| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1070360 | 2024-08-22T13:37:19 Z | andrei_iorgulescu | Counting Mushrooms (IOI20_mushrooms) | C++14 | 7 ms | 612 KB |
#include <bits/stdc++.h>
#include "mushrooms.h"
#warning That's not FB, that's my FB
using namespace std;
int count_mushrooms(int n)
{
vector<int> A, B;
A.push_back(0);
if (n <= 227)
{
int ans = 1;
for (int i = 1; i < n; i++)
ans += 1 - use_machine({0,i});
return ans;
}
int hh = use_machine({0,1}), hhh = use_machine({0,2});
if (hh == 0)
A.push_back(1);
else
B.push_back(1);
if (hhh == 0)
A.push_back(2);
else
B.push_back(2);
int a = A.size(), b = B.size();
///caut cel mai bun max(a,b) la care sa ma opresc din spamat
int best, omin = 1e9;
for (int i = 5; i <= 1000 and 2 * i <= n; i++)
{
int cur = i - 1;
int cate = n - 2 * i;
int j = -1;
while (cate > 0)
{
j++;
cur++;
cate -= (i + j / 2);
}
if (cur < omin)
{
omin = cur;
best = i;
}
}
//cout << best << endl;
vector<int> unsolved;
for (int i = 3; i < n; i++)
unsolved.push_back(i);
reverse(unsolved.begin(),unsolved.end());
while (max(a,b) < best)
{
if (a >= 2)
{
vector<int> mac = {unsolved[unsolved.size() - 1], A[0], unsolved[unsolved.size() - 2], A[1]};
int xxx = use_machine(mac);
if (xxx == 0)
{
A.push_back(unsolved.back());
unsolved.pop_back();
A.push_back(unsolved.back());
unsolved.pop_back();
}
else if (xxx == 1)
{
B.push_back(unsolved.back());
unsolved.pop_back();
A.push_back(unsolved.back());
unsolved.pop_back();
}
else if (xxx == 2)
{
A.push_back(unsolved.back());
unsolved.pop_back();
B.push_back(unsolved.back());
unsolved.pop_back();
}
else
{
B.push_back(unsolved.back());
unsolved.pop_back();
B.push_back(unsolved.back());
unsolved.pop_back();
}
}
else
{
vector<int> mac = {unsolved[unsolved.size() - 1], B[0], unsolved[unsolved.size() - 2], B[1]};
int xxx = use_machine(mac);
if (xxx == 0)
{
B.push_back(unsolved.back());
unsolved.pop_back();
B.push_back(unsolved.back());
unsolved.pop_back();
}
else if (xxx == 1)
{
A.push_back(unsolved.back());
unsolved.pop_back();
B.push_back(unsolved.back());
unsolved.pop_back();
}
else if (xxx == 2)
{
B.push_back(unsolved.back());
unsolved.pop_back();
A.push_back(unsolved.back());
unsolved.pop_back();
}
else
{
A.push_back(unsolved.back());
unsolved.pop_back();
A.push_back(unsolved.back());
unsolved.pop_back();
}
}
a = A.size();
b = B.size();
}
int ans = A.size();
while (!unsolved.empty())
{
int k = max(a,b);
vector<int> cr;
for (int i = 0; i < k; i++)
{
if (!unsolved.empty())
{
cr.push_back(unsolved.back());
unsolved.pop_back();
}
}
if (a >= b)
{
vector<int> tq;
for (int i = 0; i < cr.size(); i++)
{
tq.push_back(cr[i]);
tq.push_back(A[i]);
}
int xxx = use_machine(tq);
if (xxx % 2 == 1)
B.push_back(cr[0]), xxx--;
else
A.push_back(cr[0]), ans++;
ans += (2 * ((int)cr.size() - 1) - xxx) / 2;
}
else
{
vector<int> tq;
for (int i = 0; i < cr.size(); i++)
{
tq.push_back(cr[i]);
tq.push_back(B[i]);
}
int xxx = use_machine(tq);
if (xxx % 2 == 1)
A.push_back(cr[0]), ans++, xxx--;
else
B.push_back(cr[0]);
ans += xxx / 2;
}
a = A.size();
b = B.size();
}
return ans;
}
/**
Aflu sa zicem doua A-uri, dau spamez AxAy ca unic determina x si y, candva ma opresc
Sa zicem ca am a A-uri si b B-uri
While (mai am nedescoperite)
{
k = max(a,b);
Bag x1Ax2A...xkA, astfel aflu cate din x sunt A-uri dar aflu si exact cum e x1, il bag in A-uri sau B-uri si dau a++ sau b++
}
Fara ultima optimizare era fix 2sqrt, asa idk, doamne ajuta
**/
Compilation message
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 344 KB | Output is correct |
| 2 | Correct | 1 ms | 344 KB | Output is correct |
| 3 | Correct | 0 ms | 344 KB | Output is correct |
| 4 | Correct | 1 ms | 344 KB | Output is correct |
| 5 | Correct | 2 ms | 344 KB | Output is correct |
| 6 | Correct | 1 ms | 344 KB | Output is correct |
| 7 | Correct | 6 ms | 600 KB | Output is correct |
| 8 | Correct | 3 ms | 600 KB | Output is correct |
| 9 | Correct | 7 ms | 600 KB | Output is correct |
| 10 | Correct | 3 ms | 600 KB | Output is correct |
| 11 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 12 | Correct | 4 ms | 600 KB | Output is correct |
| 13 | Correct | 3 ms | 600 KB | Output is correct |
| 14 | Correct | 2 ms | 548 KB | Output is correct |
| 15 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 16 | Partially correct | 3 ms | 600 KB | Output is partially correct |
