이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e5;
int n;
int a[MAXN+1], k[MAXN+1];
void subtask1and2() {
int dp[n+1] = {}, pre[n+1];
for (int i = 1; i <= n; i++) {
dp[i] = 1;
pre[i] = i;
for (int j = 1; j < i; j++) if (__builtin_popcount(a[i] & a[j]) == k[i]) {
if (dp[j] + 1 > dp[i]) {
dp[i] = dp[j] + 1;
pre[i] = j;
}
}
}
int final = max_element(dp, dp+n+1) - dp;
vector<int> ans;
while (pre[final] != final) {
ans.push_back(final);
final = pre[final];
}
ans.push_back(final);
reverse(ans.begin(), ans.end());
cout << ans.size() << '\n';
for (int i : ans) cout << i << " ";
}
void subtask3() {
int dp[n+1] = {}, pre[n+1];
int best[256] = {}, bestindex[256] = {};
for (int i = 1; i <= n; i++) {
dp[i] = 1;
pre[i] = i;
for (int val = 0; val < 256; val++) {
if (__builtin_popcount(a[i] & val) != k[i]) continue;
if (best[val] + 1 > dp[i]) {
dp[i] = best[val] + 1;
pre[i] = bestindex[val];
}
}
if (dp[i] > best[a[i]]) {
best[a[i]] = dp[i];
bestindex[a[i]] = i;
}
}
int final = max_element(dp, dp+n+1) - dp;
vector<int> ans;
while (pre[final] != final) {
ans.push_back(final);
final = pre[final];
}
ans.push_back(final);
reverse(ans.begin(), ans.end());
cout << ans.size() << '\n';
for (int i : ans) cout << i << " ";
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
cin >> n;
for (int i = 1; i <= n; i++) cin >> a[i];
for (int i = 1; i <= n; i++) cin >> k[i];
if (*max_element(a, a+n+1) < 256) {
subtask3();
} else {
subtask1and2();
}
}
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