# | TimeUTC-0 | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1092385 | huyngo | Combo (IOI18_combo) | C++17 | 22 ms | 1840 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "combo.h"
#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a; i<=b; ++i)
using namespace std;
std::string guess_sequence(int N) {
string T = "ABXY";
std::string S = "";
if (press("AB")) {
if (press("A"))
S = "A", T = "BXY";
else
S = "B", T = "AXY";
}
else {
if (press("X"))
S = "X", T = "ABY";
else
S = "Y", T = "ABX";
}
for (int i = 1; i < N - 1; ++i) {
string p = S + T[0] + T[0] +
S + T[0] + T[1] +
S + T[0] + T[2] +
S + T[1];
int y = press(p);
if (y == i)
S += T[2];
else if (y == i + 1)
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