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Submission #713940

# Submission time Handle Problem Language Result Execution time Memory
713940 2023-03-23T09:38:48 Z stevancv Ice Hockey World Championship (CEOI15_bobek) C++14
100 / 100
 438 ms 8656 KB 
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 1e5 + 2;
const int M = 1e7 + 2;
const int inf = 1e9;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n;
    ll m;
    cin >> n >> m;
    vector<ll> a, b;
    for (int i = 0; i < n; i++) {
        ll x; cin >> x;
        if (i < n / 2) a.push_back(x);
        else b.push_back(x);
    }
    vector<ll> v;
    int sza = a.size();
    for (int mask = 0; mask < (1 << sza); mask++) {
        ll sum = 0;
        for (int i = 0; i < sza; i++) {
            if ((1 << i) & mask) sum += a[i];
        }
        v.push_back(sum);
    }
    sort(v.begin(), v.end());
    int szb = b.size();
    ll ans = 0;
    for (int mask = 0; mask < (1 << szb); mask++) {
        ll sum = 0;
        for (int i = 0; i < szb; i++) {
            if ((1 << i) & mask) sum += b[i];
        }
        ans += (int)(upper_bound(v.begin(), v.end(), m - sum) - v.begin());
    }
    cout << ans << en;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 316 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 324 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 856 KB Output is correct
2 Correct 89 ms 2620 KB Output is correct
3 Correct 438 ms 8612 KB Output is correct
4 Correct 89 ms 2400 KB Output is correct
5 Correct 14 ms 984 KB Output is correct
6 Correct 7 ms 708 KB Output is correct
7 Correct 13 ms 856 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 1492 KB Output is correct
2 Correct 33 ms 984 KB Output is correct
3 Correct 174 ms 4556 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 7 ms 644 KB Output is correct
6 Correct 13 ms 856 KB Output is correct
7 Correct 13 ms 856 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 1472 KB Output is correct
2 Correct 147 ms 2512 KB Output is correct
3 Correct 149 ms 2512 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 82 ms 2512 KB Output is correct
6 Correct 241 ms 8640 KB Output is correct
7 Correct 76 ms 2512 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 321 ms 4556 KB Output is correct
2 Correct 30 ms 964 KB Output is correct
3 Correct 9 ms 600 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 9 ms 600 KB Output is correct
6 Correct 150 ms 4508 KB Output is correct
7 Correct 15 ms 984 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 856 KB Output is correct
2 Correct 86 ms 2516 KB Output is correct
3 Correct 8 ms 600 KB Output is correct
4 Correct 9 ms 728 KB Output is correct
5 Correct 100 ms 2512 KB Output is correct
6 Correct 18 ms 856 KB Output is correct
7 Correct 233 ms 8656 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 355 ms 8656 KB Output is correct
2 Correct 32 ms 984 KB Output is correct
3 Correct 10 ms 600 KB Output is correct
4 Correct 433 ms 8628 KB Output is correct
5 Correct 120 ms 4496 KB Output is correct
6 Correct 15 ms 960 KB Output is correct
7 Correct 29 ms 1492 KB Output is correct