結果

問題 No.951 【本日限定】1枚頼むともう1枚無料!
ユーザー hitonanodehitonanode
提出日時 2019-12-14 00:13:27
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 160 ms / 2,000 ms
コード長 4,239 bytes
コンパイル時間 2,042 ms
コンパイル使用メモリ 184,420 KB
実行使用メモリ 5,376 KB
最終ジャッジ日時 2024-06-27 23:07:50
合計ジャッジ時間 7,437 ms
ジャッジサーバーID
(参考情報)
judge1 / judge2
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
5,248 KB
testcase_01 AC 2 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 2 ms
5,376 KB
testcase_04 AC 2 ms
5,376 KB
testcase_05 AC 2 ms
5,376 KB
testcase_06 AC 2 ms
5,376 KB
testcase_07 AC 2 ms
5,376 KB
testcase_08 AC 2 ms
5,376 KB
testcase_09 AC 5 ms
5,376 KB
testcase_10 AC 5 ms
5,376 KB
testcase_11 AC 4 ms
5,376 KB
testcase_12 AC 33 ms
5,376 KB
testcase_13 AC 110 ms
5,376 KB
testcase_14 AC 20 ms
5,376 KB
testcase_15 AC 19 ms
5,376 KB
testcase_16 AC 28 ms
5,376 KB
testcase_17 AC 28 ms
5,376 KB
testcase_18 AC 2 ms
5,376 KB
testcase_19 AC 2 ms
5,376 KB
testcase_20 AC 2 ms
5,376 KB
testcase_21 AC 4 ms
5,376 KB
testcase_22 AC 2 ms
5,376 KB
testcase_23 AC 3 ms
5,376 KB
testcase_24 AC 148 ms
5,376 KB
testcase_25 AC 156 ms
5,376 KB
testcase_26 AC 142 ms
5,376 KB
testcase_27 AC 142 ms
5,376 KB
testcase_28 AC 157 ms
5,376 KB
testcase_29 AC 157 ms
5,376 KB
testcase_30 AC 2 ms
5,376 KB
testcase_31 AC 2 ms
5,376 KB
testcase_32 AC 2 ms
5,376 KB
testcase_33 AC 4 ms
5,376 KB
testcase_34 AC 5 ms
5,376 KB
testcase_35 AC 151 ms
5,376 KB
testcase_36 AC 149 ms
5,376 KB
testcase_37 AC 156 ms
5,376 KB
testcase_38 AC 158 ms
5,376 KB
testcase_39 AC 158 ms
5,376 KB
testcase_40 AC 138 ms
5,376 KB
testcase_41 AC 139 ms
5,376 KB
testcase_42 AC 140 ms
5,376 KB
testcase_43 AC 142 ms
5,376 KB
testcase_44 AC 141 ms
5,376 KB
testcase_45 AC 142 ms
5,376 KB
testcase_46 AC 156 ms
5,376 KB
testcase_47 AC 160 ms
5,376 KB
testcase_48 AC 159 ms
5,376 KB
testcase_49 AC 156 ms
5,376 KB
testcase_50 AC 154 ms
5,376 KB
testcase_51 AC 159 ms
5,376 KB
testcase_52 AC 98 ms
5,376 KB
testcase_53 AC 119 ms
5,376 KB
testcase_54 AC 73 ms
5,376 KB
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 #

#include <bits/stdc++.h>
using namespace std;
using lint = long long int;
using pint = pair<int, int>;
using plint = pair<lint, lint>;
struct fast_ios { fast_ios(){ cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_;
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) ((lint)(x).size())
#define POW2(n) (1LL << (n))
#define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++)
#define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--)
#define REP(i, n) FOR(i,0,n)
#define IREP(i, n) IFOR(i,0,n)
template<typename T> void ndarray(vector<T> &vec, int len) { vec.resize(len); }
template<typename T, typename... Args> void ndarray(vector<T> &vec, int len, Args... args) { vec.resize(len); for (auto &v : vec) ndarray(v, args...); }
template<typename T> bool mmax(T &m, const T q) { if (m < q) {m = q; return true;} else return false; }
template<typename T> bool mmin(T &m, const T q) { if (m > q) {m = q; return true;} else return false; }
template<typename T1, typename T2> pair<T1, T2> operator+(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first + r.first, l.second + r.second); }
template<typename T1, typename T2> pair<T1, T2> operator-(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first - r.first, l.second - r.second); }
template<typename T> istream &operator>>(istream &is, vector<T> &vec){ for (auto &v : vec) is >> v; return is; }
///// This part below is only for debug, not used /////
template<typename T> ostream &operator<<(ostream &os, const vector<T> &vec){ os << "["; for (auto v : vec) os << v << ","; os << "]"; return os; }
template<typename T> ostream &operator<<(ostream &os, const deque<T> &vec){ os << "deq["; for (auto v : vec) os << v << ","; os << "]"; return os; }
template<typename T> ostream &operator<<(ostream &os, const set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> ostream &operator<<(ostream &os, const unordered_set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> ostream &operator<<(ostream &os, const multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> ostream &operator<<(ostream &os, const unordered_multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa){ os << "(" << pa.first << "," << pa.second << ")"; return os; }
template<typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; }
template<typename TK, typename TV> ostream &operator<<(ostream &os, const unordered_map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; }
#define dbg(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ") " << __FILE__ << endl;
///// END /////
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/tag_and_trait.hpp>
using namespace __gnu_pbds; // find_by_order(), order_of_key()
template<typename TK> using pbds_set = tree<TK, null_type, less<TK>, rb_tree_tag, tree_order_statistics_node_update>;
template<typename TK, typename TV> using pbds_map = tree<TK, TV, less<TK>, rb_tree_tag, tree_order_statistics_node_update>;
*/

int main()
{
    int N, K;
    cin >> N >> K;
    vector<pint> PD(N);
    REP(i, N) cin >> PD[i].first >> PD[i].second;
    sort(PD.rbegin(), PD.rend());

    vector<vector<int>> dp;
    ndarray(dp, 2, K + 1);
    REP(j, K + 1) REP(k, 2) dp[k][j] = -1e9;
    dp[0][K] = 0;

    for (auto p : PD)
    {
        vector<vector<int>> dpnew = dp;
        REP(d, 2) REP(j, K + 1)
        {
            if (dp[d][j] >= 0)
            {
                if (j - p.first >= 0) mmax(dpnew[1][j - p.first], dp[d][j] + p.second);
            }
        }
        REP(j, K + 1) if (dp[1][j] >= 0) mmax(dpnew[0][j], dp[1][j] + p.second);
        dp = dpnew;
    }
    int ret = 0;
    REP(k, 2) REP(j, K + 1) mmax(ret, dp[k][j]);
    cout << ret << endl;
}
0