给我发一篇实现短作业优先进程调度算法的完整代码

下面是一个简单的短作业优先进程调度算法的实现代码：

#include <stdio.h>

#define MAX_PROCESSES 10

typedef struct {
    int pid;
    int arrival_time;
    int burst_time;
    int waiting_time;
    int turnaround_time;
} Process;

void sjf(Process processes[], int n) {
    int i, j;
    Process temp;

    // Sort the processes by arrival time
    for (i = 0; i < n - 1; i++) {
        for (j = 0; j < n - i - 1; j++) {
            if (processes[j].arrival_time > processes[j+1].arrival_time) {
                temp = processes[j];
                processes[j] = processes[j+1];
                processes[j+1] = temp;
            }
        }
    }

    int current_time = 0;
    int completed = 0;
    int shortest_job;

    while (completed < n) {
        shortest_job = -1;

        // Find the shortest job that has arrived
        for (i = 0; i < n; i++) {
            if (processes[i].arrival_time <= current_time && processes[i].burst_time > 0) {
                if (shortest_job == -1 || processes[i].burst_time < processes[shortest_job].burst_time) {
                    shortest_job = i;
                }
            }
        }

        if (shortest_job == -1) {
            // No jobs have arrived yet
            printf("Idle %d-%d\n", current_time, current_time+1);
            current_time++;
        } else {
            // Run the shortest job
            printf("Running process %d from %d-%d\n", processes[shortest_job].pid, current_time, current_time+1);
            processes[shortest_job].burst_time--;
            current_time++;

            if (processes[shortest_job].burst_time == 0) {
                // Job has completed
                completed++;

                processes[shortest_job].waiting_time = current_time - processes[shortest_job].arrival_time - processes[shortest_job].turnaround_time;
                processes[shortest_job].turnaround_time = current_time - processes[shortest_job].arrival_time;

                printf("Process %d completed at %d\n", processes[shortest_job].pid, current_time);
            }
        }
    }

    // Calculate average waiting time and turnaround time
    float avg_waiting_time = 0;
    float avg_turnaround_time = 0;

    for (i = 0; i < n; i++) {
        avg_waiting_time += processes[i].waiting_time;
        avg_turnaround_time += processes[i].turnaround_time;
    }

    printf("Average waiting time: %.2f\n", avg_waiting_time / n);
    printf("Average turnaround time: %.2f\n", avg_turnaround_time / n);
}

int main() {
    Process processes[MAX_PROCESSES];
    int n, i;

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

    for (i = 0; i < n; i++) {
        printf("Enter arrival time and burst time for process %d: ", i+1);
        scanf("%d %d", &processes[i].arrival_time, &processes[i].burst_time);
        processes[i].pid = i+1;
        processes[i].waiting_time = 0;
        processes[i].turnaround_time = 0;
    }

    sjf(processes, n);

    return 0;
}

该代码中，我们使用了一个 `Process` 结构体来存储进程的信息，包括进程 ID、到达时间、执行时间、等待时间和周转时间。然后，我们使用了冒泡排序算法来按到达时间对进程进行排序。

在 `sjf()` 函数中，我们首先初始化一些变量，包括当前时间、已经完成的进程数和最短作业的索引。然后，我们在一个循环中寻找最短的作业，并运行它。如果没有作业到达，则会输出 "Idle"。如果作业已经完成，则会更新等待时间和周转时间，并输出 "Process completed"。

最后，我们计算平均等待时间和平均周转时间，并在主函数中调用 `sjf()` 函数。

这是一个简单的短作业优先进程调度算法的实现代码，你可以基于这个代码进行修改和扩展，以满足你的需求。