답안 #40670 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
40670	2018-02-06T17:39:19 Z	MatheusLealV	Ice Hockey World Championship (CEOI15_bobek)	C++14	100 / 100	619 ms	17596 KB

bobek

#include <bits/stdc++.h>
#define N 41
using namespace std;
typedef long long ll;

ll n, v[N], ans, k;

vector<ll> val;

int main()
{
	ios::sync_with_stdio(false); cin.tie(0);

	cin>>n>>k;

	for(int i = 0; i < n; i++) cin>>v[i];

    int m = n/2;

    for(int mask = 1; mask <= ( (1<<(m + 1)) - 1) ; mask ++)
    {
        ll sum = 0;

        for(int i = 0; i <= m; i++)
        {
            if( (mask & (1<<i)) )
            {
                sum += v[i];
            }
        }

        if(sum <= k) ans ++;

        val.push_back(sum);
    }

    sort(val.begin(), val.end());

    for(int mask = 1; mask <= ( (1<<(n - m - 1)) - 1) ; mask ++)
    {
    	ll sum = 0;

        for(int i = m + 1; i < n; i++)
        {
            int j = i - m - 1;

        	if( (mask & (1<<j)) )
        	{
        		sum += v[i];
        	}
        }

       if(sum <= k)
       {
       		//cout<<sum<<" "<< (upper_bound(val.begin(), val.end(), k - sum) - val.begin())<<"\n";
       		ans += upper_bound(val.begin(), val.end(), k - sum) - val.begin() + 1;
       }
    }

    cout<<ans + 1<<"\n";
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	248 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	356 KB	Output is correct
2	Correct	2 ms	592 KB	Output is correct
3	Correct	2 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	1 ms	628 KB	Output is correct
6	Correct	2 ms	652 KB	Output is correct
7	Correct	2 ms	820 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	820 KB	Output is correct
2	Correct	1 ms	820 KB	Output is correct
3	Correct	1 ms	836 KB	Output is correct
4	Correct	1 ms	836 KB	Output is correct
5	Correct	1 ms	836 KB	Output is correct
6	Correct	2 ms	836 KB	Output is correct
7	Correct	2 ms	836 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	836 KB	Output is correct
2	Correct	2 ms	836 KB	Output is correct
3	Correct	1 ms	836 KB	Output is correct
4	Correct	1 ms	836 KB	Output is correct
5	Correct	2 ms	836 KB	Output is correct
6	Correct	1 ms	836 KB	Output is correct
7	Correct	2 ms	836 KB	Output is correct

Subtask #5
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	1952 KB	Output is correct
2	Correct	141 ms	4976 KB	Output is correct
3	Correct	599 ms	17292 KB	Output is correct
4	Correct	141 ms	17292 KB	Output is correct
5	Correct	22 ms	17292 KB	Output is correct
6	Correct	13 ms	17292 KB	Output is correct
7	Correct	24 ms	17292 KB	Output is correct

Subtask #6
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	59 ms	17292 KB	Output is correct
2	Correct	38 ms	17292 KB	Output is correct
3	Correct	268 ms	17292 KB	Output is correct
4	Correct	1 ms	17292 KB	Output is correct
5	Correct	11 ms	17292 KB	Output is correct
6	Correct	26 ms	17292 KB	Output is correct
7	Correct	25 ms	17292 KB	Output is correct

Subtask #7
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	82 ms	17292 KB	Output is correct
2	Correct	182 ms	17292 KB	Output is correct
3	Correct	167 ms	17292 KB	Output is correct
4	Correct	2 ms	17292 KB	Output is correct
5	Correct	99 ms	17292 KB	Output is correct
6	Correct	439 ms	17596 KB	Output is correct
7	Correct	117 ms	17596 KB	Output is correct

Subtask #8
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	366 ms	17596 KB	Output is correct
2	Correct	38 ms	17596 KB	Output is correct
3	Correct	16 ms	17596 KB	Output is correct
4	Correct	1 ms	17596 KB	Output is correct
5	Correct	13 ms	17596 KB	Output is correct
6	Correct	259 ms	17596 KB	Output is correct
7	Correct	24 ms	17596 KB	Output is correct

Subtask #9
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	37 ms	17596 KB	Output is correct
2	Correct	132 ms	17596 KB	Output is correct
3	Correct	14 ms	17596 KB	Output is correct
4	Correct	14 ms	17596 KB	Output is correct
5	Correct	126 ms	17596 KB	Output is correct
6	Correct	30 ms	17596 KB	Output is correct
7	Correct	441 ms	17596 KB	Output is correct

Subtask #10
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	579 ms	17596 KB	Output is correct
2	Correct	39 ms	17596 KB	Output is correct
3	Correct	17 ms	17596 KB	Output is correct
4	Correct	619 ms	17596 KB	Output is correct
5	Correct	188 ms	17596 KB	Output is correct
6	Correct	26 ms	17596 KB	Output is correct
7	Correct	49 ms	17596 KB	Output is correct

답안 #40670

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