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71 lines
1.3 KiB
71 lines
1.3 KiB
#include<stdlib.h>
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#include<stdio.h>
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#include<conio.h>
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#include<string.h>
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#include<time.h>
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void main()
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{
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srand(time(NULL));
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int num=0,add=0; /* 答题数，总分 */
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int score[3]={10,7,5};/*得几分*/
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char str[20],str1[10][20];
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while(1)
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{
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int a=0,b=0,d=0,c=0,k=0,i=0,j=-1,result;
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char sf[2]={'+','-'};/* 符号 */
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while(1)
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{
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a=rand()%51;/*0-50的随机数*/
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b=rand()%51;/*0-50的随机数*/
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d=rand()%2;/* 随机符号 */
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if(d==0)c=a+b;
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else c=a-b;
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if(c>=0 && c<=50)/* 如果相同重新出题 */
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{
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sprintf(str,"%d %c %d = \n",a,sf[d],b);
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strcpy(str1[num],str);
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if(num==0) break;
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j=-1;
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for(i=0; i<num; i++)
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{
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if(strcmp(str,str1[i])==0)
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{ j=1;break;}
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}
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if(j<0)
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break;
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}
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}
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printf("%s\n",str);/* 回答 */
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printf("输入计算结果:\n");
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while(1)
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{
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scanf("%d",&result);
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k++;
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if(result==c)
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{
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printf("回答正确!\n");
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add+=score[k-1];
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break;
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}
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else if(k<3)
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{
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printf("错误,请重新回答:\n");
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}
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else
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{ printf("错误,正确答案: %d\n",c);
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break;
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}
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}
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num++;
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if(num==10)break;
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}
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if(add>=90)printf("\nSMART\n");
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else if(add>=80)printf("\nGOOD\n");
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else if(add>=70)printf("\nOK\n");
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else if(add>=60)printf("\nPASS\n");
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else printf("\nTRY AGAIN\n");
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getch();
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}
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