hdu 4690 EBCDIC

还有什么好说的呢？打表题= =

#include<cstdio>
#include<cstring>
#include<algorithm>
#include<map>
using namespace std;

#define MP make_pair

map < pair <char,char>,pair<char,char> > mm;

void init()
{
    mm[MP('0','0')] = MP('0','0');mm[MP('0','1')] = MP('0','1');mm[MP('0','2')] = MP('0','2');mm[MP('0','3')] = MP('0','3');
    mm[MP('3','7')] = MP('0','4');mm[MP('2','D')] = MP('0','5');mm[MP('2','E')] = MP('0','6');mm[MP('2','F')] = MP('0','7');
    mm[MP('1','6')] = MP('0','8');mm[MP('0','5')] = MP('0','9');mm[MP('2','5')] = MP('0','A');mm[MP('0','B')] = MP('0','B');
    mm[MP('0','C')] = MP('0','C');mm[MP('0','D')] = MP('0','D');mm[MP('0','E')] = MP('0','E');mm[MP('0','F')] = MP('0','F');

    for(int i = '0';i<='3';i++) 
            mm[MP('1',i)] = MP('1',i);
    mm[MP('3','C')] = MP('1','4');mm[MP('3','D')] = MP('1','5');mm[MP('3','2')] = MP('1','6');mm[MP('2','6')] = MP('1','7');
    mm[MP('1','8')] = MP('1','8');mm[MP('1','9')] = MP('1','9');mm[MP('3','F')] = MP('1','A');mm[MP('2','7')] = MP('1','B');
    for(int i = 'C';i<='F';i++) 
            mm[MP('1',i)] = MP('1',i);

    mm[MP('4','0')] = MP('2','0');mm[MP('5','A')] = MP('2','1');mm[MP('7','F')] = MP('2','2');mm[MP('7','B')] = MP('2','3');
    mm[MP('5','B')] = MP('2','4');mm[MP('6','C')] = MP('2','5');mm[MP('5','0')] = MP('2','6');mm[MP('7','D')] = MP('2','7');
    mm[MP('4','D')] = MP('2','8');mm[MP('5','D')] = MP('2','9');mm[MP('5','C')] = MP('2','A');mm[MP('4','E')] = MP('2','B');
    mm[MP('6','B')] = MP('2','C');mm[MP('6','0')] = MP('2','D');mm[MP('4','B')] = MP('2','E');mm[MP('6','1')] = MP('2','F');

    for(int i = '0';i<='9';i++) 
        mm[MP('F',i)] = MP('3',i);
    mm[MP('7','A')] = MP('3','A');mm[MP('5','E')] = MP('3','B');mm[MP('4','C')] = MP('3','C');mm[MP('7','E')] = MP('3','D');
    mm[MP('6','E')] = MP('3','E');mm[MP('6','F')] = MP('3','F');

    mm[MP('7','C')] = MP('4','0');
    for(int i = '1',j = '1';j<='9';j++,i++)
        mm[MP('C',i)] = MP('4',j);
    for(int i = '1',j = 'A';j<='F';i++,j++)
        mm[MP('D',i)] = MP('4',j);

    for(int i = '7',j = '0';j<='2';i++,j++)
        mm[MP('D',i)] = MP('5',j);
    for(int i = '2',j = '3';j<='9';i++,j++)
        mm[MP('E',i)] = MP('5',j);
    mm[MP('E','9')] = MP('5','A');mm[MP('B','A')] = MP('5','B');mm[MP('E','0')] = MP('5','C');mm[MP('B','B')] = MP('5','D');
    mm[MP('B','0')] = MP('5','E');mm[MP('6','D')] = MP('5','F');

    mm[MP('7','9')] = MP('6','0');
    for(int i = '1',j = '1';i<='9';i++,j++)
        mm[MP('8',i)] = MP('6',j);
    for(int i = '1', j = 'A';j<='F';i++,j++)
        mm[MP('9',i)] = MP('6',j);

    for(int i = '7',j = '0';j<='2';i++,j++)
        mm[MP('9',i)] = MP('7',j);
    for(int i = '2',j = '3';j<='9';i++,j++)
        mm[MP('A',i)] = MP('7',j);
    mm[MP('A','9')] = MP('7','A');mm[MP('C','0')] = MP('7','B');mm[MP('4','F')] = MP('7','C');mm[MP('D','0')] = MP('7','D');
    mm[MP('A','1')] = MP('7','E');mm[MP('0','7')] = MP('7','F');
}

const int MAXN = 11111111;

char str[MAXN];

int main()
{
    init();
    while(~scanf("%s",str))
    {
        int len = strlen(str);
        for(int i = 0;i<len;i += 2)
        {
            if(mm.find(MP(str[i],str[i+1]))!=mm.end())
                printf("%c%c",mm[MP(str[i],str[i+1])].first,mm[MP(str[i],str[i+1])].second);
        }

        puts("");
    }
    return 0;
}