Submission #985875

#	Time	Username	Problem	Language	Result	Execution time	Memory
985875		vjudge1	Knapsack (NOI18_knapsack)	C++17	Compilation error	0 ms	0 KiB

knapsack

#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;
            int cap = 0;
            for (auto [v, k] : vec) {
                for (int i = 0; i < k; i++) {
                    val += v, cap += w;
                    if (cap > S) {
                        goto outer;
                    }
                    if (j + cap <= S) {
                        dp[j + cap] = std::max(dp[j + cap], dp[j] + val);
                    }
                }
            }
            outer:
        }
    }

    std::cout << dp[S] << "\n";

    return 0;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:38:9: error: expected primary-expression before '}' token
   38 |         }
      |         ^