제출 #1037019

#제출 시각아이디문제언어결과실행 시간메모리
1037019inkvizytorKnapsack (NOI18_knapsack)C++17
100 / 100
43 ms3932 KiB
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(0); cin.tie(0); int s, n; cin >> s >> n; vector<pair<pair<int, int>, int>> p (n); for (int i = 0; i < n; i++) { cin >> p[i].first.second >> p[i].first.first >> p[i].second; } sort(p.begin(), p.end(), greater<pair<pair<int, int>, int>>()); vector<vector<int>> u (s+1); vector<int> pos (s+1, 0); for (int i = 1; i < s+1; i++) { u[i].resize(s/i, -1); } for (auto x : p) { for (int i = 0; i < x.second; i++) { if (pos[x.first.first] >= s/x.first.first) { break; } u[x.first.first][pos[x.first.first]] = x.first.second; pos[x.first.first]++; } } vector<int> dp (s+1, -1); dp[0] = 0; for (int i = 1; i <= s; i++) { for (auto x : u[i]) { if (x == -1) { break; } for (int j = s-i; j >= 0; j--) { dp[j+i] = max(dp[j+i], dp[j]+x); } } } int maks = 0; for (int i : dp) { maks = max(i, maks); } cout << maks << '\n'; }
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