제출 #1188110

#제출 시각아이디문제언어결과실행 시간메모리
1188110abcd1234Knapsack (NOI18_knapsack)C++20
29 / 100
2 ms328 KiB
#include <iostream>
#include <vector>

using namespace std;

int main()
{
    int s, n; cin >> s >> n;
    vector<vector<long long>> store(n, vector<long long>(3));
    for(int i = 0; i < n; i++)
    {
        cin >> store[i][0] >> store[i][1];
        long long temp; cin >> temp;
        store[i][2] = min(s / store[i][1], temp);
    }
    vector<long long> dp(s + 1, 0);
    for(int i = 0; i < n; i++)
    {
        for(int j = s; j >= store[i][1]; j--) dp[j] = max(dp[j - store[i][1]] + store[i][0], dp[j]);
        store[i][2]--;
    }
    for(int i = 0; i < n; i++)
    {
        while(store[i][2] > 0)
        {
            if(dp[s - store[i][1]] + store[i][0] > dp[s])
            {
                for(int j = s; j >= store[i][1]; j--) dp[j] = max(dp[j - store[i][1]] + store[i][0], dp[j]);
                store[i][2]--;
            }
            else store[i][2] = -1;
        }
    }
    cout << dp[s] << endl;
}
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