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답안 #1017316

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1017316 2024-07-09T07:22:26 Z binminh01 Feast (NOI19_feast) C++17
100 / 100
 414 ms 12368 KB 
#include<bits/allocator.h>
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,fma,bmi,bmi2,popcnt,lzcnt")
 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define int128 __int128_t
#define double long double
#define gcd __gcd
#define lcm(a, b) ((a)/gcd(a, b)*(b))
#define sqrt sqrtl
#define log2 log2l
#define log10 log10l
#define floor floorl
#define to_string str
#define yes cout << "YES"
#define no cout << "NO"
#define trav(i, a) for (auto &i: (a))
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define sz(a) (int)a.size()
#define Max(a) *max_element(all(a))
#define Min(a) *min_element(all(a))
#define Find(a, n) (find(all(a), n) - a.begin())
#define Count(a, n) count(all(a), n)
#define Upper(a, n) (upper_bound(all(a), n) - a.begin())
#define Lower(a, n) (lower_bound(all(a), n) - a.begin())
#define next_perm(a) next_permutation(all(a))
#define prev_perm(a) prev_permutation(all(a))
#define sorted(a) is_sorted(all(a))
#define sum(a) accumulate(all(a), 0)
#define sumll(a) accumulate(all(a), 0ll)
#define Sort(a) sort(all(a))
#define Reverse(a) reverse(all(a))
#define Unique(a) Sort(a), (a).resize(unique(all(a)) - a.begin())
#define pb push_back
#define eb emplace_back
#define popcount __builtin_popcount
#define popcountll __builtin_popcountll
#define clz __builtin_clz
#define clzll __builtin_clzll
#define ctz __builtin_ctz
#define ctzll __builtin_ctzll
#define open(s) freopen(s, "r", stdin)
#define write(s) freopen(s, "w", stdout)
#define fileopen(s) open((string(s) + ".inp").c_str()), write((string(s) + ".out").c_str());
#define For(i, a, b) for (auto i = (a); i < (b); i++)
#define Fore(i, a, b) for (auto i = (a); i >= (b); i--)
#define FOR(i, a, b) for (auto i = (a); i <= (b); i++)
#define ret(s) return void(cout << s);
 
const int mod = 1e9 + 7, mod2 = 998244353;
const double PI = acos(-1), eps = 1e-9;
const ull npos = string::npos;
const int dx[] = {0, 0, -1, 1}, dy[] = {-1, 1, 0, 0};
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using cd = complex<double>;
mt19937 mt(chrono::system_clock::now().time_since_epoch().count());
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<double> vdo;
typedef vector<vdo> vvdo;
typedef vector<string> vs;
typedef vector<pii> vpair;
typedef vector<vpair> vvpair;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vector<char> vc;
typedef vector<vc> vvc;
typedef vector<cd> vcd;
typedef priority_queue<int> pq;
typedef priority_queue<int, vi, greater<int>> pqg;
typedef priority_queue<ll> pqll;
typedef priority_queue<ll, vll, greater<ll>> pqgll;
 
