vpBLkc - Online C Compiler & Debugging Tool

#include <stdio.h>


int main()
{
    int i, NOP, sum=0, count=0, y, quant, wt=0, tat=0, at[10], bt[10], temp[10];
    float avg_wt, avg_tat;

    printf("Total number of processes in the system: ");
    scanf("%d", &NOP);
    y = NOP;

    for(i=0; i<NOP; i++)
    {
        printf("\nEnter Arrival and Burst time of Process[%d]\n", i+1);
        printf("Arrival time: ");
        scanf("%d", &at[i]);
        printf("Burst time: ");
        scanf("%d", &bt[i]);
        temp[i] = bt[i];
    }

    printf("Enter the Time Quantum: ");
    scanf("%d", &quant);

    printf("\nProcess No \tBurst Time \tTAT \tWaiting Time ");
    for(sum=0, i=0; y!=0; )
    {
        if(temp[i] <= quant && temp[i] > 0)
        {
            sum += temp[i];
            temp[i] = 0;
            count = 1;
        }
        else if(temp[i] > 0)
        {
            temp[i] -= quant;
            sum += quant;
        }
        if(temp[i]==0 && count==1)
        {
            y--;
            printf("\nP[%d]\t\t%d\t\t%d\t\t%d", i+1, bt[i], sum-at[i], sum-at[i]-bt[i]);
            wt += sum - at[i] - bt[i];
            tat += sum - at[i];
            count = 0;
        }
        if(i == NOP - 1)
            i = 0;
        else if(at[i+1] <= sum)
            i++;
        else
            i = 0;
    }

    avg_wt = (float)wt / NOP;
    avg_tat = (float)tat / NOP;
    printf("\nAverage Turn Around Time: %f", avg_tat);
    printf("\nAverage Waiting Time: %f\n", avg_wt);
}