結果
問題 | No.1154 シュークリームゲーム(Hard) |
ユーザー | heno239 |
提出日時 | 2020-08-08 03:42:09 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,930 bytes |
コンパイル時間 | 1,475 ms |
コンパイル使用メモリ | 126,768 KB |
実行使用メモリ | 9,044 KB |
最終ジャッジ日時 | 2024-09-25 06:37:58 |
合計ジャッジ時間 | 3,405 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 4 ms
5,504 KB |
testcase_01 | AC | 3 ms
5,632 KB |
testcase_02 | AC | 3 ms
5,632 KB |
testcase_03 | AC | 3 ms
5,504 KB |
testcase_04 | AC | 3 ms
5,504 KB |
testcase_05 | AC | 3 ms
5,504 KB |
testcase_06 | AC | 4 ms
5,504 KB |
testcase_07 | AC | 4 ms
5,376 KB |
testcase_08 | AC | 4 ms
5,504 KB |
testcase_09 | AC | 4 ms
5,504 KB |
testcase_10 | AC | 4 ms
5,504 KB |
testcase_11 | AC | 4 ms
5,504 KB |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | AC | 4 ms
5,504 KB |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | AC | 57 ms
6,784 KB |
testcase_32 | AC | 65 ms
5,760 KB |
testcase_33 | AC | 9 ms
5,888 KB |
testcase_34 | AC | 9 ms
5,760 KB |
testcase_35 | AC | 9 ms
5,888 KB |
testcase_36 | AC | 9 ms
5,888 KB |
testcase_37 | AC | 9 ms
5,888 KB |
testcase_38 | AC | 3 ms
5,632 KB |
testcase_39 | AC | 3 ms
5,504 KB |
testcase_40 | AC | 8 ms
5,888 KB |
testcase_41 | AC | 55 ms
6,912 KB |
ソースコード
#include<iostream> #include<string> #include<cstdio> #include<vector> #include<cmath> #include<algorithm> #include<functional> #include<iomanip> #include<queue> #include<ciso646> #include<random> #include<map> #include<set> #include<bitset> #include<stack> #include<unordered_map> #include<utility> #include<cassert> #include<complex> #include<numeric> using namespace std; //#define int long long typedef long long ll; typedef unsigned long long ul; typedef unsigned int ui; constexpr ll mod = 1000000007; const ll INF = mod * mod; typedef pair<int, int>P; #define stop char nyaa;cin>>nyaa; #define rep(i,n) for(int i=0;i<n;i++) #define per(i,n) for(int i=n-1;i>=0;i--) #define Rep(i,sta,n) for(int i=sta;i<n;i++) #define rep1(i,n) for(int i=1;i<=n;i++) #define per1(i,n) for(int i=n;i>=1;i--) #define Rep1(i,sta,n) for(int i=sta;i<=n;i++) #define all(v) (v).begin(),(v).end() typedef pair<ll, ll> LP; typedef long double ld; typedef pair<ld, ld> LDP; const ld eps = 1e-12; const ld pi = acos(-1.0); ll mod_pow(ll x, ll n, ll m) { ll res = 1; while (n) { if (n & 1)res = res * x % m; x = x * x % m; n >>= 1; } return res; } struct modint { ll n; modint() :n(0) { ; } modint(ll m) :n(m) { if (n >= mod)n %= mod; else if (n < 0)n = (n % mod + mod) % mod; } operator int() { return n; } }; bool operator==(modint a, modint b) { return a.n == b.n; } modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; } modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; } modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; } modint operator+(modint a, modint b) { return a += b; } modint operator-(modint a, modint b) { return a -= b; } modint operator*(modint a, modint b) { return a *= b; } modint operator^(modint a, ll n) { if (n == 0)return modint(1); modint res = (a * a) ^ (n / 2); if (n % 2)res = res * a; return res; } ll inv(ll a, ll p) { return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p); } modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); } const int max_n = 1 << 17; modint fact[max_n], factinv[max_n]; void init_f() { fact[0] = modint(1); for (int i = 0; i < max_n - 1; i++) { fact[i + 1] = fact[i] * modint(i + 1); } factinv[max_n - 1] = modint(1) / fact[max_n - 1]; for (int i = max_n - 2; i >= 0; i--) { factinv[i] = factinv[i + 1] * modint(i + 1); } } modint comb(int a, int b) { if (a < 0 || b < 0 || a < b)return 0; return fact[a] * factinv[b] * factinv[a - b]; } vector<int> merge(vector<int>& a, vector<int>& b) { vector<vector<ll>> dp(a.size()+1, vector<ll>(b.size()+1)); vector<vector<P>> nex(a.size() + 1, vector<P>(b.size() + 1)); dp[a.size()][b.size()] = 0; //cout << "hello\n"; //rep(i, a.size())cout << a[i] << " "; cout << "\n"; //rep(j, b.size())cout << b[j] << " "; cout << "\n"; per(i, a.size() + 1) { per(j, b.size() + 1) { int id = (i + j) % 2; if (i == a.size() && j == b.size())continue; else if (i == a.size()) { if (id == 0) { dp[i][j] = dp[i][j + 1] + b[j]; nex[i][j] = { i,j + 1 }; } else { dp[i][j] = dp[i][j+1] - b[j]; nex[i][j] = { i,j+1 }; } } else if (j == b.size()) { if (id == 0) { dp[i][j] = dp[i + 1][j] + a[i]; nex[i][j] = { i + 1,j }; } else { dp[i][j] = dp[i + 1][j] - a[i]; nex[i][j] = { i + 1,j }; } } else { if (id == 0) { if (dp[i + 1][j]+a[i] < dp[i][j + 1]+b[j]) { dp[i][j] = dp[i][j + 1] + b[j]; nex[i][j] = { i,j + 1 }; } else { dp[i][j] = dp[i + 1][j] + a[i]; nex[i][j] = { i + 1,j }; } } else { if (dp[i + 1][j]-a[i] > dp[i][j + 1]-b[j]) { dp[i][j] = dp[i][j + 1] - b[j]; nex[i][j] = { i,j + 1 }; } else { dp[i][j] = dp[i + 1][j] - a[i]; nex[i][j] = { i + 1,j }; } } } } } vector<int> res; int cx = 0, cy = 0; while (cx < a.size() || cy < b.size()) { int nx = nex[cx][cy].first; int ny = nex[cx][cy].second; if (cx != nx) { res.push_back(a[cx]); } else { res.push_back(b[cy]); } swap(cx, nx); swap(cy, ny); } //rep(i, res.size())cout << res[i] << " "; cout << "\n"; return res; } vector<int> G[1000]; int a[1000]; vector<int> dfs(int id, int fr) { vector<int> res; for (int to : G[id])if (to != fr) { vector<int> nex = dfs(to, id); res = merge(res, nex); } res.insert(res.begin(), a[id]); return res; } void solve() { int n; cin >> n; rep(i, n)cin >> a[i]; rep(i, n - 1) { int a, b; cin >> a >> b; a--; b--; G[a].push_back(b); G[b].push_back(a); } vector<int> v = dfs(0, -1); ll ans = 0; rep(i, n) { if (i % 2 == 0)ans += v[i]; else ans -= v[i]; } cout << ans << "\n"; } signed main() { ios::sync_with_stdio(false); cin.tie(0); //cout << fixed << setprecision(10); //init_f(); //expr(); //int t; cin >> t; rep(i, t) solve(); return 0; }