#include <stdio.h>
#include <string.h>
#define size 50
typedef struct bank
{
    int process;//进程数
    int resource;//资源数
    int Max[size][size];//最大需求量
    int Allcation[size][size];//已分配资源数
    int Need[size][size];//还需资源数
    int Available[size];
}Bank;
Bank bank;
int k = 0;
int vis[size]; //标记数组
int SafeSeq[size];
void ScanfResource()
{
    int i,j;
    for(i = 0;i < bank.process;i ++)
    {
        printf("----------第%d进程----------\n",i + 1);
        printf("最大资源量:",i + 1);
        for(j = 0;j < bank.resource;j ++)
        {
            scanf("%d",&bank.Max[i][j]);
        }
        printf("\n");
        printf("已分配资源量:",i + 1);
        for(j = 0;j < bank.resource;j ++)
        {
            scanf("%d",&bank.Allcation[i][j]);
        }
        for(j = 0;j < bank.resource;j ++)
        {
            bank.Need[i][j] = bank.Max[i][j] - bank.Allcation[i][j];
        }
        if(i == bank.process - 1 )
             printf("--------------------------------\n");
    }
}



void  PrintfInfo()
{
    int i,j;
    printf("进程\t最大资源量\t已分配资源量\t还需资源量\n");
   for(i = 0;i < bank.process;i ++)
   {
       printf("%d\t",i + 1);
       for(j = 0;j < bank.resource;j ++)
       {

           if(j == bank.resource - 1)
                printf("%d \t",bank.Max[i][j]);
		   else
			   printf("%d  ",bank.Max[i][j]);
       }
       for(j = 0;j < bank.resource;j ++)
       {

           if(j == bank.resource - 1)
                printf("%d \t",bank.Allcation[i][j]);
		   else
				printf("%d  ",bank.Allcation[i][j]);
       }
       for(j = 0;j < bank.resource;j ++)
       {

           if(j == bank.resource - 1)
                printf("%d",bank.Need[i][j]);
		   else
				printf("%d  ",bank.Need[i][j]);
       }
       printf("\n");
   }
}



void  InitResource()
{
    int i,j;
    int s;
    printf("请输入每种资源的数量:\n");
    for(i = 0;i < bank.resource;i ++)
    {
        printf("第%d种：",i + 1);
        scanf("%d",&bank.Available[i]);
        printf("\n");
    }
}

void InitRequest()
{
    int i,s,j;
    for(i = 0;i < bank.resource;i ++)
    {
        s = 0;
        for( j = 0;j < bank.process;j ++)
        {
            s += bank.Allcation[j][i];
        }
        bank.Available[i] = bank.Available[i] - s;
    }
}
int  SafeSequence()
{
    int i,j;
    int flag,flag1;
    i = k = 0;
    while(k <= bank.process - 1)
    {
        flag = flag1 = 0;
        if(i >= bank.process)
            i = 0;
        for(j = 0;j < bank.resource;j ++)
        {
            if(bank.Available[j] < bank.Need[i][j])
            {
                flag = 1;
                break;
            }
        }
        if(flag == 0 && vis[i] == 0)
        {
            vis[i] = 1;
            SafeSeq[k ++] = i;
           
            for(j = 0;j < bank.resource;j ++)
                bank.Available[j] += bank.Allcation[i][j];
         i = -1;
        }
        i ++;
    }
    return  k;
}
int main()
{
    int i,j;
    int k;
    memset(vis,0,sizeof(vis));
    printf("请输入进程数:");
    scanf("%d",&bank.process);
    printf("请输入资源数:");
    scanf("%d",&bank.resource);
    InitResource();
    ScanfResource();
    InitRequest();
    PrintfInfo();
    k = SafeSequence();
    printf("安全序列：");
    for(i = 0;i < k;i ++)
      printf("%d ",SafeSeq[i]);
    return 0;
}