Submission #967989

#	Time	Username	Problem	Language	Result	Execution time	Memory
967989		vjudge1	Ice Hockey World Championship (CEOI15_bobek)	C++17	20 / 100	1060 ms	77584 KiB

bobek

#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll n,m;
unordered_set<string> st;
ll solve(vector<ll> pr,ll curr,string vis) {
    if (curr < 0) {
        return 0;
    }
    if (st.find(vis) != st.end()) {
        return 0;
    }
    st.insert(vis);
    ll c=1;
    for (int i=0;i<n;i++) {
        if (vis[i] == '0') {
            vis[i] = '1';
            c+=solve(pr,curr-pr[i],vis);
            vis[i]= '0';
        }
    }
    return c;
}
int main() {
    cin.tie(0)->sync_with_stdio(false);
    cin >> n >> m;
    vector<ll> pr(n);
    for (int i=0;i<n;i++) {
        cin >> pr[i];
    }
    cout << solve(pr,m,string(n,'0'));
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10