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Submission #1082763

# Submission time Handle Problem Language Result Execution time Memory
1082763 2024-09-01T13:31:02 Z steveonalex Ice Hockey World Championship (CEOI15_bobek) C++17
40 / 100
 367 ms 8564 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
#define block_of_code if(true)
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
ll gcd(ll a, ll b){return __gcd(a, b);}
ll lcm(ll a, ll b){return a / gcd(a, b) * b;}
 
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}
 
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
double rngesus_d(double l, double r){
    double cur = rngesus(0, MASK(60) - 1);
    cur /= MASK(60) - 1;
    return l + cur * (r - l);
}
 
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }
 
template <class T>
    void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }
 
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }



int main(void){
    ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);
    clock_t start = clock();

    int n; ll w; cin >> n >> w;
    vector<ll> a(n);
    for(int i = 0; i<n; ++i) cin >> a[i];

    vector<ll> sum = {0};
    if (n > 20){
        for(int mask = 1; mask < MASK(n - 20); ++mask){
            ll cur = 0;
            for(int i = 0; i<n - 20; ++i) if (GETBIT(mask, i)) 
                cur += a[i];
            sum.push_back(cur);
        }
    }
    sort(ALL(sum));
    ll ans = 0;
    for(int mask = 0; mask < MASK(min(n, 20)); ++mask){
        ll cur = 0;
        for(int i = 0; i < min(n, 20); ++i) if (GETBIT(mask, i)) 
            cur += a[i];
        ans += upper_bound(ALL(sum), w - cur) - sum.begin();
    }
    cout << ans << "\n";

    cerr << "Time elapsed: " << clock() - start << " ms\n";
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct

Subtask #2
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 1 ms 460 KB Output is correct
4 Correct 1 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 7 ms 344 KB Output is correct
2 Correct 3 ms 348 KB Output is correct
3 Correct 6 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 69 ms 348 KB Output is correct
7 Correct 8 ms 344 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 432 KB Output is correct
2 Correct 13 ms 348 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 4 ms 348 KB Output is correct
5 Correct 54 ms 436 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 8 ms 456 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 118 ms 460 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 82 ms 604 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 110 ms 856 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 266 ms 4688 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 114 ms 560 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 367 ms 8564 KB Output isn't correct
2 Halted 0 ms 0 KB -