Submission #333883

#	Time	Username	Problem	Language	Result	Execution time	Memory
333883		inwbear	Counting Mushrooms (IOI20_mushrooms)	C++14	10 / 100	257 ms	760 KiB

mushrooms

#include "mushrooms.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define MEM(x,a) memset((x),a,sizeof((x)))
#define F first
#define S second
#define imx INT_MAX
#define X 20000
const long long MOD = (long long)(1e9+7);
const long long MMX = (long long)(1e18);
typedef long long LL;
typedef pair<int,int> pii;

int count_mushrooms(int n)
{
	int k,rr=1,ca=0;
	vector<int>a,b,t;
	a.pb(0);
	for(int i=1;i<n&&i<=X;i++)
	{
		t.clear();
		t.pb(0);
		t.pb(i);
		k=use_machine(t);
		if(k==1)b.pb(i);
		else a.pb(i);
	}
	for(int i=X+1;i<n;i++,rr++)
	{
		if(rr==1)t.clear(),t.pb(b[0]);
		t.pb(i);
		t.pb(b[rr]);
		if(i==n||rr+1==b.size())
		{
			k=use_machine(t);
			rr=0;
			ca+=k/2;
		}
	}
	return a.size()+ca;
}

Compilation message (stderr)

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:35:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |   if(i==n||rr+1==b.size())
      |            ~~~~^~~~~~~~~~

• Subtask 1: 10 / 100