poj 2121——Inglish-Number Translator

题意：将英文数字翻译为阿拉伯数字。囧！结束条件忘了判断，贡献两wa。

#include<iostream>#include<cstdio>#include<string>using namespace std;char to20[][20]={"zero", "one", "two", "three", "four", "five", "six","seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen", "twenty"};char to100[][20]={"thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"};char tran[][20]={"hundred", "thousand", "million"};char st[10000];char ex[100][20];int find20(char a[]){for(int i=0;i<=20;i++)if(strcmp(a,to20[i])==0)return i;return -1;}int find100(char a[]){for(int i=0;i<7;i++)if(strcmp(a,to100[i])==0)return (i+3)*10;return -1;}int main(){while(gets(st)!=NULL){if(st[0]=='/0')break;bool fu=false;int i,len=strlen(st),cnt=0,j;for(i=0;i<len;i++){j=0;while(st[i]!=' '&&i<len){ex[cnt][j++]=st[i];i++;}ex[cnt++][j++]='/0';}int sum=0,star=0;if(strcmp("negative",ex[0])==0){fu=true;star=1;}for(i=star;i<cnt;i++){int subsum=0;while(i<cnt){if(strcmp(ex[i],"hundred")==0)//遇一百的时候，不用break。{subsum*=100;}if(strcmp(ex[i],"thousand")==0){subsum*=1000;break;}if(strcmp(ex[i],"million")==0){subsum*=1000000;break;}int k=find20(ex[i]);if(k!=-1)subsum+=k;k=find100(ex[i]);if(k!=-1)subsum+=k;i++;}sum+=subsum;}if(fu) sum*=-1;printf("%d/n",sum);}return 0;}