oj.uz

Submission #251369

# Submission time Handle Problem Language Result Execution time Memory
251369 2020-07-21T04:24:18 Z jamielim Password (RMI18_password) C++14
10 / 100
 3000 ms 387192 KB 
// 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

map<string,int> ma;
int qry(string q){
	if(ma.find(q)!=ma.end())return ma[q];
	return ma[q]=query(q);
}

string join(string a,string b){
	int la=a.length(),lb=b.length();
	string ans=a;
	int idx=0;
	for(int i=0;i<lb;i++){
		while(true){
			string q="";
			for(int j=0;j<idx;j++){
				q.pb(ans[j]);
			}
			q.pb(b[i]);
			for(int j=idx;j<(int)ans.size();j++){
				q.pb(ans[j]);
			}
			if(qry(q)==(int)q.size()){
				ans=q;
				break;
			}else{
				idx++;
			}
		}
	}
	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];
	int sum=0;
	for(int i=0;i<s-1;i++){
		string q="";
		for(int j=0;j<n;j++)q.pb(i+'a');
		occ[i]=qry(q);
		q="";
		for(int j=0;j<occ[i];j++)q.pb(i+'a');
		if(occ[i]>0)pq.push(mp(occ[i],q));
		sum+=occ[i];
	}
	occ[s-1]=n-sum;
	string q="";for(int j=0;j<occ[s-1];j++)q.pb(s-1+'a');if(occ[s-1]>0)pq.push(mp(occ[s-1],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;
}

Compilation message

password.cpp: In function 'std::__cxx11::string join(std::__cxx11::string, std::__cxx11::string)':
password.cpp:26:6: warning: unused variable 'la' [-Wunused-variable]
  int la=a.length(),lb=b.length();
      ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Guessed the password with 78 queries.
2 Correct 2 ms 384 KB Guessed the password with 156 queries.

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Guessed the password with 47 queries.
2 Correct 4 ms 384 KB Guessed the password with 92 queries.
3 Correct 2 ms 384 KB Guessed the password with 90 queries.
4 Execution timed out 3084 ms 361692 KB Time limit exceeded

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3110 ms 387192 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Guessed the password with 78 queries.
2 Correct 2 ms 384 KB Guessed the password with 156 queries.
3 Correct 1 ms 256 KB Guessed the password with 47 queries.
4 Correct 4 ms 384 KB Guessed the password with 92 queries.
5 Correct 2 ms 384 KB Guessed the password with 90 queries.
6 Execution timed out 3084 ms 361692 KB Time limit exceeded

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Guessed the password with 78 queries.
2 Correct 2 ms 384 KB Guessed the password with 156 queries.
3 Correct 1 ms 256 KB Guessed the password with 47 queries.
4 Correct 4 ms 384 KB Guessed the password with 92 queries.
5 Correct 2 ms 384 KB Guessed the password with 90 queries.
6 Execution timed out 3084 ms 361692 KB Time limit exceeded