Submission #389301

#TimeUsernameProblemLanguageResultExecution timeMemory
389301Kevin_Zhang_TWBinary Subsequences (info1cup17_binary)C++17
0 / 100
1076 ms16260 KiB
#pragma GCC optimize("Ofast") #include <bits/stdc++.h> using namespace std; using ll = long long; #define pb emplace_back #define AI(i) begin(i), end(i) template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); } template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); } #ifdef KEV #define DE(args...) kout("[ " + string(#args) + " ] = ", args) void kout() { cerr << endl; } template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); } template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; } #else #define DE(...) 0 #define debug(...) 0 #endif const int MAX_N = 1000010, MAX_W = 30, inf = 1e7; int cal(int v, int wid) { int dp[2] {}; for (int i = 0;i < wid;++i) { int a = v>>i&1; int tmp[2] {}; tmp[a^1] = dp[a^1]; tmp[a] = dp[0] + 1 + dp[1]; swap(dp, tmp); chmin(dp[0], inf), chmin(dp[1], inf); } return dp[0] + dp[1]; } int cnt[MAX_N]; int rec[MAX_N]; void solve() { int K; cin >> K; for (int wid = 1;;++wid) { for (int i = 0;i < 1<<wid;++i) { rec[i] = cal(i, wid); ++cnt[ rec[i] ]; } if (cnt[K]) { cout << cnt[K] << '\n'; for (int i = 0;i < 1<<wid;++i) { if (rec[i] == K) { for (int j = 0;j < wid;++j) cout << (i>>j&1) << " \n"[j+1==wid]; break; } } } bool ok = cnt[K]; for (int i = 0;i < 1<<wid;++i) --cnt[ rec[i] ]; if (ok) break; } } int32_t main() { ios_base::sync_with_stdio(0), cin.tie(0); int T; cin >> T; while (T--) solve(); }
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