Submission #491348

#TimeUsernameProblemLanguageResultExecution timeMemory
491348acmBeautiful row (IZhO12_beauty)C++14
0 / 100
8 ms3096 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); } ll n, a[25], b[25], dp[1 << 22][22]; int main() { speed; precision; // code cin >> n; for (int i = 0; i < n; i++) { ll x; cin >> x; a[i] = pc(x); while (x > 0) { b[i] += ((x % 3) == 1); x /= 3; } } for (int i = 0; i < n; i++) dp[1 << i][i] = 1; for (int i = 0; i < (1 << n); i++) { for (int j = 0; j < n; j++) { if ((1 << j) & i) continue; for (int k = 0; k < n; k++) { if (k != j && ((1 << k) & i)) if (a[k] == a[j] || b[k] == b[j]) dp[(1 << j) | i][j] += dp[i][k]; } } } cout << accumulate(dp[(1 << n) - 1], dp[(1 << n) - 1] + n, 0); // endl #ifndef ONLINE_JUDGE cerr << "\nTime elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n"; #endif return 0; }

Compilation message (stderr)

beauty.cpp: In function 'void ioi(std::string)':
beauty.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);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
beauty.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);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...