Priority Queue(no-premption) Implementation

code is not working properly for priorities .what changes should i do?? failing if priority of 1st process is less

Code:

#include<stdio.h>


int wt=0;
float sum=0;
int main()
{
        int pr[5];
        int wait[5];
        int bt[5],tat[5];
        int n,prt,brt,i,j,temp;
        printf("enter the no. of processes");
        scanf("%d",&n);


        for(i=0;i<n;i++)
        {
                      printf("enter the burst time for %d th process",(i+1));
                      scanf("%d",&brt);
                      bt[i]=brt;
        }


        for(i=0;i<n;i++)
        {
                printf("\n Burst time of[%d] process:%d",(i+1),bt[i]);
        }


        //priority
        for(i=0;i<n;i++)
        {
                printf("enter the priority for %dth processes::",(i+1));
                scanf("%d",&prt);
                pr[i]=prt;
        } 




        for(i=0;i<n;i++)
        {
          for(j=0;j<n-i-1;j++)
           {
                if(pr[j]>pr[j+1])
                {
                        temp=bt[j];
                        bt[j]=bt[j+1];
                        bt[j+1]=temp;
                }
           }
        }
        for(i=0;i<n;i++)
        {
          for(j=0;j<n-i-1;j++)
           {
                if(pr[j]>pr[j+1])
                if(pr[j]>pr[j+1])
                {
                        temp=bt[j];
                        bt[j]=bt[j+1];
                        bt[j+1]=temp;
                }
           }
        }
        for(i=0;i<n;i++)
        {
          for(j=0;j<n-i-1;j++)
           {
                if(pr[j]>pr[j+1])
                {
                        temp=wait[j];
                        wait[j]=wait[j+1];
                        wait[j+1]=temp;
                }
           }
        }


        //waiting time loop
        for(i=0;i<n;i++)
        {
                      wait[i]=wt;
                            printf("\nwaiting time of [%d] is ::%d",(i+1),wait[i]);


                        wt=wt+bt[i];


        }
        //calculate sum for avg
        for(i=0;i<n;i++)
        {
                 sum=sum+wait[i];
        }
        sum=sum/n;
        printf("average waiting time=%d",sum);


        for(i=0;i<n;i++)
        {
                tat[i]=wait[i]+bt[i];
                printf("\nturn around time of %dth process:%d",(i+1),tat[i]);
        }
return 0;
}

Seems to work for me. What input are you using?