Submission #1122381

#	Time	Username	Problem	Language	Result	Execution time	Memory
1122381		vjudge1	Ice Hockey World Championship (CEOI15_bobek)	C++17	40 / 100	46 ms	504 KiB

bobek

 #pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("fast-math")
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define fi first
#define se second
#define vvi vector<vector<int>>
#define ld long double
#define ar array
#define pb push_back
#define vi vector<int>
#define vc vector
#define vpi vector<pair<int, int>>
#define pii pair<int, int>
#define all(c) (c).begin(), (c).end()
#define endll '\n'
#define fastio ios::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr);
#define lb(a, x) lower_bound(all(a), x) - a.begin();
#define ub(a, x) upper_bound(all(a), x) - a.begin();
template<typename T> bool umax(T &res, const T &val) { if (res < val){ res = val; return true; }; return false; }
template<typename T> bool umin(T &res, const T &val) { if (res > val){ res = val; return true; }; return false; }
mt19937 rng(time(0));
const int sz = 5e5 + 5;


void solve() {
    int n, m;
    cin >> n >> m;
    int a[n];
    for(int i = 0; i < n; ++i){
        cin >> a[i];
    }    
    int res = 0;
    for(int mask = 0; mask < (1 << n); mask++){
        int s = 0;
        for(int i = 0; i < n; ++i){
            if(1 << i & mask){
                s += a[i];
            }
        }
        res += s <= m;
    }
    cout << res << endl;
}

signed main() {
    fastio
    int T = 1;
    while (T--) {
        solve();
    }
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 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