Time Limit: 8000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 16641 Accepted Submission(s): 3916
#include<iostream>
#include<algorithm>
#include<cstring>
#include<string>
#include<map>
using namespace std;
typedef unsigned long long ll;
long long seed = 9731;
char s[40];
struct Hash
{
ll num;
string s;
bool operator<(const Hash x)const
{
return x.num<num;
}
}a[100086],b[100086],exa;
int main()
{
string pos,pre;
char c;
int nn=0;
while(true){
scanf("%c",&c);
if(c==‘@‘){break;}
if(c!=‘[‘){continue;}
ll ss=seed,num=0;
pre.clear();
while(true){
scanf("%c",&c);
if(c==‘]‘){break;}
num+=c*ss;pre.push_back(c);
ss*=ss;
}
getchar();
getline(cin,pos);
a[nn].num=num;
a[nn].s=pos;
int l=pos.length();
ss=seed,num=0;
for(int i=0;i<l;i++){
num+=pos[i]*ss;
ss*=ss;
}
b[nn].num=num;
b[nn].s=pre;
nn++;
}
scanf("%s",s);
int q;
scanf("%d",&q);
sort(a,a+nn);
sort(b,b+nn);
getchar();
while(q--){
getline(cin,pos);
ll num=0,ss=seed;
int l=pos.length();
if(pos[0]==‘[‘){
for(int i=1;i<l-1;i++){
num+=ss*pos[i];
ss*=ss;
}
int y;
exa.num=num;//cout<<num<<endl;
y=lower_bound(a,a+nn,exa)-a;
if(a[y].num!=num){cout<<"what?"<<endl;}
else cout<<a[y].s<<endl;
}
else{
for(int i=0;i<l;i++){
num+=ss*pos[i];
ss*=ss;
}
int y;
exa.num=num;
y=lower_bound(b,b+nn,exa)-b;
if(b[y].num!=num){cout<<"what?"<<endl;}
else cout<<b[y].s<<endl;
}
}
}
原文:https://www.cnblogs.com/ZGQblogs/p/9448618.html