結果
| 問題 | No.1117 数列分割 |
| ユーザー |
 Shuz*
|
| 提出日時 | 2020-07-18 10:11:52 |
| 言語 | C++14 (gcc 13.2.0 + boost 1.83.0) |
| 結果 |
AC
|
| 実行時間 | 929 ms / 3,000 ms |
| コード長 | 6,790 bytes |
| コンパイル時間 | 1,543 ms |
| コンパイル使用メモリ | 177,940 KB |
| 実行使用メモリ | 4,380 KB |
| 最終ジャッジ日時 | 2023-08-20 17:08:38 |
| 合計ジャッジ時間 | 11,141 ms |
|
ジャッジサーバーID （参考情報） |
judge12 / judge11 |
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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 | 2 ms
4,376 KB |
| testcase_01 | AC | 1 ms
4,376 KB |
| testcase_02 | AC | 1 ms
4,380 KB |
| testcase_03 | AC | 71 ms
4,376 KB |
| testcase_04 | AC | 60 ms
4,380 KB |
| testcase_05 | AC | 1 ms
4,376 KB |
| testcase_06 | AC | 3 ms
4,380 KB |
| testcase_07 | AC | 2 ms
4,376 KB |
| testcase_08 | AC | 49 ms
4,380 KB |
| testcase_09 | AC | 17 ms
4,376 KB |
| testcase_10 | AC | 53 ms
4,376 KB |
| testcase_11 | AC | 206 ms
4,376 KB |
| testcase_12 | AC | 252 ms
4,376 KB |
| testcase_13 | AC | 305 ms
4,380 KB |
| testcase_14 | AC | 313 ms
4,380 KB |
| testcase_15 | AC | 444 ms
4,376 KB |
| testcase_16 | AC | 491 ms
4,376 KB |
| testcase_17 | AC | 50 ms
4,380 KB |
| testcase_18 | AC | 823 ms
4,376 KB |
| testcase_19 | AC | 929 ms
4,376 KB |
| testcase_20 | AC | 412 ms
4,376 KB |
| testcase_21 | AC | 494 ms
4,376 KB |
| testcase_22 | AC | 880 ms
4,380 KB |
| testcase_23 | AC | 913 ms
4,380 KB |
| testcase_24 | AC | 872 ms
4,380 KB |
| testcase_25 | AC | 904 ms
4,380 KB |
| testcase_26 | AC | 1 ms
4,380 KB |
| testcase_27 | AC | 32 ms
4,376 KB |
| testcase_28 | AC | 32 ms
4,376 KB |
ソースコード
#include <bits/stdc++.h>
using namespace std;
// Define
using ll = long long;
using ull = unsigned long long;
using ld = long double;
template <class T> using pvector = vector<pair<T, T>>;
template <class T>
using rpriority_queue = priority_queue<T, vector<T>, greater<T>>;
constexpr const ll dx[4] = {1, 0, -1, 0};
constexpr const ll dy[4] = {0, 1, 0, -1};
constexpr const ll MOD = 1e9 + 7;
constexpr const ll mod = 998244353;
constexpr const ll INF = 1LL << 60;
constexpr const ll inf = 1 << 30;
constexpr const char rt = '\n';
constexpr const char sp = ' ';
#define rt(i, n) (i == (ll)(n) -1 ? rt : sp)
#define len(x) ((ll)(x).size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define eb emplace_back
#define ifn(x) if (not(x))
#define elif else if
#define elifn else ifn
#define fi first
#define se second
template <class T> bool chmax(T &a, const T &b) {
if (a < b) {
a = b;
return 1;
}
return 0;
}
template <class T> bool chmin(T &a, const T &b) {
if (a > b) {
a = b;
return 1;
}
return 0;
}
// Debug
#define debug(...) \
{ \
cerr << __LINE__ << ": " << #__VA_ARGS__ << " = "; \
for (auto &&X : {__VA_ARGS__}) cerr << "[" << X << "] "; \
cerr << rt; \
}
#define dump(a, h, w) \
{ \
cerr << __LINE__ << ": " << #a << " = [" << rt; \
