# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
415817 | SuhaibSawalha1 | Counting Mushrooms (IOI20_mushrooms) | C++17 | 14 ms | 396 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 "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;
int count_mushrooms(int n) {
int ans = 0;
vector<int> a[2], v(n - 1);
iota(v.begin(), v.end(), 1);
a[0] = {0};
for (; (int)a[0].size() < 2 && (int)a[1].size() < 2 && v.size();) {
a[use_machine({0, v.back()})].push_back(v.back());
v.pop_back();
}
int S = 95;
int ind = a[1].size() > 1;
for (; (int)a[0].size() <= S && (int)a[1].size() <= S && v.size() > 1;) {
int res = use_machine({a[ind][0], v[v.size() - 2], a[ind][1], v.back()});
a[(res < 2) ^ (!ind)].push_back(v[v.size() - 2]);
a[(res % 2) ^ (ind)].push_back(v.back());
v.pop_back();
v.pop_back();
}
ans += a[0].size();
while (v.size()) {
int ind = a[0].size() < a[1].size();
int use = min(a[ind].size(), v.size());
vector<int> ask;
for (int i = 0; i < 2 * use; ++i) {
if (i & 1) {
ask.push_back(v.back());
v.pop_back();
}
else {
ask.push_back(a[ind][i / 2]);
}
}
int res = use_machine(ask);
a[ind ^ (res & 1)].push_back(ask.back());
if (ind) {
ans += (res + 1) / 2;
}
else {
ans += use - (res + 1) / 2;
}
}
return ans;
}
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
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