結果
| 問題 | No.324 落ちてた閉路グラフ |
| ユーザー |
 Konton7
|
| 提出日時 | 2020-07-06 23:31:38 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 136 ms / 5,000 ms |
| コード長 | 6,166 bytes |
| コンパイル時間 | 3,214 ms |
| コンパイル使用メモリ | 204,244 KB |
| 最終ジャッジ日時 | 2025-01-11 16:26:59 |
|
ジャッジサーバーID （参考情報） |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 34 |
ソースコード
#include <bits/stdc++.h>using namespace std;using ll = long long;using VI = vector<int>;using VL = vector<ll>;using VS = vector<string>;using VB = vector<bool>;using VVI = vector<VI>;using VVL = vector<VL>;using PII = std::pair<int, int>;using VPII = std::vector<std::pair<int, int>>;using PLL = std::pair<ll, ll>;using VPLL = std::vector<std::pair<ll, ll>>;using TI3 = std::tuple<int, int, int>;using TI4 = std::tuple<int, int, int, int>;using TL3 = std::tuple<ll, ll, ll>;using TL4 = std::tuple<ll, ll, ll, ll>;#define rep(i, n) for (int i = 0; i < (int)(n); i++)#define repr(i, n) for (int i = (int)(n)-1; i >= 0; i--)#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)#define rep3(i, s, n, d) for (int i = (s); i < (int)(n); i += (d))#define allpt(v) (v).begin(), (v).end()#define allpt_c(v) (v).cbegin(), (v).cend()#define allpt_r(v) (v).rbegin(), (v).rend()#define allpt_cr(v) (v).crbegin(), (v).crend()const int mod1 = 1e9 + 7, mod2 = 998244353, mod3 = 1e9 + 9;const int mod = mod1;const ll inf = 1e18;const string wsp = " ";const string tb = "\t";const string rt = "\n";template <typename T>void show1dvec(const vector<T> &v){if (v.size() == 0)return;int n = v.size() - 1;rep(i, n) cout << v[i] << wsp;cout << v[n] << rt;return;}template <typename T>void show2dvec(const vector<vector<T>> &v){int n = v.size();rep(i, n) show1dvec(v[i]);}template <typename T, typename S>void show1dpair(const vector<pair<T, S>> &v){int n = v.size();rep(i, n) cout << v[i].first << wsp << v[i].second << rt;return;}template <typename T, typename S>void pairzip(const vector<pair<T, S>> &v, vector<T> &t, vector<T> &s){int n = v.size();rep(i, n){t.push_back(v[i].first);s.push_back(v[i].second);}return;}template <typename T>void maxvec(vector<T> &v){T s = v[0];int n = v.size();rep(i, n - 1){if (s > v[i + 1]){v[i + 1] = s;}s = v[i + 1];}}template <typename T, typename S>bool myfind(T t, S s){return find(t.cbegin(), t.cend(), s) != t.cend();}bool check(int y, int x, int h, int w){return 0 <= y && y < h && 0 <= x && x < w;}template <typename T>vector<T> cumsum(const vector<T> &v){T s = 0;vector<T> ret;rep(i, v.size()){s += v[i];s %= mod;ret.emplace_back(s);}return ret;}bool iskadomatsu(int a, int b, int c){return (a != b && b != c && c != a) && ((a > b && b < c) || (a < b && b > c));}VS split(string s, char c){VS ret;string part;s += c;rep(i, s.length()){if (s[i] == c){ret.emplace_back(part);part = "";}else if (s[i] != c){part += s[i];}}return ret;}string removezero(string &s){string ret;for (auto z : s)if (z != '0')ret += z;return ret;}ll sumdigit(ll x){ll ans{0};while (x > 0){ans += x % 10;x /= 10;}return ans;}template <typename T, typename S, typename R>ll pow_mod(T p, S q, R mod = 1ll){ll ret = 1, r = p;while (q){if (q % 2)ret *= r, ret %= mod;r = (r * r) % mod, q /= 2;}return ret % mod;}template <typename T, typename S>ll pow_no_mod(T p, S q){ll ret = 1, r = p;while (q){if (q % 2)ret *= r;r = (r * r), q /= 2;}return ret;}void make_frac_tables(VL &frac_list, VL &frac_inv_list){rep(i, frac_list.size() - 1){frac_list[i + 1] *= frac_list[i] * (i + 1);frac_list[i + 1] %= mod;frac_inv_list[i + 1] *= frac_inv_list[i] * pow_mod(i + 1, mod - 2, mod);frac_inv_list[i + 1] %= mod;}}ll comb(int a, int b, const VL &frac_list, const VL &frac_inv_list){if (a < b)return 0;if (b < 0)return 0;ll ret = frac_list[a];ret *= frac_inv_list[b];ret %= mod;ret *= frac_inv_list[a - b];ret %= mod;return ret;}int main(){cin.tie(0);ios::sync_with_stdio(false);#ifdef DEBUGcout << "DEBUG MODE" << endl;ifstream in("input.txt"); //for debugcin.rdbuf(in.rdbuf()); //for debug#endifint n, m, maxdp1, maxdp2;const int intmin = -1000000;cin >> n >> m;VI values(n);rep(i, n) cin >> values[i];if (n == m){cout << accumulate(allpt_c(values), 0) << rt;return 0;}if (m == 0){cout << 0 << rt;return 0;}VVI dp00(m + 1, VI(2, intmin)), new_dp00(m + 1, VI(2, intmin));VVI dp01(m + 2, VI(2, intmin)), new_dp01(m + 2, VI(2, intmin));dp00[0][0] = dp01[1][1] = 0;rep(i, n - 1){rep(j, m + 1) rep(k, 2){new_dp00[j][k] = intmin;}rep(j, m + 1){new_dp00[j][0] = max(dp00[j][0], dp00[j][1]);if (j < m){if (dp00[j][1] != intmin)new_dp00[j + 1][1] = max(dp00[j][0], dp00[j][1] + values[i]);new_dp00[j + 1][1] = max(new_dp00[j + 1][1], dp00[j][0]);}}rep(j, m + 1) rep(k, 2){dp00[j][k] = new_dp00[j][k];}}rep(i, n){rep(j, m + 2) rep(k, 2){new_dp01[j][k] = intmin;}rep(j, m + 2){new_dp01[j][0] = max(dp01[j][0], dp01[j][1]);if (j < m + 1){if (dp01[j][1] != intmin){new_dp01[j + 1][1] = max(dp01[j][0], dp01[j][1] + values[i]);}new_dp01[j + 1][1] = max(new_dp01[j + 1][1], dp01[j][0]);}}rep(j, m + 2) rep(k, 2){dp01[j][k] = new_dp01[j][k];}}maxdp1 = max(dp00[m][0], dp00[m][1]);maxdp2 = dp01[m + 1][1];cout << max(maxdp1, maxdp2) << rt;return 0;}