oj.uz

Submission #757943

# Submission time Handle Problem Language Result Execution time Memory
757943 2023-06-14T02:40:16 Z ProtonDecay314 Gym Badges (NOI22_gymbadges) C++17
15 / 100
 388 ms 10316 KB 
/*
Guess who has a bitmask dp solution
that will work on the first subtask?
Heh, that's right, STARLIGHT ANYA

Also, subtask 2 is cute because you just sort the gyms by X_i
and then find the longest prefix of X that works

All in all, 24 points ^^

I will O(n^2) later ^^
*/
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

vector<ll> x;
vector<ll> l;
ll n;
bool memo[1 << 10] = {false};
bool solved[1 << 10] = {false};
bool poss(int S) {
    bool& ans = memo[S];

    if(!solved[S]) {
        if(S == 0) {
            ans = true;
            return ans;
        }
        ans = false;
        ll sumx = 0;
        for(int i = 0; i < 10; i++) {
            sumx += ((S >> i) & 1 ? x[i] : 0);
        }

        for(int i = 0; i < 10; i++) {
            if((S >> i) & 1) {
                if(poss(S ^ (1 << i)) && (sumx - x[i]) <= l[i]) {
                    ans = true;
                    break;
                }
            }
        }
    }
    solved[S] = true;
    return ans;
}

int main() {
    cin >> n;

    for(ll i = 0ll; i < n; i++) {
        ll cur;
        cin >> cur;
        x.push_back(cur);
    }

    for(ll i = 0ll; i < n; i++) {
        ll cur;
        cin >> cur;
        l.push_back(cur);
    }

    if(n <= 10) {
        poss((1 << n) - 1);

        int ans = 0;

        for(int i = 0; i < (1 << 10); i++) {
            if(memo[i]) {
                ans = max(ans, __popcount(i));
            }
        }

        cout << ans;
    }

    return 0;
}

Subtask #1
15.0 / 15.0

# 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 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 388 ms 10316 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# 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 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Incorrect 4 ms 340 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 49.0

# 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 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Incorrect 388 ms 10316 KB Output isn't correct
22 Halted 0 ms 0 KB -