結果
問題 | No.332 数列をプレゼントに |
ユーザー |
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提出日時 | 2020-04-20 15:03:22 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,680 bytes |
コンパイル時間 | 2,844 ms |
コンパイル使用メモリ | 202,500 KB |
最終ジャッジ日時 | 2025-01-09 21:55:12 |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 23 WA * 19 |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using pii = pair<int, int>; template <class T> using V = vector<T>; template <class T> using VV = V<V<T>>; #define pb push_back #define eb emplace_back #define mp make_pair #define fi first #define se second #define rep(i, n) rep2(i, 0, n) #define rep2(i, m, n) for (int i = m; i < (n); i++) #define ALL(c) (c).begin(), (c).end() constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n - 1); } template <class T, class U> void chmin(T& t, const U& u) { if (t > u) t = u; } template <class T, class U> void chmax(T& t, const U& u) { if (t < u) t = u; } template <class T, class U> ostream& operator<<(ostream& os, const pair<T, U>& p) { os << "(" << p.first << "," << p.second << ")"; return os; } template <class T> ostream& operator<<(ostream& os, const vector<T>& v) { os << "{"; rep(i, v.size()) { if (i) os << ","; os << v[i]; } os << "}"; return os; } #ifdef LOCAL void debug_out() { cerr << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << " " << H; debug_out(T...); } #define debug(...) \ cerr << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif const int MX = 200010; const int L = TEN(5); int dp[MX]; int main() { int N; ll X; cin >> N >> X; V<int> A(N); rep(i, N) { cin >> A[i]; } V<pii> vec(N); rep(i, N) vec[i] = mp(A[i], i); sort(ALL(vec)); reverse(ALL(vec)); memset(dp, -1, sizeof(dp)); V<int> big; dp[0] = -2; rep(i, N) { if (i < 20) { big.pb(vec[i].se); } else { int x = vec[i].fi; for (int j = MX - 1; j >= x; --j) { if (dp[j - x] != -1) { dp[j] = vec[i].se; } } } } int n = big.size(); rep(i, 1 << n) { ll s = 0; rep(j, n) { if ((i >> j) & 1) { s += A[big[j]]; } } if (s <= X && X - s < MX && dp[X - s] != -1) { string ans(N, 'x'); int cur = X - s; while (cur > 0) { int p = dp[cur]; ans[p] = 'o'; cur -= A[p]; } rep(j, n) { if ((i >> j) & 1) { ans[big[j]] = 'o'; } } cout << ans << endl; return 0; } } cout << "No" << endl; return 0; }