Submission #251366

#	Time	Username	Problem	Language	Result	Execution time	Memory
251366		jamielim	Password (RMI18_password)	C++14	0 / 100	23 ms	384 KiB

password

// Sample grader for contestants' use.
//
// Usage: place your input data in the file password.in in the format
//
// line 1: N S
// line 2: hidden_password
//
// Then compile this grader together with your implementation.
// Run the binary to see your guessing strategy at work!
// Set DEBUG to 1 to print all queries.
#include <bits/stdc++.h>
using namespace std;
int query(string q);
#define fi first
#define se second
#define pb push_back
#define mp make_pair

string join(string a,string b){
	int la=a.length(),lb=b.length();
	string q=b+a;
	string ans;
	int done=0;
	for(int i=0;i<la;i++){
		int ret=query(q);
		int newb=ret-la-done;
		for(int j=done;j<done+newb;j++){
			ans.pb(b[j]);
		}
		ans.pb(a[i]);
		q=ans;
		for(int j=done+newb;j<lb;j++)q.pb(b[j]);
		for(int j=i+1;j<la;j++)q.pb(a[j]);
		done+=newb;
		if(done==lb)break;
	}
	for(int j=done;j<lb;j++)ans.pb(b[j]);
	return ans;
}

string guess(int n, int s){
	priority_queue<pair<int,string>,vector<pair<int,string> >,greater<pair<int,string> > > pq;
	int occ[26];
	for(int i=0;i<s;i++){
		string q="";
		for(int j=0;j<n;j++)q.pb(i+'a');
		occ[i]=query(q);
		q="";
		for(int j=0;j<occ[i];j++)q.pb(i+'a');
		if(occ[i]>0)pq.push(mp(occ[i],q));
	}
	while((int)pq.size()>1){
		pair<int,string> cur1=pq.top();pq.pop();
		pair<int,string> cur2=pq.top();pq.pop();
		pq.push(mp(cur1.fi+cur2.fi,join(cur1.se,cur2.se)));
	}
	return pq.top().se;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 30
• Subtask 5: 0 / 20