题解 | #学英语#

#include <stdio.h> char first[19][10]={{"one"},{"two"},{"three"},{"four"},{"five"},{"six"},{"seven"},{"eight"},{"nine"},{"ten"},{"eleven"},{"twelve"},{"thirteen"},{"fourteen"},{"fifteen"},{"sixteen"},{"seventeen"},{"eighteen"},{"nineteen"}}; char second[9][10]={{"ten"},{"twenty"},{"thirty"},{"forty"},{"fifty"},{"sixty"},{"seventy"},{"eighty"},{"ninety"}}; char third[8]="hundred"; char fourth[9]="thousand"; char fifth[8]="million"; void hundred(int n) { if(n>0 && n<1000) { if(n>0 && n<20) printf("%s",first[n-1]); else if(n>19 && n<100) { printf("%s ",second[n/10-1]); if(n%10!=0) printf("%s",first[n%10-1]); } else { printf("%s %s ",first[(n/100)-1],third); if((n%100)/10>1) { printf("and %s ",second[((n%100)/10)-1]); if(n%10!=0) printf("%s ",first[n%10-1]); } else if((n%100)/10==1) printf("and %s ",first[n%100-1]); else if((n%100)/10==0) { if(n==100) printf("%s ",first[n%10-1]); else printf("and %s ",first[n%10-1]); }

    }
}

} void thousand(int n) { if(n>999 && n<1000000) { int i=n/1000; if(i/100!=0) { printf("%s %s ",first[(i/100)-1],third); if((i%100)/10>1) { printf("and %s ",second[((i%100)/10)-1]); if(i%10!=0) printf("%s ",first[i%10-1]); } else if((i%100)/10==1) printf("and %s ",first[i%100-1]); else if((i%100)/10==0) printf("and %s ",first[i%10-1]); } if(i/100==0) { if((i%100)/10>1) { printf("%s ",second[((i%100)/10)-1]); if(i%10!=0) printf("%s ",first[i%10-1]); } else if((i%100)/10<=1) printf("%s ",first[i%100-1]); } printf("%s ",fourth); while(n>1000) n-=1000; hundred(n); } } void million(int n) { if(n>1000000) { int i=n/1000000; printf("%s %s ",first[i-1],fifth); while(n>1000000) n-=1000000; thousand(n); } } int main() { long int n=0; scanf("%ld",&n); million(n); thousand(n); hundred(n); return 0; }