This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
bool ckmax(int& a, int b) {
if (a < b) return a = b, true;
return false;
}
const int MAXN = 2001;
int dp[MAXN], prv[MAXN], a[MAXN], k[MAXN];
int main() {
int n;
cin >> n;
for (int i = 0; i < n; i++) {
cin >> a[i];
dp[i] = 1;
prv[i] = i;
}
for (int i = 0; i < n; i++) {
cin >> k[i];
}
for (int i = 1; i < n; i++)
for (int j = 0; j < i; j++)
if (__builtin_popcount(a[i] & a[j]) == k[i] && ckmax(dp[i], 1 + dp[j]))
prv[i] = j;
int mx = max_element(dp, dp + n) - dp;
vector<int> ans;
ans.push_back(mx);
while (mx != prv[mx]) {
mx = prv[mx];
ans.push_back(mx);
}
reverse(ans.begin(), ans.end());
cout << ans.size() << '\n';
for (auto& i : ans) cout << i + 1 << ' ';
}
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