编写轮转法的c++代码,进程数n是6
时间: 2024-05-09 20:17:34 浏览: 56
当然,我很乐意回答您的编程问题!以下是一个简单的 C 代码实现:
```c
#include <stdio.h>
int main()
{
int n = 6; // 进程数
int i, j;
for (i = 0; i < n; i++) {
printf("第 %d 轮:\n", i + 1);
for (j = 0; j < n; j++) {
printf("进程 %d 执行\n", (i + j) % n);
}
printf("\n");
}
return 0;
}
```
这段代码使用两层循环实现了轮转法。外层循环控制轮次,内层循环计算每个进程在当前轮次需要执行的顺序。程序会依次输出每一轮的执行顺序。希望这能够回答您的问题!
相关问题
编写轮转法的c++代码,cpu时间限制在1~20之间,进程数n为6
很高兴回答您的问题!以下是编写轮转法的 c 代码:
```
#include <stdio.h>
int main() {
int n = 6; // 进程数
int t = 1; // 时间片长度
int i, j, k;
int bt[6], wt[6], tat[6], rt[6];
int time = 0; // cpu时间
int flag;
for (i = 0; i < n; i++) {
printf("输入进程 %d 的 burst time:", i + 1);
scanf("%d", &bt[i]);
rt[i] = bt[i];
}
while (1) {
flag = 1;
for (i = 0; i < n; i++) {
if (rt[i] > 0) {
flag = 0;
if (rt[i] > t) {
time += t;
rt[i] -= t;
} else {
time += rt[i];
tat[i] = time;
rt[i] = 0;
wt[i] = tat[i] - bt[i];
}
}
}
if (flag == 1) {
break;
}
}
printf("\n进程\tBurst Time\tTurnaround Time\tWaiting Time\n");
for (i = 0; i < n; i++) {
printf("%d\t%d\t\t%d\t\t%d\n", i + 1, bt[i], tat[i], wt[i]);
}
return 0;
}
```
希望能够解决您的问题!关于您的第二个问题,请给我一点时间思考并回答。
编写轮转法的c++代码,采用随机数,CPU时间在1~10之间。进程数n为4~8个并且由键盘输入,对每个进程用随机数产生进程的轮转时间片数及进程所需的时间片数,输出结果大致为 ABCDE BCDEA CDEA DEA ...
好的,这是一个关于编写轮转法的C语言代码的问题,我可以回答。让我看一下您的问题。
以下是C语言代码实现随机轮转法,可以根据您的需求进行修改:
```c
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define MAX_PROCESSES 8
int main() {
int n, i, j;
int quantum = 0;
int remaining_time[MAX_PROCESSES], waiting_time[MAX_PROCESSES], turnaround_time[MAX_PROCESSES];
char process[MAX_PROCESSES] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H' };
printf("Please enter number of processes (4 - 8): ");
scanf("%d", &n);
while (n < 4 || n > 8) {
printf("Invalid number of processes, please enter a number between 4 and 8: ");
scanf("%d", &n);
}
int burst_time[n];
srand(time(NULL));
printf("\nProcess | Burst time\n");
printf("--------------------\n");
for (i = 0; i < n; i++) {
burst_time[i] = rand() % 10 + 1;
printf(" %c | %d \n", process[i], burst_time[i]);
remaining_time[i] = burst_time[i];
waiting_time[i] = 0;
}
printf("--------------------\n");
printf("\nEnter quantum time (1 - 10): ");
scanf("%d", &quantum);
while (quantum < 1 || quantum > 10) {
printf("Invalid quantum time, please enter a number between 1 and 10: ");
scanf("%d", &quantum);
}
int time_elapsed = 0, flag = 0, total_waiting_time = 0, total_turnaround_time = 0, num_completed = 0;
printf("\nGantt chart:\n");
printf("-------------------------------------------------------\n");
while (1) {
flag = 0;
for (i = 0; i < n; i++) {
if (remaining_time[i] > 0) {
flag = 1;
if (remaining_time[i] > quantum) {
printf("| %c\t ", process[i]);
time_elapsed += quantum;
remaining_time[i] -= quantum;
} else {
printf("| %c\t ", process[i]);
time_elapsed += remaining_time[i];
waiting_time[i] = time_elapsed - burst_time[i];
remaining_time[i] = 0;
num_completed++;
turnaround_time[i] = time_elapsed;
total_waiting_time += waiting_time[i];
total_turnaround_time += turnaround_time[i];
}
}
}
if (!flag) break;
}
printf("|\n-------------------------------------------------------\n");
float avg_waiting_time = (float)total_waiting_time / n;
float avg_turnaround_time = (float)total_turnaround_time / n;
printf("\nAverage waiting time: %.2f\n", avg_waiting_time);
printf("Average turnaround time: %.2f\n", avg_turnaround_time);
printf("\nResult: ");
for (i = 0; i < n; i++) {
printf("%c", process[i]);
for (j = i+1; j < n; j++) {
printf("%c", process[j]);
}
for (j = 0; j < i; j++) {
printf("%c", process[j]);
}
printf(" ");
}
return 0;
}
```
这段代码会先要求您输入进程数量,然后生成每个进程的随机时间。随后,它会请求您输入时间片大小,根据时间片大小执行整个过程。
代码还包括生成甘特图和计算平均等待时间和平均周转时间的功能。最后,代码将输出结果,即每个进程的轮转时间。
希望这个代码对您有所帮助。
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