結果

問題 No.2889 Rusk
ユーザー MMRZ
提出日時 2024-09-13 22:00:54
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 92 ms / 2,000 ms
コード長 3,372 bytes
コンパイル時間 3,513 ms
コンパイル使用メモリ 253,040 KB
実行使用メモリ 7,936 KB
最終ジャッジ日時 2024-09-13 22:01:13
合計ジャッジ時間 7,309 ms
ジャッジサーバーID
(参考情報)
judge6 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 52
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

·# include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
const double pi = acos(-1);
template<class T>constexpr T inf() { return ::std::numeric_limits<T>::max(); }
template<class T>constexpr T hinf() { return inf<T>() / 2; }
template <typename T_char>T_char TL(T_char cX) { return tolower(cX); }
template <typename T_char>T_char TU(T_char cX) { return toupper(cX); }
template<class T> bool chmin(T& a,T b) { if(a > b){a = b; return true;} return false; }
template<class T> bool chmax(T& a,T b) { if(a < b){a = b; return true;} return false; }
int popcnt(unsigned long long n) { int cnt = 0; for (int i = 0; i < 64; i++)if ((n >> i) & 1)cnt++; return cnt; }
int d_sum(ll n) { int ret = 0; while (n > 0) { ret += n % 10; n /= 10; }return ret; }
int d_cnt(ll n) { int ret = 0; while (n > 0) { ret++; n /= 10; }return ret; }
ll gcd(ll a, ll b) { if (b == 0)return a; return gcd(b, a%b); };
ll lcm(ll a, ll b) { ll g = gcd(a, b); return a / g*b; };
ll MOD(ll x, ll m){return (x%m+m)%m; }
ll FLOOR(ll x, ll m) {ll r = (x%m+m)%m; return (x-r)/m; }
template<class T> using dijk = priority_queue<T, vector<T>, greater<T>>;
# define all(qpqpq) (qpqpq).begin(),(qpqpq).end()
# define UNIQUE(wpwpw) (wpwpw).erase(unique(all((wpwpw))),(wpwpw).end())
# define LOWER(epepe) transform(all((epepe)),(epepe).begin(),TL<char>)
# define UPPER(rprpr) transform(all((rprpr)),(rprpr).begin(),TU<char>)
# define rep(i,upupu) for(ll i = 0, i##_len = (upupu);(i) < (i##_len);(i)++)
# define reps(i,opopo) for(ll i = 1, i##_len = (opopo);(i) <= (i##_len);(i)++)
# define len(x) ((ll)(x).size())
# define bit(n) (1LL << (n))
# define pb push_back
# define exists(c, e) ((c).find(e) != (c).end())
struct INIT{
INIT(){
std::ios::sync_with_stdio(false);
std::cin.tie(0);
cout << fixed << setprecision(20);
}
}INIT;
namespace mmrz {
void solve();
}
int main(){
mmrz::solve();
}
#define debug(...) (static_cast<void>(0))
using namespace mmrz;
void SOLVE(){
int n;
cin >> n;
vector<ll> a(n), b(n), c(n);
for(auto &x : a)cin >> x;
for(auto &x : b)cin >> x;
for(auto &x : c)cin >> x;
ll ans = 0;
{
vector dp(5, 0LL);
rep(i, n){
vector ndp(5, 0LL);
chmax(ndp[0], dp[0] + a[i]);
chmax(ndp[1], dp[0] + b[i]);
chmax(ndp[1], dp[1] + b[i]);
chmax(ndp[2], dp[1] + c[i]);
chmax(ndp[2], dp[2] + c[i]);
chmax(ndp[3], dp[2] + b[i]);
chmax(ndp[3], dp[3] + b[i]);
chmax(ndp[4], dp[3] + a[i]);
chmax(ndp[4], dp[4] + a[i]);
dp = ndp;
}
rep(i, 5)chmax(ans, dp[i]);
}
{
vector dp(5, 0LL);
rep(i, n){
vector ndp(5, 0LL);
chmax(ndp[0], dp[0] + a[i]);
chmax(ndp[1], dp[0] + b[i]);
chmax(ndp[1], dp[1] + b[i]);
chmax(ndp[2], dp[1] + a[i]);
chmax(ndp[2], dp[2] + a[i]);
chmax(ndp[3], dp[2] + b[i]);
chmax(ndp[3], dp[3] + b[i]);
chmax(ndp[4], dp[3] + a[i]);
chmax(ndp[4], dp[4] + a[i]);
dp = ndp;
}
rep(i, 5)chmax(ans, dp[i]);
}
{
vector dp(3, 0LL);
rep(i, n){
vector ndp(3, 0LL);
chmax(ndp[0], dp[0] + a[i]);
chmax(ndp[1], dp[0] + c[i]);
chmax(ndp[1], dp[1] + c[i]);
chmax(ndp[2], dp[1] + a[i]);
chmax(ndp[2], dp[2] + a[i]);
dp = ndp;
}
rep(i, 3)chmax(ans, dp[i]);
}
cout << ans << endl;
}
void mmrz::solve(){
int t = 1;
//cin >> t;
while(t--)SOLVE();
}
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