银行家算法实验报告c语言
时间: 2023-06-30 13:17:59 浏览: 174
以下是银行家算法实验报告的C语言代码示例:
```c
#include <stdio.h>
int main() {
int n, m, i, j, k;
printf("Enter the number of processes: ");
scanf("%d", &n);
printf("Enter the number of resources: ");
scanf("%d", &m);
int available[m], maximum[n][m], allocation[n][m], need[n][m], safeSequence[n], finish[n];
printf("Enter the available resources: ");
for (i = 0; i < m; i++) {
scanf("%d", &available[i]);
}
printf("Enter the maximum resources for each process: ");
for (i = 0; i < n; i++) {
for (j = 0; j < m; j++) {
scanf("%d", &maximum[i][j]);
}
}
printf("Enter the allocated resources for each process: ");
for (i = 0; i < n; i++) {
for (j = 0; j < m; j++) {
scanf("%d", &allocation[i][j]);
need[i][j] = maximum[i][j] - allocation[i][j];
}
finish[i] = 0;
}
int count = 0, safe = 0;
while (count < n) {
for (i = 0; i < n; i++) {
if (!finish[i]) {
int flag = 1;
for (j = 0; j < m; j++) {
if (need[i][j] > available[j]) {
flag = 0;
break;
}
}
if (flag) {
for (j = 0; j < m; j++) {
available[j] += allocation[i][j];
}
finish[i] = 1;
safeSequence[count] = i;
count++;
}
}
}
if (count == n) {
safe = 1;
} else {
safe = 0;
}
}
if (safe) {
printf("Safe sequence: ");
for (i = 0; i < n; i++) {
printf("%d ", safeSequence[i]);
}
printf("\n");
} else {
printf("Unsafe state!\n");
}
return 0;
}
```
该代码实现了银行家算法的逻辑,包括输入进程数、资源数、可用资源、最大资源、已分配资源等信息,然后根据银行家算法的原理判断系统是否处于安全状态,如果是,则输出安全序列;否则输出不安全状态信息。