제출 #688654

#제출 시각아이디문제언어결과실행 시간메모리
688654tcmmichaelb139Knapsack (NOI18_knapsack)C++17
73 / 100
166 ms262144 KiB
#include "bits/stdc++.h" using namespace std; struct node { long long v, w, k; }; int main() { ios::sync_with_stdio(0); cin.tie(0); long long s, n; cin >> s >> n; vector<node> v(n); for (int i = 0; i < n; i++) cin >> v[i].v >> v[i].w >> v[i].k; sort(begin(v), end(v), [](node a, node b) { if (a.v == b.v) return a.w < b.w; return a.v > b.v; }); long long dp[n + 1][s + 1]; memset(dp, 0, sizeof dp); long long ans = 0; for (int i = 0; i < n; i++) { for (long long j = s; j >= 0; j--) { for (int a = 0; a <= min(v[i].k, (s - j) / v[i].w); a++) { dp[i + 1][j + v[i].w * a] = max(dp[i + 1][j + v[i].w * a], dp[i][j] + v[i].v * a); ans = max(ans, dp[i + 1][j + v[i].w * a]); } } } cout << ans << '\n'; }
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