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Submission #759224

# Submission time Handle Problem Language Result Execution time Memory
759224 2023-06-15T21:24:35 Z sofija6 Ice Hockey World Championship (CEOI15_bobek) C++14
100 / 100
 214 ms 20864 KB 
#include <bits/stdc++.h>
#define ll long long
#define MAXN 50
using namespace std;
ll a[MAXN],m;
vector<ll> v1,v2;
void Solve(ll l,ll r,ll cur,ll pos,vector<ll> &v)
{
    if (pos>r)
    {
        if (cur<=m)
            v.push_back(cur);
        return;
    }
    Solve(l,r,cur,pos+1,v);
    Solve(l,r,cur+a[pos],pos+1,v);
}
int main()
{
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll n,ans=0;
    cin >> n >> m;
    for (ll i=1;i<=n;i++)
        cin >> a[i];
    Solve(1,n/2,0,1,v1);
    Solve(n/2+1,n,0,n/2+1,v2);
    sort(v1.begin(),v1.end());
    sort(v2.begin(),v2.end());
    for (auto i : v1)
    {
        auto it=upper_bound(v2.begin(),v2.end(),m-i);
        if (it==v2.begin())
                continue;
        it--;
        ans+=it-v2.begin()+1;
    }
    cout << ans;
    return 0;
}

Subtask #1
10.0 / 10.0

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

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 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 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2008 KB Output is correct
2 Correct 55 ms 5452 KB Output is correct
3 Correct 214 ms 20760 KB Output is correct
4 Correct 49 ms 5452 KB Output is correct
5 Correct 7 ms 1492 KB Output is correct
6 Correct 5 ms 984 KB Output is correct
7 Correct 1 ms 316 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 2776 KB Output is correct
2 Correct 18 ms 2008 KB Output is correct
3 Correct 75 ms 10568 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 3 ms 856 KB Output is correct
6 Correct 10 ms 1492 KB Output is correct
7 Correct 2 ms 212 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 3540 KB Output is correct
2 Correct 70 ms 6608 KB Output is correct
3 Correct 70 ms 6608 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 31 ms 6608 KB Output is correct
6 Correct 160 ms 20828 KB Output is correct
7 Correct 4 ms 212 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 151 ms 12712 KB Output is correct
2 Correct 16 ms 1880 KB Output is correct
3 Correct 6 ms 856 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 3 ms 856 KB Output is correct
6 Correct 149 ms 12748 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2008 KB Output is correct
2 Correct 51 ms 5452 KB Output is correct
3 Correct 5 ms 984 KB Output is correct
4 Correct 5 ms 984 KB Output is correct
5 Correct 36 ms 6548 KB Output is correct
6 Correct 14 ms 2008 KB Output is correct
7 Correct 10 ms 212 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 204 ms 20804 KB Output is correct
2 Correct 16 ms 1880 KB Output is correct
3 Correct 5 ms 856 KB Output is correct
4 Correct 214 ms 20864 KB Output is correct
5 Correct 48 ms 10592 KB Output is correct
6 Correct 10 ms 1492 KB Output is correct
7 Correct 2 ms 212 KB Output is correct