Submission #100138

#	Time	Username	Problem	Language	Result	Execution time	Memory
100138		aer0park	Taxis (POI13_tak)	C++14	100 / 100	262 ms	4624 KiB

tak

#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
 
ll n,m,d,anw,sum,id;
vector<ll> x;
 
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	cin>>m>>d>>n;
	for(int i=0;i<n;i++)
	{
		ll a;cin>>a;
		x.emplace_back(a);
	}	
	sort(x.begin(),x.end());
	ll i=n-1;
	while(sum<m&&i>=0)
	{
		if(x[i]-abs(d-sum)>0)
			sum+=x[i]-abs(d-sum),anw++;
		i--;
	}
	if(sum>=m)
	{
		cout<<anw;
		return 0;
	}
	id=lower_bound(x.begin(),x.end(),m-d)-x.begin();
	if(id==n)
	{
		cout<<0;
		return 0;
	}
	i=n-1,sum=0,anw=1;
	while(sum<d&&i>=0)
	{
		if(i==id)
		{
			i--;
			continue;
		}
		if(x[i]-abs(d-sum)>0)
			sum+=x[i]-abs(d-sum),anw++;
		i--;
	}
	if(sum<d)
	{
		if(sum+x[id]-abs(d-sum)>=m)
			cout<<anw;
		else
			cout<<0;
	}
	else
		cout<<anw;
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10