Submission #308524

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
308524	2020-10-01 13:14:57	CodePlatina	Counting Mushrooms (IOI20_mushrooms)	C++14	100 / 100	11 ms	576 KiB

mushrooms

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#include "mushrooms.h"
#include <vector>
using namespace std;
const int K = 100;
int count_mushrooms(int n)
{
    if(n <= 453)
    {
        int ret = 1;
        for(int i = 1; i < n; i += 2)
        {
            if(i == n - 1) ret += 1 - use_machine({0, i});
            else ret += 2 - use_machine({i, 0, i + 1});
        }
        return ret;
    }
    else
    {
        int ret = 0;
        vector<int> A, B, C, D, E;
        A.push_back(0);
        for(int i = 1; i < n; ++i) C.push_back(i);
        while(A.size() < K && B.size() < K && A.size() + B.size() + D.size() < 2 * K - 1)
        {
            if(A.size() >= 3)
            {
                int x = C.back(); C.pop_back();
 
 
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• Subtask 1: 100 / 100