LW5qKA - Online C++ Compiler & Debugging Tool

#include <stdio.h>

int main() {
    int n, tq, i, time = 0, done = 0;
    int bt[20], rem[20], wt[20], tat[20];

    printf("Enter number of processes: ");
    scanf("%d", &n);

    printf("Enter burst time for each process:\n");
    for (i = 0; i < n; i++) {
        printf("P%d: ", i+1);
        scanf("%d", &bt[i]);
        rem[i] = bt[i];
        wt[i] = 0;
    }

    printf("Enter time quantum: ");
    scanf("%d", &tq);

    while (done < n) {
        for (i = 0; i < n; i++) {
            if (rem[i] > 0) {
                if (rem[i] > tq) {
                    time += tq;
                    rem[i] -= tq;
                } else {
                    time += rem[i];
                    wt[i] = time - bt[i];
                    rem[i] = 0;
                    done++;
                }
            }
        }
    }

    float total_wt = 0, total_tat = 0;

    for (i = 0; i < n; i++) {
        tat[i] = wt[i] + bt[i];
        total_wt += wt[i];
        total_tat += tat[i];
    }

    printf("\nProcess\tBT\tWT\tTAT\n");
    for (i = 0; i < n; i++)
        printf("P%d\t%d\t%d\t%d\n", i+1, bt[i], wt[i], tat[i]);

    printf("\nAverage Waiting Time     = %.2f", total_wt / n);
    printf("\nAverage Turnaround Time  = %.2f\n", total_tat / n);

    return 0;
}