ll add(ll a, ll b, int m) {if (a >= m) a%=m;if (b >= m) b%=m;a+=b;return a >= m ? a - m: a;}
ll sub(ll a, ll b, int m) {if (a >= m) a%=m;if (b >= m) b%=m;a-=b;return a < 0 ? a + m: a;}
ll mul(ll a, ll b, int m) {if (a >= m) a%=m;if (b >= m) b%=m;return a*b % m;}
ll bin_mul(ll a, ll b, ll m) {if (a >= m) a%=m;if (b >= m) b%=m;ll x = 0;while (b) {if (b & 1) x = (x + a) % m;a = (a + a) % m;b>>=1;}return x;}
ll power(ll a, ll b, int m) {ll x = 1;if (a >= m) a%=m; while (b) {if (b & 1) x = x*a % m;a = a*a % m;b>>=1;}return x;}
ll power(ll a, ll b) {ll x = 1;while (b) {if (b & 1) x = x*a;a = a*a;b>>=1;}return x;}
ll ceil(ll a, ll b) {return (a + b - 1)/b;}
ll to_int(const string &s) {ll x = 0; for (int i = (s[0] == '-'); i < sz(s); i++) x = x*10 + s[i] - '0';return x*(s[0] == '-' ? -1: 1);}
bool is_prime(ll n) {if (n < 2) return 0;if (n < 4) return 1;if (n % 2 == 0 || n % 3 == 0) return 0;for (ll i = 5; i*i <= n; i+=6) {if(n % i == 0 || n % (i + 2) == 0) return 0;}return 1;}
bool is_square(ll n) {ll k = sqrt(n); return k*k == n;}
ll factorial(int n) {ll x = 1;for (int i = 2; i <= n; i++) x*=i;return x;}
ll factorial(int n, int m) {ll x = 1;for (ll i = 2; i <= n; i++) x = x*i % m;return x;}
bool is_power(ll n, ll k) {while (n % k == 0) n/=k;return n == 1ll;}
string str(ll n) {if (n == 0) return "0"; string s = ""; bool c = 0; if (n < 0) c = 1, n = -n; while (n) {s+=n % 10 + '0'; n/=10;} if (c) s+='-'; Reverse(s); return s;}
string repeat(const string &s, int n) {if (n < 0) return ""; string x = ""; while (n--) x+=s; return x;}
string bin(ll n) {string s = ""; while (n) {s+=(n & 1) + '0'; n>>=1;} Reverse(s); return s;}
void sieve(vector<bool> &a) {int n = a.size(); a[0] = a[1] = 0; for (int i = 4; i < n; i+=2) a[i] = 0; for (int i = 3; i*i < n; i+=2) {if (a[i]) {for (int j = i*i; j < n; j+=(i << 1)) a[j] = 0;}}}
void sieve(bool a[], int n) {a[0] = a[1] = 0; for (int i = 4; i < n; i+=2) a[i] = 0; for (int i = 3; i*i < n; i+=2) {if (a[i]) {for (int j = i*i; j < n; j+=(i << 1)) a[j] = 0;}}}
void sieve(vector<int> &a) {int n = a.size(); for (int i = 2; i < n; i+=2) a[i] = 2; for (int i = 3; i*i < n; i+=2) {if (!a[i]) {for (int j = i; j < n; j+=(i << 1)) a[j] = i;}} for (int i = 3; i < n; i+=2) {if (!a[i]) a[i] = i;}}
void sieve(int a[], int n) {for (int i = 2; i < n; i+=2) a[i] = 2; for (int i = 3; i*i < n; i+=2) {if (!a[i]) {for (int j = i; j < n; j+=(i << 1)) a[j] = i;}} for (int i = 3; i < n; i+=2) {if (!a[i]) a[i] = i;}}
vector<pii> factorize(int n) {vector<pii> a; for (int i = 2; i*i <= n; i++) {if (n % i == 0) {int k = 0; while (n % i == 0) k++, n/=i; a.emplace_back(i, k);}} if (n > 1) a.emplace_back(n, 1); return a;}
int rand(int l, int r) {return uniform_int_distribution<int>(l, r)(mt);}
int Log2(int n) {return 31 - __builtin_clz(n);}
template<class T> void compress(vector<T> &a) {vector<T> b; for (T &i: a) b.push_back(i); sort(all(b)); b.resize(unique(all(b)) - b.begin()); for (T &i: a) i = lower_bound(all(b), i) - b.begin() + 1;}
 
template<class A, class B> istream& operator>>(istream& in, pair<A, B> &p) {in >> p.first >> p.second; return in;}
template<class A, class B> ostream& operator<<(ostream& out, const pair<A, B> &p) {out << p.first << ' ' << p.second; return out;}
template<class T> istream& operator>>(istream& in, vector<T> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const vector<T> &a) {for (auto &i: a) out << i << ' '; return out;}
template<class T> istream& operator>>(istream& in, vector<vector<T>> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const vector<vector<T>> &a) {for (auto &i: a) out << i << '\n'; return out;}
template<class T> istream& operator>>(istream& in, deque<T> &a) {for (auto &i: a) in >> i; return in;}
template<class T> ostream& operator<<(ostream& out, const deque<T> &a) {for (auto &i: a) out << i << ' '; return out;}
// istream& operator>>(istream& in, __int128_t &a) {string s; in >> s; a = 0; for (auto &i: s) a = a*10 + (i - '0'); return in;}
// ostream& operator<<(ostream& out, __int128_t a) {string s = ""; while (a > 0) {s+=(int)a % 10 + '0'; a/=10;} Reverse(s); out << s; return out;}
 
