Submission #1870734

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Source Code Expand

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstdio>
#include <functional>
#include <numeric>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <utility>
#include <sstream>
#include <complex>
#include <fstream>
#include <bitset>
#include <time.h>
#include <tuple>

using namespace std;

typedef long long ll;
typedef pair<ll, ll> P;
typedef vector<ll> V;
typedef complex<double> Point;

#define PI acos(-1.0)
#define EPS 1e-10
const ll INF = 1e12;
const ll MOD = 1e9 + 7;

#define FOR(i,a,b) for(ll i=(a);i<(b);i++)
#define rep(i,N) for(ll i=0;i<(N);i++)
#define ALL(s) (s).begin(),(s).end()
#define EQ(a,b) (abs((a)-(b))<EPS)
#define EQV(a,b) ( EQ((a).real(), (b).real()) && EQ((a).imag(), (b).imag()) )
#define fi first
#define se second
#define N_SIZE (1LL << 20)
#define NIL -1
#define MAX_N 100100

ll sq(ll num) { return num*num; }
ll mod_pow(ll x, ll n) {
	if (n == 0)return 1;
	if (n == 1)return x%MOD;
	ll res = sq(mod_pow(x, n / 2));
	res %= MOD;
	if (n % 2 == 1) {
		res *= x;
		res %= MOD;
	}
	return res;
}
ll mod_add(ll a, ll b) { return (a + b) % MOD; }
ll mod_sub(ll a, ll b) { return (a - b + MOD) % MOD; }
ll mod_mul(ll a, ll b) { return a*b % MOD; }

ll N, W;
ll w[110], v[110];
ll dp[110][110][3];

int main() {
	cin >> N >> W;
	ll buf = 0;
	rep(i, N) {
		cin >> w[i] >> v[i];
		if (i == 0)buf = w[i];
		w[i] -= buf;
	}
	rep(i, N) {
		rep(j, N) {
			rep(k, 3) {
				ll ww = buf*j + k;
				ww += buf + w[i];
				ll nj = ww / buf;
				ll nk = ww%buf;
				if (ww <= W) {
					dp[i + 1][nj][nk]
						= max(dp[i + 1][nj][nk],
							dp[i][j][k] + v[i]);
				}
				dp[i + 1][j][k] = max(dp[i + 1][j][k], dp[i][j][k]);
			}
		}
	}
	ll ans = 0;
	rep(i, N + 1) {
		rep(j, 3) {
			if (i*buf + j <= W) {
				ans = max(ans, dp[N][i][j]);
			}
		}
	}
	//rep(k, N + 1) {
	//	rep(i, 10) {
	//		rep(j, 3) {
	//			cout << dp[k][i][j] << " ";

	//		}
	//		cout << endl;
	//	}
	//	cout << endl;
	//}
	cout << ans << endl;
}

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