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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#378134#7932. AND-OR closuretylerm390#WA 12ms19652kbC++201.9kb2024-04-06 06:43:242024-04-06 06:43:24

Judging History

你现在查看的是最新测评结果

  • [2024-04-06 06:43:24]
  • 评测
  • 测评结果:WA
  • 用时:12ms
  • 内存:19652kb
  • [2024-04-06 06:43:24]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

using vi = vector<int>;
using ll = long long;
using pii = pair<int, int>;
using vvi = vector<vi>;
using vll = vector<ll>;

#define rep(i, a, b) for(int i = a; i < (b); i++)
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define bitat(x, i) (((x)>>(i))&(1))

void solve() {
    int n;
    cin >> n;

    vector<ll> arr(40, 0);
    ll tot = (1ll<<40)-1;
    for (int i = 0; i < n; i++) {
        ll x;
        cin >> x;
        tot &= x;
        for (int j = 0; j < 40; j++) {
            if (bitat(x, j)) arr[j] = (arr[j] == 0 ? x : arr[j]&x);
        }
    }
    for (int i = 0; i < 40; i++) {
        for (int j = 0; j < 40; j++) if (bitat(arr[i], j)) arr[j] |= (1ll<<i);
    }
    for (int i = 0; i < 40; i++) {
        if (arr[i]) arr[i] -= (1ll<<i);
        else arr[i] = -1;
    }
    // for (int i = 0; i < 40; i++) cout << (1ll<<i) << ": " << arr[i] << endl;

    vll ways(1<<20);
    ways[0] = 1;
    for (int i = 1; i < (1<<20); i++) {
        int low = __builtin_ctz(i);
        ways[i] = ways[i&(i-1)]*((arr[low]&i) == 0);
    }
    for (int bit = 1; bit < (1<<20); bit *= 2) {
        for (int i = 0; i < (1<<20); i++) {
            if ((i^bit) < i) ways[i] += ways[i^bit];
        }
    }
    ll res = ways[(1<<20)-1];
    vll ways2(1<<20);
    // cout << res << "\n";
    for (ll i = 1; i < (1<<20); i++) {
        int low = __builtin_ctz(i);
        ways2[i] = ways2[i&(i-1)] | arr[low+20];
        if ((ways2[i]&(i<<20)) == 0) {
            // cout << i << " " << ways2[i] << " " << (1ll<<20)-1-(ways2[i]&((1<<20)-1)) << endl;
            res += ways[(1ll<<20)-1-(ways2[i]&((1<<20)-1))];
        }
    }
    cout << res - (tot != 0) << "\n";
}

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin.exceptions(cin.failbit);

    solve();

    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 12ms
memory: 19516kb

input:

4
0 1 3 5

output:

5

result:

ok 1 number(s): "5"

Test #2:

score: 0
Accepted
time: 7ms
memory: 19516kb

input:

5
0 1 2 3 4

output:

8

result:

ok 1 number(s): "8"

Test #3:

score: -100
Wrong Answer
time: 8ms
memory: 19652kb

input:

49
1097363587067 1096810445814 275012137504 1096739142630 1096809921522 1087071335264 829364908576 949625500192 1087142638448 1096200190829 1097292808175 1095750860656 1087144145776 1097346808827 1095734082416 1096755396578 829230678048 1095663303524 1087072842592 1096216444777 949623992864 10962714...

output:

1184

result:

wrong answer 1st numbers differ - expected: '52', found: '1184'