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>
//#define int long long
#define fi first
#define se second
#define pb push_back
#define faster ios_base::sync_with_stdio(0); cin.tie(0);
using namespace std;
using ll = long long;
using ull = unsigned ll;
using ld = long double;
using pii = pair <int, int>;
using pil = pair <int, ll>;
using pli = pair <ll, int>;
using pll = pair <ll, ll>;
mt19937 Rand(chrono::steady_clock::now().time_since_epoch().count());
ll min(const ll &a, const ll &b){
return (a < b) ? a : b;
}
ll max(const ll &a, const ll &b){
return (a > b) ? a : b;
}
//const ll Mod = 1000000007;
//const ll Mod2 = 999999999989;
//only use when required
const int maxN = 1e5 + 1;
const int maxH = 1025;
const int maxK = 21;
int n;
int f[2][maxH][maxH][maxK];
pii dp[maxN];
int a[maxN];
int p[maxN];
pii ans;
void Init(){
cin >> n;
for (int i = 1; i <= n; ++i) cin >> a[i];
for (int i = 1; i <= n; ++i) cin >> p[i];
memset(f, -1, sizeof(f));
for (int i = 0; i <= n; ++i){
int pos = i % 2;
int l = a[i] >> 10;
int r = a[i] & ((1 << 10) - 1);
dp[i] = {1, -1};
for (int j = 0; j < 1 << 10; ++j){
int cntl = __builtin_popcount(j & l);
const int &k = p[i];
int cntr = k - cntl;
if (cntr < 0 || cntr > 10) continue;
if (f[pos ^ 1][j][r][k] != -1){
dp[i] = max(dp[i], {dp[f[pos ^ 1][j][r][k]].fi + 1, f[pos ^ 1][j][r][k]});
}
}
ans = max(ans, {dp[i].fi, i});
for (int j = 0; j < 1 << 10; ++j){
int cntr = __builtin_popcount(j & r);
f[pos][l][j][cntr] = i;
}
}
vector <int> res;
cout << ans.fi << "\n";
while (ans.se != -1){
res.pb(ans.se);
ans = dp[dp[ans.se].fi];
}
reverse(res.begin(), res.end());
for (int i: res) cout << i << " ";
}
#define debu
#define taskname "test"
signed main(){
if (fopen(taskname".inp", "r")){
freopen(taskname".inp", "r", stdin);
#ifdef debug
freopen(taskname".out", "w", stdout);
#endif
}
faster;
ll tt = 1;
//cin >> tt;
while (tt--){
Init();
}
if (fopen("timeout.txt", "r")){
ofstream timeout("timeout.txt");
timeout << 1000 * double(clock()) / CLOCKS_PER_SEC;
#ifndef debug
cerr << "\nTime elapsed: " << 1000 * double(clock()) / CLOCKS_PER_SEC << "ms\n";
#endif
}
}
컴파일 시 표준 에러 (stderr) 메시지
subsequence.cpp: In function 'int main()':
subsequence.cpp:77:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
77 | freopen(taskname".inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
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