poj3445

简单题

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

string st[16];
int length[16];
char a[6000000];

int getid(char *a)
{
 int len = strlen(a);
 for (int i = 0; i <= 15; i++)
 if (len == length[i])
 return i;
 return -1;
}

int main()
{
 //freopen("t.txt", "r", stdin);
 st[0] = "{}";
 length[0] = 2;
 for (int i = 1; i <= 15; i++)
 {
 st[i] = "{" + st[0];
 for (int j = 1; j < i; j++)
 st[i] += "," + st[j];
 st[i] += "}";
 length[i] = st[i].length();
 }
 int t;
 scanf("%d", &t);
 while (t--)
 {
 scanf("%s", a);
 int x = getid(a);
 scanf("%s", a);
 int y = getid(a);
 cout << st[x + y] << endl;
 }
 return 0;
}