const int N = 3e5 + 5;
int n, k;
ll a[N];
pair<ll, int> f[N][2];
int main() {
    ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
    cout << fixed << setprecision(10);
    f[0][1] = {-1e18, 0};
    cin >> n >> k;
    FOR(i,1,n) cin >> a[i];
    ll l = 0, r = 1e18;
    while (l < r) {
        ll m = (l + r) >> 1;
        pair<ll, int> x = {-1e18, 0};
        FOR(i,1,n){
            f[i][0] = max(f[i - 1][0], f[i - 1][1]);
            f[i][1] = max(make_pair(f[i - 1][0].first + a[i] - m, f[i - 1][0].second + 1), 
            make_pair(f[i - 1][1].first + a[i], f[i - 1][1].second));
            x = max({x, f[i][0], f[i][1]});
        }
        if (x.second <= k) r = m;
        else l = m + 1;
    }
    pair<ll, int> x = {-1e18, 0};
    FOR(i,1,n){
        f[i][0] = max(f[i - 1][0], f[i - 1][1]);
        f[i][1] = max(make_pair(f[i - 1][0].first + a[i] - l, f[i - 1][0].second + 1), 
        make_pair(f[i - 1][1].first + a[i], f[i - 1][1].second));
        x = max({x, f[i][0], f[i][1]});
    }
    cout << max(0ll, x.first + l*x.second);
    return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 317 ms 11604 KB Output is correct
2 Correct 313 ms 12112 KB Output is correct
3 Correct 327 ms 12124 KB Output is correct
4 Correct 319 ms 12112 KB Output is correct
5 Correct 317 ms 12112 KB Output is correct
6 Correct 296 ms 12112 KB Output is correct
7 Correct 321 ms 12116 KB Output is correct
8 Correct 310 ms 12116 KB Output is correct
9 Correct 316 ms 12108 KB Output is correct
10 Correct 311 ms 12120 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 344 ms 12368 KB Output is correct
2 Correct 346 ms 12176 KB Output is correct
3 Correct 323 ms 12116 KB Output is correct
4 Correct 328 ms 12120 KB Output is correct
5 Correct 313 ms 12120 KB Output is correct
6 Correct 313 ms 12120 KB Output is correct
7 Correct 323 ms 12120 KB Output is correct
8 Correct 338 ms 12168 KB Output is correct
9 Correct 308 ms 11856 KB Output is correct
10 Correct 327 ms 12368 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 359 ms 12112 KB Output is correct
2 Correct 356 ms 12124 KB Output is correct
3 Correct 359 ms 11988 KB Output is correct
4 Correct 353 ms 12124 KB Output is correct
5 Correct 354 ms 12124 KB Output is correct
6 Correct 366 ms 12124 KB Output is correct
7 Correct 357 ms 12116 KB Output is correct
8 Correct 368 ms 11980 KB Output is correct
9 Correct 355 ms 12180 KB Output is correct
10 Correct 362 ms 12168 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2648 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 0 ms 2476 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2648 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 0 ms 2476 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2648 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 0 ms 2476 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 3 ms 2576 KB Output is correct
22 Correct 3 ms 2396 KB Output is correct
23 Correct 3 ms 2396 KB Output is correct
24 Correct 3 ms 2396 KB Output is correct
25 Correct 3 ms 2516 KB Output is correct
26 Correct 3 ms 2516 KB Output is correct
27 Correct 3 ms 2576 KB Output is correct
28 Correct 3 ms 348 KB Output is correct
29 Correct 3 ms 600 KB Output is correct
30 Correct 3 ms 348 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 317 ms 11604 KB Output is correct
2 Correct 313 ms 12112 KB Output is correct
3 Correct 327 ms 12124 KB Output is correct
4 Correct 319 ms 12112 KB Output is correct
5 Correct 317 ms 12112 KB Output is correct
6 Correct 296 ms 12112 KB Output is correct
7 Correct 321 ms 12116 KB Output is correct
8 Correct 310 ms 12116 KB Output is correct
9 Correct 316 ms 12108 KB Output is correct
10 Correct 311 ms 12120 KB Output is correct
11 Correct 344 ms 12368 KB Output is correct
12 Correct 346 ms 12176 KB Output is correct
13 Correct 323 ms 12116 KB Output is correct
14 Correct 328 ms 12120 KB Output is correct
15 Correct 313 ms 12120 KB Output is correct
16 Correct 313 ms 12120 KB Output is correct
17 Correct 323 ms 12120 KB Output is correct
18 Correct 338 ms 12168 KB Output is correct
19 Correct 308 ms 11856 KB Output is correct
20 Correct 327 ms 12368 KB Output is correct
21 Correct 359 ms 12112 KB Output is correct
22 Correct 356 ms 12124 KB Output is correct
23 Correct 359 ms 11988 KB Output is correct
24 Correct 353 ms 12124 KB Output is correct
25 Correct 354 ms 12124 KB Output is correct
26 Correct 366 ms 12124 KB Output is correct
27 Correct 357 ms 12116 KB Output is correct
28 Correct 368 ms 11980 KB Output is correct
29 Correct 355 ms 12180 KB Output is correct
30 Correct 362 ms 12168 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 0 ms 2396 KB Output is correct
33 Correct 0 ms 2396 KB Output is correct
34 Correct 0 ms 2396 KB Output is correct
35 Correct 0 ms 2396 KB Output is correct
36 Correct 0 ms 2396 KB Output is correct
37 Correct 1 ms 2648 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 0 ms 2476 KB Output is correct
41 Correct 1 ms 2392 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2392 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2396 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 3 ms 2576 KB Output is correct
52 Correct 3 ms 2396 KB Output is correct
53 Correct 3 ms 2396 KB Output is correct
54 Correct 3 ms 2396 KB Output is correct
55 Correct 3 ms 2516 KB Output is correct
56 Correct 3 ms 2516 KB Output is correct
57 Correct 3 ms 2576 KB Output is correct
58 Correct 3 ms 348 KB Output is correct
59 Correct 3 ms 600 KB Output is correct
60 Correct 3 ms 348 KB Output is correct
61 Correct 395 ms 11856 KB Output is correct
62 Correct 404 ms 12368 KB Output is correct
63 Correct 384 ms 11948 KB Output is correct
64 Correct 414 ms 11920 KB Output is correct
65 Correct 401 ms 12164 KB Output is correct
66 Correct 397 ms 12044 KB Output is correct
67 Correct 400 ms 11940 KB Output is correct
68 Correct 362 ms 12168 KB Output is correct
69 Correct 356 ms 11868 KB Output is correct
70 Correct 354 ms 12116 KB Output is correct