poj2685

简单题

#include <iostream>
#include <cstdlib>
#include <cstring>
#include <cstdio>
using namespace std;

#define maxl 20

char st1[maxl], st2[maxl];

int getd(char *st, char a)
{
    int len = strlen(st);
    int x = -1;
    for (int i = 0; i < len; i++)
        if (st[i] == a)
        {
            x = i;
            break;
        }
    if (x == -1)
        return 0;
    if (x == 0 || st[x - 1] > '9' || st[x - 1] < '0')
        return 1;
    return st[x - 1] - '0';
}

int cal(char *st)
{
    int ans = 0;
    ans += getd(st, 'm') * 1000;
    ans += getd(st, 'c') * 100;
    ans += getd(st, 'x') * 10;
    ans += getd(st, 'i');
    return ans;
}

void print(int a)
{
    int b = a / 1000;
    if (b > 1)
        putchar('0' + b);
    if (b != 0)
        putchar('m');
    b = a / 100 % 10;
    if (b > 1)
        putchar('0' + b);
    if (b != 0)
        putchar('c');
    b = a / 10 % 10;
    if (b > 1)
        putchar('0' + b);
    if (b != 0)
        putchar('x');
    b = a % 10;
    if (b > 1)
        putchar('0' + b);
    if (b != 0)
        putchar('i');
    putchar('\n');
}

int main()
{
    //freopen("t.txt", "r", stdin);
    int t;
    scanf("%d", &t);
    while (t--)
    {
        scanf("%s%s", st1, st2);
        int a = cal(st1);
        int b = cal(st2);
        print(a + b);
    }
    return 0;
}