oj.uz

Submission #99911

# Submission time Handle Problem Language Result Execution time Memory
99911 2019-03-08T16:17:48 Z aer0park Taxis (POI13_tak) C++14
20 / 100
 169 ms 10576 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
 
ll n,m,d,anw=1,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());
	id=lower_bound(x.begin(),x.end(),m-d)-x.begin();
	if(id==n)
	{
		cout<<0;
		return 0;
	}
	if(m==d)
		anw=0,id=-1;
	// find x try to be exact
	ll i=n-1;
	while(sum<d&&i>=0)
	{
		if(i==id)
		{
			i--;
			continue;
		}
		if(x[i]-d+sum>0)
			sum+=x[i]-max((ll)0,(d-sum)),anw++;
		i--;
	}
	if(sum<d)
	{
		cout<<0;
		return 0;
	}
	cout<<anw;
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Incorrect 4 ms 384 KB Output isn't correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 512 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 1024 KB Output is correct
2 Correct 7 ms 1024 KB Output is correct

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 1532 KB Output is correct
2 Incorrect 19 ms 1532 KB Output isn't correct

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 1532 KB Output is correct
2 Incorrect 64 ms 2584 KB Output isn't correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 88 ms 4640 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 169 ms 4644 KB Output is correct
2 Incorrect 135 ms 10576 KB Output isn't correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 132 ms 4644 KB Output is correct
2 Incorrect 160 ms 4572 KB Output isn't correct