Submission #424213

#	Time	Username	Problem	Language	Result	Execution time	Memory
424213		chirathnirodha	Counting Mushrooms (IOI20_mushrooms)	C++17	0 / 100	2 ms	200 KiB

mushrooms

//Coded by Chirath Nirodha
#include "mushrooms.h"
#include<bits/stdc++.h>
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define P push
#define I insert
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
using namespace std;
const ll mod=1e9+7;
int count_mushrooms(int n) {
	vector<int> a,b;
	a.push_back(0);
	vector<int> m;
	m.PB(0);m.PB(1);
	for(int i=1;i<min(n,100);i++){
		m[1]=i;
		int x=use_machine(m);
		if(x==0)a.PB(i);
		else b.PB(i);
	}
	int ans=a.size();
	int cur=min(n,100);
	if(a.size()>=b.size()){
		while(cur<n){
			m.clear();
			for(int i=0;i<a.size();i++){
				m.PB(a[i]);
				if(cur==n || i==a.size()-1)break;
				m.PB(cur);
				cur++;
			}
			int x=use_machine(m);
			ans+=a.size()-1-x/2;
		}
	}
	else{
		while(cur<n){
			m.clear();
			for(int i=0;i<b.size();i++){
				m.PB(b[i]);
				if(cur==n || i==b.size()-1)break;
				m.PB(cur);
				cur++;
			}
			int x=use_machine(m);
			ans+=x/2;
		}
	}
	return ans;
}

Compilation message (stderr)

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:31:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |    for(int i=0;i<a.size();i++){
      |                ~^~~~~~~~~
mushrooms.cpp:33:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     if(cur==n || i==a.size()-1)break;
      |                  ~^~~~~~~~~~~~
mushrooms.cpp:44:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |    for(int i=0;i<b.size();i++){
      |                ~^~~~~~~~~
mushrooms.cpp:46:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |     if(cur==n || i==b.size()-1)break;
      |                  ~^~~~~~~~~~~~

• Subtask 1: 0 / 100