제출 #985828

#제출 시각아이디문제언어결과실행 시간메모리
985828vjudge1Knapsack (NOI18_knapsack)C++17
29 / 100
3 ms472 KiB
#include <bits/stdc++.h> using i64 = long long; int main() { std::ios::sync_with_stdio(false); std::cin.tie(nullptr); int S, N; std::cin >> S >> N; std::map<int, std::vector<std::pair<int, int>>> item; for (int i = 0; i < N; i++) { int v, w, k; std::cin >> v >> w >> k; item[w].push_back({v, k}); } std::vector<i64> dp(1 + S); for (auto &[w, vec] : item) { std::sort(vec.begin(), vec.end(), std::greater<std::pair<int, int>>()); for (int j = S; j >= 0; j--) { i64 val = 0; for (int c = 0, i1 = 0, i2 = 0; c * w <= S; c++) { if (j - c * w >= 0) { dp[j] = std::max(dp[j], dp[j - c * w] + val); } if (i2 == vec[0].second) { i1++, i2 = 0; } if (i1 == (int)vec.size()) { break; } val += vec[i1].first, i2++; } } } std::cout << dp[S] << "\n"; return 0; }
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