Submission #271811

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
2718112020-08-18 07:36:24SeDunionCombo (IOI18_combo)C++14
100 / 100
41 ms564 KiB
#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string guess_sequence (int N) {
string X = "X";
string Y = "Y";
string A = "A";
string B = "B";
string s, r(3, '-');
if (press (X + Y)) {
if (press(X)) s += X, r = A + B + Y;
else s += Y, r = A + B + X;
} else {
if (press(A)) s += A, r = B + X + Y;
else s += B, r = A + X + Y;
}
if (N == 1) return s;
for (int i = 1 ; i < N - 1 ; ++ i) {
string cur = s + r[0] + s + r[1] + r[0] + s + r[1] + r[1] + s + r[1] + r[2];
int p = press (cur);
if (p == i) {
s += r[2];
} else if (p == i + 1) {
s += r[0];
} else if (p == i + 2) {
s += r[1];
 
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