結果
| 問題 | No.957 植林 |
| コンテスト | |
| ユーザー |
 Pachicobue
|
| 提出日時 | 2019-12-20 00:16:44 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.89.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 8,748 bytes |
| 記録 | |
| コンパイル時間 | 2,638 ms |
| コンパイル使用メモリ | 210,008 KB |
| 最終ジャッジ日時 | 2025-01-08 13:04:35 |
|
ジャッジサーバーID （参考情報） |
judge3 / judge2 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 22 TLE * 23 |
ソースコード
#include <bits/stdc++.h>
// created [2019/12/19] 21:42:53
// 何かの間違いで通ってくれ
#pragma GCC diagnostic ignored "-Wsign-compare"
#pragma GCC diagnostic ignored "-Wsign-conversion"
using i32 = int32_t;
using i64 = int64_t;
using u32 = uint32_t;
using u64 = uint64_t;
using uint = unsigned int;
using usize = std::size_t;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
template<typename T, usize n>
using arr = T (&)[n];
template<typename T, usize n>
using c_arr = const T (&)[n];
template<typename T> constexpr T popcount(const T u) { return u ? static_cast<T>(__builtin_popcountll(static_cast<u64>(u))) : static_cast<T>(0); }
template<typename T> constexpr T log2p1(const T u) { return u ? static_cast<T>(64 - __builtin_clzll(static_cast<u64>(u))) : static_cast<T>(0); }
template<typename T> constexpr T msbp1(const T u) { return log2p1(u); }
template<typename T> constexpr T lsbp1(const T u) { return __builtin_ffsll(u); }
template<typename T> constexpr T clog(const T u) { return u ? log2p1(u - 1) : static_cast<T>(u); }
template<typename T> constexpr bool ispow2(const T u) { return u and (static_cast<u64>(u) & static_cast<u64>(u - 1)) == 0; }
template<typename T> constexpr T ceil2(const T u) { return static_cast<T>(1) << clog(u); }
template<typename T> constexpr T floor2(const T u) { return u == 0 ? static_cast<T>(0) : static_cast<T>(1) << (log2p1(u) - 1); }
template<typename T> constexpr bool btest(const T mask, const usize ind) { return static_cast<bool>((static_cast<u64>(mask) >> ind) & static_cast<u64>(1)); }
template<typename T> void bset(T& mask, const usize ind) { mask |= (static_cast<T>(1) << ind); }
template<typename T> void breset(T& mask, const usize ind) { mask &= ~(static_cast<T>(1) << ind); }
template<typename T> void bflip(T& mask, const usize ind) { mask ^= (static_cast<T>(1) << ind); }
template<typename T> void bset(T& mask, const usize ind, const bool b) { (b ? bset(mask, ind) : breset(mask, ind)); }
template<typename T> constexpr T bcut(const T mask, const usize ind) { return ind == 0 ? static_cast<T>(0) : static_cast<T>((static_cast<u64>(mask) << (64 - ind)) >> (64 - ind)); }
template<typename T> bool chmin(T& a, const T& b) { return (a > b ? a = b, true : false); }
template<typename T> bool chmax(T& a, const T& b) { return (a < b ? a = b, true : false); }
constexpr unsigned int mod = 1000000007;
template<typename T> constexpr T inf_v = std::numeric_limits<T>::max() / 4;
template<typename Real> constexpr Real pi_v = Real{3.141592653589793238462643383279502884};
auto mfp = [](auto&& f) { return [=](auto&&... args) { return f(f, std::forward<decltype(args)>(args)...); }; };
template<typename T>
T in()
{
T v;
return std::cin >> v, v;
}
template<typename T, typename Uint, usize n, usize i>
T in_v(typename std::enable_if<(i == n), c_arr<Uint, n>>::type) { return in<T>(); }
template<typename T, typename Uint, usize n, usize i>
auto in_v(typename std::enable_if<(i < n), c_arr<Uint, n>>::type& szs)
{
const usize s = (usize)szs[i];
std::vector<decltype(in_v<T, Uint, n, i + 1>(szs))> ans(s);
for (usize j = 0; j < s; j++) { ans[j] = in_v<T, Uint, n, i + 1>(szs); }
return ans;
}
template<typename T, typename Uint, usize n>
auto in_v(c_arr<Uint, n> szs) { return in_v<T, Uint, n, 0>(szs); }
template<typename... Types>
auto in_t() { return std::tuple<std::decay_t<Types>...>{in<Types>()...}; }
struct io_init
{
io_init()
{
std::cin.tie(nullptr), std::ios::sync_with_stdio(false);
std::cout << std::fixed << std::setprecision(20);
}
void clear()
{
std::cin.tie(), std::ios::sync_with_stdio(true);
