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Submission #1005201

# Submission time Handle Problem Language Result Execution time Memory
1005201 2024-06-22T08:44:56 Z Valaki2 Ice Hockey World Championship (CEOI15_bobek) C++14
90 / 100
 192 ms 22452 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define fi first
#define se second

vector<int> do_for(vector<int> v) {
    int n = v.size();
    vector<int> res;
    for(int mask = 0; mask < (1 << n); mask++) {
        int sum = 0;
        for(int i = 0; i < n; i++) {
            sum += ((mask >> i) & 1) * v[i];
        }
        res.pb(sum);
    }
    sort(res.begin(), res.end());
    return res;
}

void solve() {
    int n, m;
    cin >> n >> m;
    vector<int> v(n);
    for(int i = 0; i < n; i++) {
        cin >> v[i];
    }
    if(n == 1) {
        if(v[0] <= m) {
            cout << "1\n";
        } else {
            cout << "0\n";
        }
        return;
    }
    int as = n / 2;
    int bs = n - as;
    vector<int> a = v;
    a.resize(as);
    vector<int> b = v;
    reverse(b.begin(), b.end());
    b.resize(bs);
    reverse(b.begin(), b.end());
    vector<int> x = do_for(a);
    vector<int> y = do_for(b);
    reverse(y.begin(), y.end());
    int ans = 0;
    int idx = 0;
    for(int cur : x) {
        while(idx < y.size() && cur + y[idx] > m) {
            idx++;
        }
        ans += y.size() - idx;
    }
    cout << ans << "\n";
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
}

Compilation message

bobek.cpp: In function 'void solve()':
bobek.cpp:54:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |         while(idx < y.size() && cur + y[idx] > m) {
      |               ~~~~^~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 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 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 604 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 452 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 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 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 2024 KB Output is correct
2 Correct 42 ms 5464 KB Output is correct
3 Correct 164 ms 22452 KB Output is correct
4 Correct 43 ms 5576 KB Output is correct
5 Correct 6 ms 1500 KB Output is correct
6 Correct 4 ms 992 KB Output is correct
7 Correct 9 ms 1636 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 3028 KB Output is correct
2 Correct 13 ms 2016 KB Output is correct
3 Correct 67 ms 11716 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 3 ms 1116 KB Output is correct
6 Correct 10 ms 1632 KB Output is correct
7 Correct 11 ms 1752 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 3672 KB Output is correct
2 Correct 64 ms 7000 KB Output is correct
3 Correct 58 ms 7164 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 34 ms 7252 KB Output is correct
6 Correct 134 ms 21348 KB Output is correct
7 Correct 62 ms 8260 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 14664 KB Output is correct
2 Correct 14 ms 2144 KB Output is correct
3 Correct 5 ms 1116 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 3 ms 1116 KB Output is correct
6 Correct 129 ms 13260 KB Output is correct
7 Correct 9 ms 1756 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2144 KB Output is correct
2 Correct 41 ms 5368 KB Output is correct
3 Correct 5 ms 1348 KB Output is correct
4 Correct 5 ms 1056 KB Output is correct
5 Correct 37 ms 8532 KB Output is correct
6 Correct 15 ms 2140 KB Output is correct
7 Correct 168 ms 21688 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 192 ms 22356 KB Output is correct
2 Correct 13 ms 2144 KB Output is correct
3 Correct 4 ms 1116 KB Output is correct
4 Correct 178 ms 21080 KB Output is correct
5 Correct 45 ms 10696 KB Output is correct
6 Correct 8 ms 1500 KB Output is correct
7 Correct 18 ms 2888 KB Output is correct