結果

問題 No.2866 yuusaan's Knapsack
ユーザー 👑 binap
提出日時 2024-08-31 13:11:17
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 3,130 bytes
コンパイル時間 3,913 ms
コンパイル使用メモリ 252,856 KB
最終ジャッジ日時 2025-02-24 03:31:41
ジャッジサーバーID
（参考情報） 		judge4 / judge1
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 * 26
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>
#include<atcoder/all>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
using namespace atcoder;
typedef long long ll;
typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<vector<int>> vvi;
typedef vector<vector<long long>> vvl;
typedef long double ld;
typedef pair<int, int> P;

ostream& operator<<(ostream& os, const modint& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const static_modint<m>& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const dynamic_modint<m>& a) {os << a.val(); return os;}
template<typename T> istream& operator>>(istream& is, vector<T>& v){int n = v.size(); assert(n > 0); rep(i, n) is >> v[i]; return is;}
template<typename U, typename T> ostream& operator<<(ostream& os, const pair<U, T>& p){os << p.first << ' ' << p.second; return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : " "); return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<vector<T>>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : ""); return os;}
template<typename T> ostream& operator<<(ostream& os, const set<T>& se){for(T x : se) os << x << " "; os << "\n"; return os;}
template<typename T> ostream& operator<<(ostream& os, const unordered_set<T>& se){for(T x : se) os << x << " "; os << "\n"; return os;}
template<typename S, auto op, auto e> ostream& operator<<(ostream& os, const atcoder::segtree<S, op, e>& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;}
template<typename S, auto op, auto e, typename F, auto mapping, auto composition, auto id> ostream& operator<<(ostream& os, const atcoder::lazy_segtree<S, op, e, F, mapping, composition, id>& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;}

template<typename T> void chmin(T& a, T b){a = min(a, b);}
template<typename T> void chmax(T& a, T b){a = max(a, b);}

const int M = 10000;
const int INF = 1001001001;
using mint = modint998244353;



int main(){
	int N, W;
	cin >> N >> W;
	vector<int> f(3 * M + 1, -INF);
	vector<mint> g(3 * M + 1);
	f[M] = 0;
	g[M] = 1;
	rep(n, N){
		int v, w;
		cin >> v >> w;
		vector<int> f_old(3 * M + 1, -INF);
		vector<mint> g_old(3 * M + 1);
		swap(f, f_old);
		swap(g, g_old);
		for(int from = 0; from <= 3 * M; from++){
			if(f[from] == f_old[from]){
				g[from] += g_old[from];
			}
			if(f[from] < f_old[from]){
				f[from] = f_old[from];
				g[from] = g_old[from];
			}
			int to = from + w;
			if(to >= 0 and to <= 3 * M){
				if(f[to] == f_old[from] + v){
					g[to] += g_old[from];
				}
				if(f[to] < f_old[from] + v){
					f[to] = f_old[from] + v;
					g[to] = g_old[from];
				}
			}
		}
	}
	int ans_f = -INF;
	mint ans_g = -INF;
	for(int w = 0; w <= M + W; w++){
		if(f[w] == ans_f){
			ans_g += g[w];
		}
		if(f[w] > ans_f){
			ans_f = f[w];
			ans_g = g[w];
		}
	}
	cout << ans_f << ' ' << ans_g << "\n";
	return 0;
}
0