#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#include<string.h>
int pd(int a,int b);
void pj(int x);
int sx (void);
int main()
{
    int i = 0;
    char password[20] = {0};
    for(i=0; i<3; i++)
	{
		printf("请输入密码:  ");
		scanf("%s", password);
		if(0 == strcmp(password, "123456"))
		{
			break;
		}
		else
		{
			printf("密码输入错误，请再次输入！\n");		
		}
	}
	if(i<3)
		{
			printf("登录成功\n");
			printf("开始测试\n");
			sx();
		}
	
	else
		printf("退出程序\n");		
    return 0;
}
int sx (void)
{
	int dyx,dex,jsjg,srjg,j,x,sum;
		sum=0;
		srand((unsigned)time(NULL));
	for(j=1;j<=10;j++)
	{
		int q;
		q=rand()%2;
		switch(q)
		{
			case 1:
			dyx=rand()%25+1;
			dex=rand()%25+1;
			jsjg=dyx+dex;
			printf("%d+%d=",dyx,dex);
			scanf("%d",&srjg);
			x=pd(srjg,jsjg);
		    break;
			case 0:
			dyx=rand()%50+1;
			dex=rand()%50+1;
			if(dyx>=dex)
			{
			jsjg=dyx-dex;
			printf("%d-%d=",dyx,dex);                        
			scanf("%d",&srjg);
			x=pd(srjg,jsjg);
			break;
			}
			else
			{
				jsjg=dex-dyx;
			printf("%d-%d=",dex,dyx);                        
			scanf("%d",&srjg);
			x=pd(srjg,jsjg);
			break;
			}
				
		}
		sum+=x;
	}
	pj(sum);
	return 0;
}
int pd(int a,int b)
{
	int fs,i,xdjg;
	    if(a==b)
		i=0;
		else
		{
			for(i=1;i<3;i++)
			{
			printf("答案错误，请重新输入：");
			scanf("%d",&xdjg);
			a=xdjg;
			if(a==b)
			break;
			}
			
		} 

	switch(i)
	{
		case 0:fs=10;break;
		case 1:fs=7;break;
		case 2:fs=5;break;
		default:fs=0;printf("正确答案：%d\n",b);
	
	
	}

	return fs;
	
}
	void pj(int x)
	{
		int c;
		c=x/10;
		switch(c)
		{
			case 10:printf("SMART");break;
			case 9:printf("SMART");break;
			case 8:printf("GOOD");break;
			case 7:printf("OK");break;
			case 6:printf("PASS");break;
			default:printf("TRY AGAIN");
	    }
		
	}