rep(_i, h) { \
rep(_j, w) { \
if (abs(a[_i][_j]) >= INF / 2 and a[_i][_j] <= -INF / 2) \
cerr << '-'; \
if (abs(a[_i][_j]) >= INF / 2) \
cerr << "∞" << sp; \
else \
cerr << a[_i][_j] << sp; \
} \
cerr << rt; \
} \
cerr << "]" << rt; \
}
#define vdump(a, n) \
{ \
cerr << __LINE__ << ": " << #a << " = ["; \
rep(_i, n) { \
if (_i) cerr << sp; \
if (abs(a[_i]) >= INF / 2 and a[_i] <= -INF / 2) cerr << '-'; \
if (abs(a[_i]) >= INF / 2) \
cerr << "∞" << sp; \
else \
cerr << a[_i]; \
} \
cerr << "]" << rt; \
}
// Loop
#define inc(i, a, n) for (ll i = (a), _##i = (n); i <= _##i; ++i)
#define dec(i, a, n) for (ll i = (a), _##i = (n); i >= _##i; --i)
#define rep(i, n) for (ll i = 0, _##i = (n); i < _##i; ++i)
#define each(i, a) for (auto &&i : a)
// Stream
#define fout(n) cout << fixed << setprecision(n)
struct io {
io() { cin.tie(nullptr), ios::sync_with_stdio(false); }
} io;
// Speed
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
// Math
inline constexpr ll gcd(const ll a, const ll b) {
return b ? gcd(b, a % b) : a;
}
inline constexpr ll lcm(const ll a, const ll b) { return a / gcd(a, b) * b; }
inline constexpr ll modulo(const ll n, const ll m = MOD) {
ll k = n % m;
return k + m * (k < 0);
}
inline constexpr ll chmod(ll &n, const ll m = MOD) {
n %= m;
return n += m * (n < 0);
}
inline constexpr ll mpow(ll a, ll n, const ll m = MOD) {
ll r = 1;
rep(i, 64) {
if (n & (1LL << i)) r *= a;
chmod(r, m);
a *= a;
chmod(a, m);
}
return r;
}
inline ll inv(const ll n, const ll m = MOD) {
ll a = n, b = m, x = 1, y = 0;
while (b) {
ll t = a / b;
a -= t * b;
swap(a, b);
x -= t * y;
swap(x, y);
}
return modulo(x, m);
}
template <class T = ll> struct SWA {
using op = function<T(T, T)>;
vector<T> A, B;
deque<T> D;
op f;
SWA(op f = [](ll a, ll b) { return max(a, b); }) : f(f) {}
void flip() {
if (A.size() == 0) {
B.clear();
for (auto i = D.end() - 1; i >= D.begin(); i--) {
if (i == D.end() - 1) {
A.push_back(*i);
} else {
A.push_back(f(A.back(), *i));
}
}
}
}
T operator()() {
flip();
if (A.size() == 0) {
abort();
} else if (B.size() == 0) {
return A.back();
} else {
return f(A.back(), B.back());
}
}
void push(T x) {
D.push_back(x);
if (B.size() == 0) {
B.push_back(x);
} else {
B.push_back(f(B.back(), x));
}
}
void pop() {
flip();
if (A.size() == 0) {
abort();
} else {
A.pop_back();
D.pop_front();
}
}
size_t size() { return D.size(); }
};
ll DP[3001];
signed main() {
ll N, M, K;
cin >> N >> K >> M;
ll A[N + 1] = {};
rep(i, N) cin >> A[i + 1];
rep(i, N) A[i + 1] += A[i];
inc(i, 0, N) DP[i] = -INF;
DP[0] = 0;
rep(j, K) {
SWA<ll> swa[2];
inc(i, 0, N) {
ll mem = DP[i];
swa[0].push(mem - A[i]);
swa[1].push(mem + A[i]);
DP[i] = max(swa[0]() + A[i], swa[1]() - A[i]);
if (i - M >= 0) {
rep(k, 2) swa[k].pop();
}
}
}
cout << DP[N] << rt;
}