제출 #488543

#제출 시각아이디문제언어결과실행 시간메모리
488543acmLongest beautiful sequence (IZhO17_subsequence)C++14
40 / 100
6085 ms3352 KiB
#ifdef ONLINE_JUDGE #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3") #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #endif #include <bits/stdc++.h> #define speed \ ios_base::sync_with_stdio(0); \ cin.tie(0); \ cout.tie(0); #define precision \ cout.precision(30); \ cerr.precision(10); #define ll long long #define ld long double #define pb(x) push_back(x) #define sz(x) (int)x.size() #define mp(x, y) make_pair(x, y) #define all(x) x.begin(), x.end() #define pc(x) __builtin_popcount(x) #define pcll(x) __builtin_popcountll(x) #define F first #define S second using namespace std; mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count()); void ioi(string name) { freopen((name + ".in").c_str(), "r", stdin); freopen((name + ".out").c_str(), "w", stdout); } int n, a[100005], b[100005], p[100005], dp[100005], pd[100005]; int main() { speed; precision; // code cin >> n; for (int i = 1; i <= n; i++) cin >> a[i]; for (int i = 1; i <= n; i++) cin >> b[i], dp[i] = 1; for (int i = 1; i <= n; i++) { int k = b[i]; if (k <= pc(a[i])) { for (int j = i - 1; j >= 1; j--) { if (pc(a[i] & a[j]) == k) { if (dp[i] <= dp[j]) { dp[i] = dp[j] + 1; p[i] = j; } } if (dp[i] > pd[j]) break; } } pd[i] = max(pd[i - 1], dp[i]); } int m = max_element(dp + 1, dp + n + 1) - dp; vector<int> v = {m}; while (p[m]) { v.pb(p[m]); m = p[m]; } reverse(all(v)); cout << sz(v) << "\n"; for (auto x : v) cout << x << " "; // endl #ifndef ONLINE_JUDGE cerr << "\nTime elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n"; #endif return 0; }

컴파일 시 표준 에러 (stderr) 메시지

subsequence.cpp: In function 'void ioi(std::string)':
subsequence.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |   freopen((name + ".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
subsequence.cpp:27:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |   freopen((name + ".out").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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