QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #505789 | #8332. Two in One | k1nsom | WA | 354ms | 7908kb | C++17 | 1.0kb | 2024-08-05 11:29:03 | 2024-08-05 11:29:04 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'
#define lowbit(x) (x & -x)
const int N = 2e5 + 5;
const int mod = 1e9 + 7;
int n, a[N], c[N], cnt[N];
void solve()
{
cin >> n;
for (int i = 1; i <= n; i++)
cin >> a[i], c[a[i]]++;
for (int i = 1; i <= n; i++)
if (c[i])
cnt[c[i]]++;
int ans = 0;
vector<int> tmp;
for (int i = 1; i <= n; i++)
if (cnt[i])
{
ans = max(ans, i);
tmp.push_back(i);
if (cnt[i] >= 2)
ans = max(ans, i | (lowbit(i) - 1));
}
for (auto x : tmp)
for (auto y : tmp)
{
ans = max(ans, x | y);
int tmp = x & y;
if (tmp)
ans = max(ans, x | y | ((1 << __lg(tmp)) - 1));
}
cout << ans << endl;
}
signed main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int t = 1;
cin >> t;
while (t--)
solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 7908kb
input:
1 7 1 2 3 4 3 2 1
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 1ms
memory: 5596kb
input:
1 9 1 1 1 1 1 2 2 2 2
output:
7
result:
ok 1 number(s): "7"
Test #3:
score: -100
Wrong Answer
time: 354ms
memory: 7824kb
input:
50 10000 72 65 90 94 67 93 41 43 54 83 31 34 38 37 44 42 92 63 66 79 90 45 41 40 19 54 34 90 13 74 40 77 41 57 74 86 91 79 34 39 21 88 90 57 23 31 8 15 80 27 45 38 53 96 51 82 70 71 19 75 62 95 31 67 99 97 94 29 90 7 95 82 61 98 62 77 43 65 66 30 41 69 38 79 51 9 63 77 13 30 72 70 67 93 92 45 74 50 ...
output:
255 511 1023 1023 1023 2047 2047 2047 2047 2047 4095 4095 4095 4095 4095 4095 4095 4095 4095 4095 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 8191 16383 16383 16383 16383 16383 16383 16383 16383 16383
result:
wrong answer 2nd numbers differ - expected: '255', found: '511'