답안 #920850

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
920850	2024-02-03T06:20:07 Z	dwuy	Ice Hockey World Championship (CEOI15_bobek)	C++14	100 / 100	205 ms	16852 KB

bobek

#include <bits/stdc++.h>

#define fastIO ios_base::sync_with_stdio(false); cin.tie(NULL)
#define file(a) freopen(a".inp","r",stdin); freopen(a".out", "w",stdout)
#define fi first
#define se second
#define endl "\n"
#define len(s) int32_t(s.length())
#define MASK(k)(1LL<<(k))
#define TASK ""
#define int long long

using namespace std;

typedef tuple<int, int, int> tpiii;
typedef pair<double, double> pdd;
typedef pair<int, int> pii;
typedef long long ll;

const long long OO = 1e18;
const int MOD = 1e9 + 7;
const int INF = 1e9;
const int MX = 41;

int n, m;
int a[MX];
int f1[MASK(20) + 5];
int f2[MASK(20) + 5];

void nhap(){
    cin >> n >> m;
    for(int i=1; i<=n; i++) cin >> a[i];
}

void solve(){
    int mid = n>>1;
    int id1, id2; id1 = id2 = 0;
    
    for(int mask=0; mask<MASK(mid); mask++){
        id1++;
        for(int f=mask; f; f-=-f&f){
            int i = __lg(-f&f) + 1;
            f1[id1] += a[i];
        }
    }       

    for(int mask=0; mask<MASK(n - mid); mask++){
        id2++;
        for(int f=mask; f; f-=-f&f){
            int i = __lg(-f&f) + mid + 1;
            f2[id2] += a[i];
        }
    }

    sort(f1+1, f1+id1+1);
    sort(f2+1, f2+id2+1);

    int ans = 0;

    for(int i=1; i<=id1; i++){
        while(id2 >= 1 && f1[i] + f2[id2] > m) id2--;
        ans += f1[i] + f2[id2] <= m? id2 : 0;
    }

    cout << ans;
}

int32_t main(){
    fastIO;
    // file(TASK);

    nhap();
    solve();

    return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	344 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	792 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct

Subtask #5
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	1884 KB	Output is correct
2	Correct	49 ms	4548 KB	Output is correct
3	Correct	203 ms	16708 KB	Output is correct
4	Correct	45 ms	4440 KB	Output is correct
5	Correct	7 ms	1368 KB	Output is correct
6	Correct	5 ms	860 KB	Output is correct
7	Correct	10 ms	1368 KB	Output is correct

Subtask #6
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	2392 KB	Output is correct
2	Correct	16 ms	2000 KB	Output is correct
3	Correct	75 ms	8540 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	3 ms	860 KB	Output is correct
6	Correct	10 ms	1336 KB	Output is correct
7	Correct	10 ms	1372 KB	Output is correct

Subtask #7
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	33 ms	3420 KB	Output is correct
2	Correct	72 ms	6492 KB	Output is correct
3	Correct	69 ms	6516 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	36 ms	6488 KB	Output is correct
6	Correct	161 ms	16728 KB	Output is correct
7	Correct	68 ms	6492 KB	Output is correct

Subtask #8
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	146 ms	12628 KB	Output is correct
2	Correct	16 ms	1880 KB	Output is correct
3	Correct	5 ms	860 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	3 ms	860 KB	Output is correct
6	Correct	148 ms	12876 KB	Output is correct
7	Correct	10 ms	1368 KB	Output is correct

Subtask #9
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	1884 KB	Output is correct
2	Correct	45 ms	4444 KB	Output is correct
3	Correct	5 ms	860 KB	Output is correct
4	Correct	6 ms	988 KB	Output is correct
5	Correct	41 ms	6452 KB	Output is correct
6	Correct	16 ms	1884 KB	Output is correct
7	Correct	190 ms	16724 KB	Output is correct

Subtask #10
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	16692 KB	Output is correct
2	Correct	16 ms	1880 KB	Output is correct
3	Correct	5 ms	856 KB	Output is correct
4	Correct	205 ms	16852 KB	Output is correct
5	Correct	54 ms	8528 KB	Output is correct
6	Correct	10 ms	1372 KB	Output is correct
7	Correct	21 ms	2524 KB	Output is correct

답안 #920850

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