}
} io_setting;
template<typename T>
int out(const T& v) { return std::cout << v, 0; }
template<typename T>
int out(const std::vector<T>& v)
{
for (usize i = 0; i < v.size(); i++) {
if (i > 0) { std::cout << ' '; }
out(v[i]);
}
return std::cout << "\n", 0;
}
template<typename T1, typename T2>
int out(const std::pair<T1, T2>& v) { return out(v.first), std::cout << ' ', out(v.second), 0; }
template<typename T, typename... Args>
int out(const T& v, const Args... args) { return out(v), std::cout << ' ', out(args...), 0; }
template<typename... Args>
int outln(const Args... args) { return out(args...), std::cout << '\n', 0; }
template<typename... Args>
void outel(const Args... args) { return out(args...), std::cout << std::endl, 0; }
# define SHOW(...) static_cast<void>(0)
constexpr ull TEN(const usize n) { return n == 0 ? 1ULL : TEN(n - 1) * 10ULL; }
template<typename T, typename Uint, usize n, usize i>
auto make_v(typename std::enable_if<(i == n), c_arr<Uint, n>>::type, const T& v = T{}) { return v; }
template<typename T, typename Uint, usize n, usize i>
auto make_v(typename std::enable_if<(i < n), c_arr<Uint, n>>::type szs, const T& v = T{})
{
const usize s = (usize)szs[i];
return std::vector<decltype(make_v<T, Uint, n, i + 1>(szs, v))>(s, make_v<T, Uint, n, i + 1>(szs, v));
}
template<typename T, typename Uint, usize n>
auto make_v(c_arr<Uint, n> szs, const T& t = T{}) { return make_v<T, Uint, n, 0>(szs, t); }
template<typename T> class Dinic
{
private:
static_assert(std::is_integral<T>::value, "Integral required.");
struct edge
{
int to;
T cap;
int rev;
};
const int V;
std::vector<int> level, iter, que;
static unsigned long long floor2(unsigned long long v)
{
v = v | (v >> 1), v = v | (v >> 2);
v = v | (v >> 4), v = v | (v >> 8);
v = v | (v >> 16), v = v | (v >> 32);
return v - (v >> 1);
}
void bfs(const int s, const T base)
{
fill(level.begin(), level.end(), -1);
level[s] = 0;
int qh = 0, qt = 0;
for (que[qt++] = s; qh < qt;) {
int v = que[qh++];
for (edge& e : G[v]) {
if (level[e.to] < 0 && e.cap >= base) {
level[e.to] = level[v] + 1;
que[qt++] = e.to;
}
}
}
}
T dfs(const int v, const int t, const T base, const T f)
{
if (v == t) return f;
T sum = 0;
for (int& i = iter[v]; i < (int)G[v].size(); i++) {
edge& e = G[v][i];
if (e.cap >= base && level[v] < level[e.to]) {
T d = dfs(e.to, t, base, std::min(f - sum, e.cap));
if (d > 0) {
e.cap -= d;
G[e.to][e.rev].cap += d;
sum += d;
if (f - sum < base) break;
}
}
}
return sum;
}
public:
std::vector<std::vector<edge>> G;
Dinic(const int node_size) : V(node_size), level(V), iter(V), que(V), G(V) {}
//辺を張る
void add_edge(const int from, const int to, const T cap)
{
G[from].push_back((edge){to, cap, (int)G[to].size()});
G[to].push_back((edge){from, (T)0, (int)G[from].size() - 1});
}
//最大流を計算(max_cap は辺の容量の上限)
T solve(const int s, const int t, const T max_cap)
{
T flow = 0;
for (T base = floor2(max_cap); base >= 1;) {
bfs(s, base);
if (level[t] < 0) {
base >>= 1;
continue;
}
fill(iter.begin(), iter.end(), 0);
flow += dfs(s, t, base, std::numeric_limits<T>::max());
}
return flow;
}
};
int main()
{
const auto [H, W] = in_t<int, int>();
const auto G = in_v<ll>({H, W});
auto R = in_v<ll>({H});
auto C = in_v<ll>({W});
for (int i = 0; i < H; i++) {
for (int j = 0; j < W; j++) {
R[i] -= G[i][j];
C[j] -= G[i][j];
}
}
constexpr ll inf = TEN(9);
Dinic<ll> f(H * W + H + W + 2);
const int S = H * W + H + W;
const int T = H * W + H + W + 1;
ll ans = 0;
for (int i = 0; i < H; i++) {
if (R[i] <= 0) {
f.add_edge(i, T, -R[i]);
} else {
ans += R[i];
f.add_edge(S, i, R[i]);
}
}
for (int j = 0; j < W; j++) {
if (C[j] <= 0) {
f.add_edge(H + j, T, -C[j]);
} else {
ans += C[j];
f.add_edge(S, H + j, C[j]);
}
}
for (int i = 0; i < H; i++) {
for (int j = 0; j < W; j++) {
const int v = i * W + j + H + W;
ans += G[i][j];
if (R[i] <= 0) { f.add_edge(v, i, inf); }
if (C[j] <= 0) { f.add_edge(v, H + j, inf); }
f.add_edge(S, v, G[i][j]);
}
}
outln(ans - f.solve(S, T, inf));
return 0;
}