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直接打表吧,一共只有0到15,16个数呢。#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <climits>
using namespace std;
char s[16][100000];
int main()
{
freopen("in.txt","r",stdin);
int i,j,ls,num1,num2,n;
char s1[100000],s2[100000];
strcpy(s[0],"{}");
for(i=1;i<=15;i++)
{
s[i][0]='{';
s[i][1]='\0';
for(j=0;j<i-1;j++)
{
strcat(s[i],s[j]);
ls=strlen(s[i]);
s[i][ls]=',';
s[i][ls+1]='\0';
}
strcat(s[i],s[j]);
ls=strlen(s[i]);
s[i][ls]='}';
s[i][ls+1]='\0';
}
scanf("%d",&n);
while(n--)
{
scanf("%s%s",s1,s2);
for(i=0;i<=15;i++)
{
if(strcmp(s1,s[i])==0)
{
num1=i;
}
if(strcmp(s2,s[i])==0)
{
num2=i;
}
}
num1=num1+num2;
printf("%s\n",s[num1]);
}
return 0;
}
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