oj.uz

Submission #759221

# Submission time Handle Problem Language Result Execution time Memory
759221 2023-06-15T21:22:06 Z sofija6 Ice Hockey World Championship (CEOI15_bobek) C++14
100 / 100
 220 ms 20852 KB 
#include <bits/stdc++.h>
#define ll long long
#define MAXN 50
using namespace std;
ll a[MAXN],m,l,r;
vector<ll> v1,v2;
void Solve_1(ll cur,ll pos)
{
    if (pos>r)
    {
        if (cur>m)
            return;
        v1.push_back(cur);
        return;
    }
    Solve_1(cur,pos+1);
    Solve_1(cur+a[pos],pos+1);
}
void Solve_2(ll cur,ll pos)
{
    if (pos>r)
    {
        if (cur>m)
            return;
        v2.push_back(cur);
        return;
    }
    Solve_2(cur,pos+1);
    Solve_2(cur+a[pos],pos+1);
}
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];
    l=1;
    r=n/2;
    Solve_1(0,1);
    l=n/2+1;
    r=n;
    Solve_2(0,n/2+1);
    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 0 ms 256 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 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 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 212 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 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 #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2008 KB Output is correct
2 Correct 53 ms 5452 KB Output is correct
3 Correct 219 ms 20788 KB Output is correct
4 Correct 55 ms 5432 KB Output is correct
5 Correct 6 ms 1492 KB Output is correct
6 Correct 5 ms 856 KB Output is correct
7 Correct 2 ms 212 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 2896 KB Output is correct
2 Correct 17 ms 1880 KB Output is correct
3 Correct 78 ms 10568 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 4 ms 984 KB Output is correct
6 Correct 10 ms 1492 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 3540 KB Output is correct
2 Correct 80 ms 6608 KB Output is correct
3 Correct 70 ms 6520 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 32 ms 6608 KB Output is correct
6 Correct 169 ms 20852 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 153 ms 12748 KB Output is correct
2 Correct 17 ms 1988 KB Output is correct
3 Correct 6 ms 984 KB Output is correct
4 Correct 0 ms 316 KB Output is correct
5 Correct 4 ms 984 KB Output is correct
6 Correct 139 ms 12748 KB Output is correct
7 Correct 1 ms 328 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 49 ms 5452 KB Output is correct
3 Correct 6 ms 856 KB Output is correct
4 Correct 5 ms 856 KB Output is correct
5 Correct 35 ms 6608 KB Output is correct
6 Correct 15 ms 2008 KB Output is correct
7 Correct 10 ms 316 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 20804 KB Output is correct
2 Correct 16 ms 1880 KB Output is correct
3 Correct 6 ms 984 KB Output is correct
4 Correct 220 ms 20816 KB Output is correct
5 Correct 50 ms 10568 KB Output is correct
6 Correct 11 ms 1492 KB Output is correct
7 Correct 2 ms 212 KB Output is correct