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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#355717 | #7932. AND-OR closure | pipoika# | WA | 1ms | 3904kb | C++17 | 2.0kb | 2024-03-17 04:14:10 | 2024-03-17 04:14:12 |
Judging History
answer
#include<bits/stdc++.h>
#define rep(i,j,k) for (int i=j;i<(k);++i)
#define all(i) (i).begin(), (i).end()
#define sz(i) (int)(i).size()
using namespace std;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
typedef long long ll;
typedef vector<ll> vll;
vll deps;
int split;
vll shifts;
vll left_side;
ll masker;
ll ans = 0;
void masks(ll cur, int bit) {
if (bit == split) {
// cout << ' ' << cur << endl;
++left_side[cur];
return;
}
if ((cur & shifts[bit])) masks(cur^shifts[bit], bit+1);
masks(cur, bit+1);
}
void step1(ll cur, int bit) {
if (bit < 0) {
masks(cur, 0);
return;
}
if ((cur&shifts[bit]) == 0) step1(cur|deps[bit], bit-1);
step1(cur, bit-1);
}
void generate(ll cur, int bit) {
if (bit < split) {
ll masked = cur&masker;
ans += left_side[masked];
// cout << cur << ' ' << left_side[masked] << endl;
// TODO
return;
}
if ((cur&shifts[bit]) == 0) generate(cur|deps[bit], bit-1);
generate(cur, bit-1);
}
int main() {
int n;
int _;
_=scanf("%d",&n);
vll nums(n);
rep(i,0,n) _=scanf("%lld",&nums[i]);
ll bit=1;
set<ll> dups;
rep(p,0,40) {
ll sub = -1;
for (auto x : nums) if (x&bit) sub&=x;
if (~sub) dups.insert(sub);
bit<<=1;
}
if (sz(dups) == 0) {
cout << "1\n";
return 0;
}
vll vals;
for (auto x : dups) vals.push_back(x);
int m=sz(dups);
deps.assign(m, 0);
shifts.assign(m,0);
shifts[0]=1;
rep(i,1,m) shifts[i]=shifts[i-1]<<1;
rep(i,0,m) rep(j,0,i+1) {
if ((vals[i]&vals[j]) == vals[j]) deps[i]|=shifts[j];
}
split=max(0,m-25); //MUST ADD RTHIS Back
// split = 1;
masker = (1<<split) - 1;
left_side.assign(1<<split, 0);
step1(0, split-1);
generate(0L, m-1);
cout << ans << endl;
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3904kb
input:
4 0 1 3 5
output:
5
result:
ok 1 number(s): "5"
Test #2:
score: 0
Accepted
time: 1ms
memory: 3592kb
input:
5 0 1 2 3 4
output:
8
result:
ok 1 number(s): "8"
Test #3:
score: -100
Wrong Answer
time: 0ms
memory: 3592kb
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:
53
result:
wrong answer 1st numbers differ - expected: '52', found: '53'