OJ-Problems-Source/HDOJ/1315_autoAC.cpp

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2016-08-13 23:51:27 +08:00
#include<stdio.h>
char s[100];
int pd(double p,int i)
{
int j;
double g=0;
if(p<2||p>16) return 0;
if(s[i]=='#') return 0;
for(j=i;s[j]!='\0';j++)
{
if(s[j]=='#') break;
if(p>10&&(s[j]<'0'||(s[j]>'9'&&s[j]<'a')||s[j]>'a'+p-11)) return 0;
if(p<=10&&!(s[j]>='0'&&s[j]<='0'+p-1)) return 0;
if(s[j]>='a'&&s[j]<='f') g=g*p+10+s[j]-'a';
else g=g*p+s[j]-'0';
}
if(s[j]=='#'&&s[j+1]=='\0'||s[j]=='#'&&s[j+1]=='#'&&pd(g,j+2))
return 1;
else return 0;
}
int main()
{
int t,j;
double p;
scanf("%d",&t);
while(t--)
{
scanf("%s",s);
p=0;
for(j=0;;j++)
{
if(s[j]>='0'&&s[j]<='9')
p=p*10+s[j]-'0';
else break;
}
if(s[j]=='#'&&pd(p,j+1)||p==0&&s[j]=='\0') printf("yes\n");
else printf("no\n");
}
return 0;
}