HDU 1727 Hastiness

题目链接

题目意思

给你一个不大于四位数的数字，输出它的英文写法。

解题思路

就是一道暴力题。不过很容易出错，要考虑的情况比较多。所以做题的时候得认真一点。

代码部分

#include <iostream>#include <stdio.h>#include <string.h>#include <algorithm>#include <queue>#include <map>using namespace std;map<int, string> M;map<int, string> M1;map<int, string> M2;void init(){    M[1] = "one";    M[2] = "two";    M[3] = "three";    M[4] = "four";    M[5] = "five";    M[6] = "six";    M[7] = "seven";    M[8] = "eight";    M[9] = "nine";    M[0] = "zero";    M1[1] = "ten";    M1[2] = "twenty";    M1[3] = "thirty";    M1[4] = "forty";    M1[5] = "fifty";    M1[6] = "sixty";    M1[7] = "seventy";    M1[8] = "eighty";    M1[9] = "ninety";    M2[0] = "ten";    M2[1] = "eleven";    M2[2] = "twelve";    M2[3] = "thirteen";    M2[4] = "fourteen";    M2[5] = "fifteen";    M2[6] = "sixteen";    M2[7] = "seventeen";    M2[8] = "eighteen";    M2[9] = "nineteen";}int main(){    int t;    while(~scanf("%d",&t))    {        init();        if(t<10)///个位数            cout<<M[t]<<endl;        else if(t>=10&&t<20)///十位数            cout<<M2[t-10]<<endl;        else if(t>=20&&t<100)        {            if(t%10==0)                cout<<M1[t/10]<<endl;            else                cout<<M1[t/10]<<"-"<<M[t%10]<<endl;        }        else if(t>=100&&t<1000)///百位数        {            if(t%100==0)                cout<<M[t/100]<<" hundred"<<endl;            else            {                if(t%100<10)                    cout<<M[t/100]<<" hundred and "<<M[t%100]<<endl;                else if(t%100>=10&&t%100<20)                    cout<<M[t/100]<<" hundred and "<<M2[t%100-10]<<endl;                else                {                    if((t%100)%10==0)                        cout<<M[t/100]<<" hundred and "<<M1[t%100/10]<<endl;                    else                        cout<<M[t/100]<<" hundred and "<<M1[t%100/10]<<"-"<<M[t%100%10]<<endl;                }            }        }        else///千位数        {            if(t%1000==0)                cout<<M[t/1000]<<" thousand"<<endl;            else            {                if(t%1000<10)                    cout<<M[t/1000]<<" thousand and "<<M[t%1000]<<endl;                else if(t%1000>=10&&t%1000<20)                    cout<<M[t/1000]<<" thousand and "<<M2[t%1000-10]<<endl;                else if(t%1000>=20&&t%1000<100)                {                    if((t%1000)%10==0)                        cout<<M[t/1000]<<" thousand and "<<M1[(t%1000)/10]<<endl;                    else                        cout<<M[t/1000]<<" thousand and "<<M1[t%1000/10]<<"-"<<M[t%1000%10]<<endl;                }                else                {                    if((t%1000)%100==0)                        cout<<M[t/1000]<<" thousand and "<<M[t%1000/100]<<" hundred"<<endl;                    else                    {                        if((t%1000)%100<10)                            cout<<M[t/1000]<<" thousand and "<<M[(t%1000)/100]<<" hundred and "<<M[t%1000%100]<<endl;                        else if((t%1000)%100>=10&&(t%1000)%100<20)                             cout<<M[t/1000]<<" thousand and "<<M[(t%1000)/100]<<" hundred and "<<M2[t%1000%100-10]<<endl;                        else                        {                            if(((t%1000)%100)%10==0)                                cout<<M[t/1000]<<" thousand and "<<M[(t%1000)/100]<<" hundred and "<<M1[((t%1000)%100)/10]<<endl;                            else                                cout<<M[t/1000]<<" thousand and "<<M[(t%1000)/100]<<" hundred and "<<M1[((t%1000)%100)/10]<<"-"<<M[((t%1000)%100)%10]<<endl;                        }                    }                }            }        }    }    return 0;}