Submission #346041

#	Time	Username	Problem	Language	Result	Execution time	Memory
346041		lLab_	Counting Mushrooms (IOI20_mushrooms)	C++14	Compilation error	0 ms	0 KiB

mushrooms

#include "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;

set<int> A = {0};
set<int> B;
int N;
bool ia[20020];
int cu = 1;

int recur(){
    int ns = A.size()*2;
    int i=0;
    int nA = A.size();
    int S[min(nA*2,N-nA-cu+1)];
    for(auto u:A){
        S[i] = u;
        i+=2;
    }
    i = 1;
    for(int j=cu;j<min(cu+nA,N);++j){
        if(!ia[j]){
            S[i] = j;
            i+=2;
        }
    }
    cu = cu+nA;
    int ty = use_machine(*S);
    if(ty%2 == 1){
        A.insert(ns-1);
        ia[ns-1] = true;
    }
    return ns-((ty+1)/2)-nA;
}

int count_mushrooms(int n) {
	N = n;
	ia[0] = true;

	int sum = 1;
	while(cu < n){
        sum += recur();
	}

	return sum;
}

Compilation message (stderr)

mushrooms.cpp: In function 'int recur()':
mushrooms.cpp:28:26: error: could not convert '*(int*)(& S)' from 'int' to 'std::vector<int>'
   28 |     int ty = use_machine(*S);
      |                          ^~
      |                          |
      |                          int