結果

問題 No.2386 Udon Coupon (Easy)
ユーザー OnjoujiToki
提出日時 2023-07-21 21:43:03
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 18 ms / 2,000 ms
コード長 4,005 bytes
コンパイル時間 1,261 ms
コンパイル使用メモリ 128,256 KB
最終ジャッジ日時 2025-02-15 16:40:27
ジャッジサーバーID
(参考情報)
judge5 / 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 * 37
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 <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <complex>
#include <cstdint>
#include <cstring>
#include <ctime>
#include <deque>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <unordered_map>
#include <unordered_set>
using namespace std;
template <int mod>
struct ModInt {
int x;
ModInt() : x(0) {}
ModInt(long long y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}
ModInt &operator+=(const ModInt &p) {
if ((x += p.x) >= mod) x -= mod;
return *this;
}
ModInt &operator-=(const ModInt &p) {
if ((x += mod - p.x) >= mod) x -= mod;
return *this;
}
ModInt &operator*=(const ModInt &p) {
x = (int)(1LL * x * p.x % mod);
return *this;
}
ModInt &operator/=(const ModInt &p) {
*this *= p.inverse();
return *this;
}
ModInt &operator^=(long long p) { // quick_pow here:3
ModInt res = 1;
for (; p; p >>= 1) {
if (p & 1) res *= *this;
*this *= *this;
}
return *this = res;
}
ModInt operator-() const { return ModInt(-x); }
ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; }
ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; }
ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; }
ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; }
ModInt operator^(long long p) const { return ModInt(*this) ^= p; }
bool operator==(const ModInt &p) const { return x == p.x; }
bool operator!=(const ModInt &p) const { return x != p.x; }
explicit operator int() const { return x; } // added by QCFium
ModInt operator=(const int p) {
x = p;
return ModInt(*this);
} // added by QCFium
ModInt inverse() const {
int a = x, b = mod, u = 1, v = 0, t;
while (b > 0) {
t = a / b;
a -= t * b;
std::swap(a, b);
u -= t * v;
std::swap(u, v);
}
return ModInt(u);
}
friend std::ostream &operator<<(std::ostream &os, const ModInt<mod> &p) {
return os << p.x;
}
friend std::istream &operator>>(std::istream &is, ModInt<mod> &a) {
long long x;
is >> x;
a = ModInt<mod>(x);
return (is);
}
};
struct Mo {
int n;
std::vector<std::pair<int, int>> lr;
explicit Mo(int n) : n(n) {}
void add(int l, int r) { /* [l, r) */
lr.emplace_back(l, r);
}
template <typename AL, typename AR, typename EL, typename ER, typename O>
void build(const AL &add_left, const AR &add_right, const EL &erase_left,
const ER &erase_right, const O &out) {
int q = (int)lr.size();
int bs = n / std::min<int>(n, sqrt(q));
std::vector<int> ord(q);
std::iota(std::begin(ord), std::end(ord), 0);
std::sort(std::begin(ord), std::end(ord), [&](int a, int b) {
int ablock = lr[a].first / bs, bblock = lr[b].first / bs;
if (ablock != bblock) return ablock < bblock;
return (ablock & 1) ? lr[a].second > lr[b].second
: lr[a].second < lr[b].second;
});
int l = 0, r = 0;
for (auto idx : ord) {
while (l > lr[idx].first) add_left(--l);
while (r < lr[idx].second) add_right(r++);
while (l < lr[idx].first) erase_left(l++);
while (r > lr[idx].second) erase_right(--r);
out(idx);
}
}
template <typename A, typename E, typename O>
void build(const A &add, const E &erase, const O &out) {
build(add, add, erase, erase, out);
}
};
void solve() {
int n, a, b, c;
std::cin >> n;
std::cin >> a >> b >> c;
std::vector<long long> dp(n + 1);
for (int i = 3; i <= n; i++) {
if (i >= 3) dp[i] = std::max(dp[i], dp[i - 3] + a);
if (i >= 5) dp[i] = std::max(dp[i], dp[i - 5] + b);
if (i >= 10) dp[i] = std::max(dp[i], dp[i - 10] + c);
}
std::cout << dp[n] << '\n';
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int t = 1;
while (t--) solve();
return 0;
}
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