結果
| 問題 | No.1536 仕切り直し |
| コンテスト | |
| ユーザー |
stoq
|
| 提出日時 | 2021-06-06 18:24:33 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 21 ms / 2,000 ms |
| コード長 | 3,310 bytes |
| コンパイル時間 | 2,446 ms |
| コンパイル使用メモリ | 207,256 KB |
| 最終ジャッジ日時 | 2025-01-22 04:00:59 |
|
ジャッジサーバーID (参考情報) |
judge5 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 10 |
コンパイルメッセージ
main.cpp: In function ‘void solve()’:
main.cpp:131:7: warning: ‘Maxi’ may be used uninitialized [-Wmaybe-uninitialized]
131 | int j = Maxi;
| ^
main.cpp:123:7: note: ‘Maxi’ was declared here
123 | int Maxi;
| ^~~~
ソースコード
#define MOD_TYPE 2
#pragma region Macros
#include <bits/stdc++.h>
using namespace std;
#if 0
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/multiprecision/cpp_dec_float.hpp>
using Int = boost::multiprecision::cpp_int;
using lld = boost::multiprecision::cpp_dec_float_100;
#endif
#if 1
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#endif
using ll = long long int;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pld = pair<ld, ld>;
template <typename Q_type>
using smaller_queue = priority_queue<Q_type, vector<Q_type>, greater<Q_type>>;
constexpr ll MOD = (MOD_TYPE == 1 ? (ll)(1e9 + 7) : 998244353);
constexpr int INF = (int)1e9 + 10;
constexpr ll LINF = (ll)4e18;
constexpr ld PI = acos(-1.0);
constexpr ld EPS = 1e-7;
constexpr int Dx[] = {0, 0, -1, 1, -1, 1, -1, 1, 0};
constexpr int Dy[] = {1, -1, 0, 0, -1, -1, 1, 1, 0};
#define REP(i, m, n) for (ll i = m; i < (ll)(n); ++i)
#define rep(i, n) REP(i, 0, n)
#define REPI(i, m, n) for (int i = m; i < (int)(n); ++i)
#define repi(i, n) REPI(i, 0, n)
#define MP make_pair
#define MT make_tuple
#define YES(n) cout << ((n) ? "YES" : "NO") << "\n"
#define Yes(n) cout << ((n) ? "Yes" : "No") << "\n"
#define possible(n) cout << ((n) ? "possible" : "impossible") << "\n"
#define Possible(n) cout << ((n) ? "Possible" : "Impossible") << "\n"
#define all(v) v.begin(), v.end()
#define NP(v) next_permutation(all(v))
#define dbg(x) cerr << #x << ":" << x << "\n";
struct io_init
{
io_init()
{
cin.tie(0);
ios::sync_with_stdio(false);
cout << setprecision(30) << setiosflags(ios::fixed);
};
} io_init;
template <typename T>
inline bool chmin(T &a, T b)
{
if (a > b)
{
a = b;
return true;
}
return false;
}
template <typename T>
inline bool chmax(T &a, T b)
{
if (a < b)
{
a = b;
return true;
}
return false;
}
inline ll CEIL(ll a, ll b)
{
return (a + b - 1) / b;
}
template <typename A, size_t N, typename T>
inline void Fill(A (&array)[N], const T &val)
{
fill((T *)array, (T *)(array + N), val);
}
template <typename T, typename U>
constexpr istream &operator>>(istream &is, pair<T, U> &p) noexcept
{
is >> p.first >> p.second;
return is;
}
template <typename T, typename U>
constexpr ostream &operator<<(ostream &os, pair<T, U> &p) noexcept
{
os << p.first << " " << p.second;
return os;
}
#pragma endregion
// --------------------------------------
ll dp[2010][2010];
void solve()
{
Fill(dp, -LINF);
int n, m;
cin >> n >> m;
vector<ll> a(n);
rep(i, n) cin >> a[i];
dp[0][0] = 0;
rep(i, n) rep(j, m + 1)
{
int s = (j % 2 == 0 ? 1 : -1);
if (j < m)
{
chmax(dp[i + 1][j + 1], dp[i][j] - a[i] * s);
}
chmax(dp[i + 1][j], dp[i][j] + a[i] * s);
}
ll Max = -LINF;
int Maxi;
rep(j, m + 1)
{
if (chmax(Max, dp[n][j]))
Maxi = j;
}
vector<int> ans;
int j = Maxi;
for (int i = n; i >= 1; i--)
{
int s = (j % 2 == 0 ? 1 : -1);
if (dp[i][j] == dp[i - 1][j] + a[i - 1] * s)
{
;
}
else
{
j--;
ans.push_back(i - 1);
}
}
reverse(all(ans));
while (ans.size() < m)
ans.push_back(n);
rep(i, ans.size()) cout << ans[i] << (i + 1 == ans.size() ? "\n" : " ");
}
int main()
{
solve();
}
stoq