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답안 #968443

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
968443 2024-04-23T12:30:40 Z vjudge1 Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 233 ms 22732 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll n,m;
ll pr[41];
vector<long long> a={0},b={0};
void solvea(ll curr,ll pos,ll end) {
    if (curr == m) {
        return;
    }
    for (int i=pos+1;i<end;i++) {
        if (curr+pr[i] <= m) {
            a.push_back(curr+pr[i]);
            solvea(curr+pr[i],i,end);
        } else {
            return;
        }
    }
    return;
}
void solveb(ll curr,ll pos,ll end) {
    if (curr == m) {
        return;
    }
    for (int i=pos+1;i<end;i++) {
        if (curr+pr[i] <= m) {
            b.push_back(curr+pr[i]);
            solveb(curr+pr[i],i,end);
        } else {
            return;
        }
    }
    return;
}
int main() {
    cin.tie(0)->sync_with_stdio(false);
    cin >> n >> m;
    for (int i=0;i<n;i++) {
        cin >> pr[i];
        if (pr[i] > m) {
            i--;
            n--;
        }
    }
    sort(pr,pr+n);
    solvea(0,-1,n/2);
    solveb(0,n/2-1,n);
    sort(b.begin(),b.end());
    ll cnt=0;
    n = a.size();
    for (int i=0;i<n;i++) {
        cnt+=upper_bound(b.begin(),b.end(),m-a[i])-b.begin();
    }
    cout << cnt;
    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 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 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 348 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 0 ms 348 KB Output is correct
2 Correct 1 ms 460 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 456 KB Output is correct
6 Correct 0 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 1 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 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 #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 2144 KB Output is correct
2 Correct 49 ms 5588 KB Output is correct
3 Correct 233 ms 22476 KB Output is correct
4 Correct 49 ms 5584 KB Output is correct
5 Correct 5 ms 1752 KB Output is correct
6 Correct 3 ms 988 KB Output is correct
7 Correct 0 ms 544 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 3032 KB Output is correct
2 Correct 17 ms 2144 KB Output is correct
3 Correct 93 ms 11472 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 2 ms 988 KB Output is correct
6 Correct 6 ms 1500 KB Output is correct
7 Correct 1 ms 348 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 3676 KB Output is correct
2 Correct 71 ms 7508 KB Output is correct
3 Correct 70 ms 7508 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 28 ms 8024 KB Output is correct
6 Correct 102 ms 22732 KB Output is correct
7 Correct 0 ms 344 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 153 ms 13908 KB Output is correct
2 Correct 16 ms 1992 KB Output is correct
3 Correct 5 ms 992 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 3 ms 992 KB Output is correct
6 Correct 97 ms 14420 KB Output is correct
7 Correct 0 ms 344 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 2144 KB Output is correct
2 Correct 49 ms 5588 KB Output is correct
3 Correct 5 ms 992 KB Output is correct
4 Correct 5 ms 992 KB Output is correct
5 Correct 27 ms 6848 KB Output is correct
6 Correct 11 ms 2144 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #10
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 205 ms 21708 KB Output is correct
2 Correct 14 ms 2144 KB Output is correct
3 Correct 5 ms 1116 KB Output is correct
4 Correct 214 ms 20940 KB Output is correct
5 Correct 39 ms 12492 KB Output is correct
6 Correct 6 ms 1756 KB Output is correct
7 Correct 0 ms 348 KB Output is correct