Submission #99130

#	Time	Username	Problem	Language	Result	Execution time	Memory
99130		JustasLe	Combo (IOI18_combo)	C++17	10 / 100	86 ms	440 KiB

combo

#include "combo.h";
#include <bits/stdc++.h>
 
using namespace std;
 
string guess_sequence(int N) {
	set<char> X = {'A', 'B', 'X', 'Y'};
	string s = "";
	for (auto it = X.begin(); it != X.end(); it++) {
		int x = press(s + *it);
		if (x != 0) {
			s += *it;
			X.erase(it);
			break; 
		}
	}
	if (s == "") {
		return s;
	}
	int prev = 1;
	bool ok = true;
	while (ok) {
		ok = false;
		int sz = (int) s.size(), c = 0;
		if (sz == N) {
			break;
		}
		for (auto it = X.begin(); it != X.end(); it++, c++) {
			if (c == 2) {
				s += *it;
				ok = true;
				prev++;
			}
			string poss = s + *it;
			int x = press(poss);
			if (x > prev) {
				s = poss;
				ok = true;
				prev = x;
				break;
			}
		}
	}
	return s;
}

Compilation message (stderr)

combo.cpp:1:19: warning: extra tokens at end of #include directive
    1 | #include "combo.h";
      |                   ^

• Subtask 1: 5 / 5
• Subtask 2: 5 / 95