| 17 | Correct | 3 ms | 344 KB | Output is correct |
| 18 | Correct | 4 ms | 600 KB | Output is correct |
| 19 | Partially correct | 4 ms | 612 KB | Output is partially correct |
| 20 | Correct | 3 ms | 600 KB | Output is correct |
| 21 | Correct | 4 ms | 600 KB | Output is correct |
| 22 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 23 | Correct | 5 ms | 600 KB | Output is correct |
| 24 | Correct | 3 ms | 548 KB | Output is correct |
| 25 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 26 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 27 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 28 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 29 | Partially correct | 5 ms | 600 KB | Output is partially correct |
| 30 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 31 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 32 | Partially correct | 5 ms | 600 KB | Output is partially correct |
| 33 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 34 | Partially correct | 4 ms | 440 KB | Output is partially correct |
| 35 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 36 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 37 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 38 | Partially correct | 3 ms | 600 KB | Output is partially correct |
| 39 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 40 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 41 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 42 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 43 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 44 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 45 | Partially correct | 5 ms | 600 KB | Output is partially correct |
| 46 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 47 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 48 | Partially correct | 7 ms | 600 KB | Output is partially correct |
| 49 | Partially correct | 5 ms | 600 KB | Output is partially correct |
| 50 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 51 | Partially correct | 3 ms | 600 KB | Output is partially correct |
| 52 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 53 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 54 | Partially correct | 5 ms | 600 KB | Output is partially correct |
| 55 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 56 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 57 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 58 | Partially correct | 3 ms | 600 KB | Output is partially correct |
| 59 | Partially correct | 7 ms | 600 KB | Output is partially correct |
| 60 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 61 | Partially correct | 4 ms | 600 KB | Output is partially correct |
| 62 | Correct | 0 ms | 344 KB | Output is correct |
| 63 | Correct | 0 ms | 344 KB | Output is correct |
| 64 | Correct | 0 ms | 344 KB | Output is correct |
| 65 | Correct | 0 ms | 344 KB | Output is correct |
| 66 | Correct | 1 ms | 344 KB | Output is correct |
| 67 | Correct | 0 ms | 344 KB | Output is correct |
| 68 | Correct | 0 ms | 344 KB | Output is correct |
| 69 | Correct | 0 ms | 344 KB | Output is correct |
| 70 | Correct | 0 ms | 344 KB | Output is correct |
| 71 | Correct | 0 ms | 344 KB | Output is correct |
| 72 | Correct | 0 ms | 344 KB | Output is correct |
| 73 | Correct | 0 ms | 344 KB | Output is correct |
| 74 | Correct | 0 ms | 388 KB | Output is correct |
| 75 | Correct | 0 ms | 344 KB | Output is correct |
| 76 | Correct | 0 ms | 344 KB | Output is correct |
| 77 | Correct | 0 ms | 344 KB | Output is correct |
| 78 | Correct | 1 ms | 344 KB | Output is correct |
| 79 | Correct | 0 ms | 344 KB | Output is correct |
| 80 | Correct | 0 ms | 344 KB | Output is correct |
| 81 | Correct | 0 ms | 344 KB | Output is correct |
| 82 | Correct | 0 ms | 344 KB | Output is correct |
| 83 | Correct | 0 ms | 344 KB | Output is correct |
| 84 | Correct | 0 ms | 344 KB | Output is correct |
| 85 | Correct | 0 ms | 344 KB | Output is correct |
| 86 | Correct | 0 ms | 344 KB | Output is correct |
| 87 | Correct | 0 ms | 344 KB | Output is correct |
| 88 | Correct | 0 ms | 344 KB | Output is correct |
| 89 | Correct | 0 ms | 344 KB | Output is correct |
| 90 | Correct | 0 ms | 344 KB | Output is correct |
| 91 | Correct | 0 ms | 344 KB | Output is correct |