scanf("%1d%1d",&a1,&a2); if(a1<2)
switch(a2)
18日
11
case 0:printf("ten\n");break;
12
case 1:printf("eleven\n");break;
13
case 2:printf("twelve\n");break;
14
case 3:printf("thirteen\n");break;
15
case 4:printf("fourteen\n") break;
16
case 5:printf(“fifteenin")ibreak;
17
case 6:printf(“sixteen\n");breakj
18 case 7:printf("seventeenin");breaki
19 case 8:printf("eighteen\n");break;
20 case 9:printf("nineteen\n");break;
21
}
22
23
else
switch(a1)
case case case case 2:printf3:printf4:printf5:printf ("twenty"("thirty"("forty")("fifty") ")break;";break;)break;);break;
case case case case 6:printf7:printf8:printf9:printf ("sixty"(Tsevent("eighty("ninety ):break; y");break;");break;");break;
3435
switch(a2)
36
37白
38 case e:break;
case 1:printf("-one");break;
39
case 2:printf“-two");break;
40
case 3:printf( -three"ibreak;
41
42 case 4:printf("-four");breakj
43 case 5:printf "-five);break;
4445 case 6:printf case 7:printf -six"):break; -seven");break;
case 8:printf -eight");break
46
case 9:pnintf("-nine")