Submission #399096

#	Time	Username	Problem	Language	Result	Execution time	Memory
399096		Antekb	Counting Mushrooms (IOI20_mushrooms)	C++14	Compilation error	0 ms	0 KiB

mushrooms

#include "mushrooms.h"
#include<bits/stdc++.h>
#define st first
#define nd second
#define pb(x) push_back(x)
using namespace std;
int count_mushrooms(int n) {
	vector<int> A, B, C(n-1);
	A.pb(0);
	iota(C.begin(), C.end(), 1);
	int k=400;
	for(int i=0; i<k && size(C); i++){
		int c1 = use_machine({0, C.back()});
		if(c1==1)B.pb(C.back());
		else A.pb(C.back());
		C.pop_back();
	}
	bool swa=0;
	if(A.size()<B.size()){
		swap(A, B);
		swa=1;
	}
	int a=size(A),b=size(B);
	while(C.size()){
		int t=min(A.size(), C.size());
		vector<int> V;
		for(int i=0; i<t; i++){
			V.pb(A[i]);
			V.pb(C.back());
			C.pop_back();
		}
		int c=use_machine(V);
		b+=(c+1)/2;
		a+=t-(c+1)/2;
	}
	if(swa)swap(a, b);
	return a;
}

Compilation message (stderr)

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:12:22: error: 'size' was not declared in this scope; did you mean 'dysize'?
   12 |  for(int i=0; i<k && size(C); i++){
      |                      ^~~~
      |                      dysize
mushrooms.cpp:23:8: error: 'size' was not declared in this scope; did you mean 'dysize'?
   23 |  int a=size(A),b=size(B);
      |        ^~~~
      |        dysize
mushrooms.cpp:33:3: error: 'b' was not declared in this scope
   33 |   b+=(c+1)/2;
      |   ^
mushrooms.cpp:36:17: error: 'b' was not declared in this scope
   36 |  if(swa)swap(a, b);
      |                 ^