| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 537452 | surgutti | Worm Worries (BOI18_worm) | C++14 | 0 ms | 0 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.
#pragma GCC optimize ("Ofast,inline,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
int N, M, K, Q;
vector<int> p{0, 1, 2};
vector<vector<vector<int>>> safe;
int get(vector<int> pos, bool print = false) {
vector<int> xyz(3);
for (int i = 0; i < 3; i++) {
xyz[p[i]] = pos[i];
}
int x = xyz[0];
int y = xyz[1];
int z = xyz[2];
if (print) {
cout << "! " << x << ' ' << y << ' ' << z << endl;
return -1;
}
if (!safe[x][y][z]) {
cout << "? " << x << ' ' << y << ' ' << z << endl;
cin >> safe[x][y][z];
}
return safe[x][y][z];
}
int main() {
// ios::sync_with_stdio(false), cin.tie(nullptr);
cin >> N >> M >> K >> Q;
safe.resize(N + 1, vector(M + 1, vector<int>(K + 1)));
vector<pair<int, int>> a = {{1, N}, {1, M}, {1, K}};
while (true) {
sort(p.begin(), p.end(), [&a](int i, int j) {
return a[i].second - a[i].first > a[j].second - a[j].first;
});
int max_val = -1;
vector<int> max_pos;
if (a[p[0]].second - a[p[0]].first <= 2) {
for (int i = a[p[0]].first; i <= a[p[0]].second; i++) {
for (int j = a[p[1]].first; j <= a[p[1]].second; j++) {
for (int k = a[p[2]].first; k <= a[p[2]].second; k++) {
int cur_val = get({i, j, k});
if (cur_val > max_val) {
max_val = cur_val;
max_pos = {i, j, k};
}
}
}
}
get(max_pos, true);
return 0;
}
int m = (a[p[0]].first + a[p[0]].second) >> 1;
for (int i = a[p[1]].first; i <= a[p[1]].second; i++) {
for (int j = a[p[2]].first; j <= a[p[2]].second; j++) {
int cur_val = get({m, i, j});
if (cur_val > max_val) {
max_val = cur_val;
max_pos = {m, i, j};
}
}
}
vector<int> L_pos = max_pos;
vector<int> R_pos = max_pos;
L_pos[0]--;
R_pos[0]++;
if (get(L_pos) < get(R_pos)) {
a[p[0]].first = m;
}
else {
a[p[0]].second = m;
}
}
}