OJ-Problems-Source/HDOJ/1501_autoAC.cpp

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#include<stdio.h>
#include<string.h>
int v[205][205];
char a[205],b[205],c[410];
int lena,lenb,lenc;
int dfs(int i,int j,int k)
{
if(c[k]=='\0')
return 1;
if(v[i][j])return 0;
v[i][j]=1;
if(lena<lenc)
if(a[i]==c[k] && dfs(i+1,j,k+1))return 1;
if(lenb<lenc)
if(b[j]==c[k] && dfs(i,j+1,k+1))return 1;
return 0;
}
int main()
{
int t,k;
while(scanf("%d",&t)!=EOF)
{
k=1;
while(k<=t){
scanf("%s%s%s",&a,&b,&c);
lena=strlen(a);
lenb=strlen(b);
lenc=strlen(c);
memset(v,0,sizeof(v));
if(dfs(0,0,0)==1)
printf("Data set %d: yes\n",k);
else
printf("Data set %d: no\n",k);
k++;
}
}
return 0;
}