제출 #633169

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
633169		a_aguilo	Knapsack (NOI18_knapsack)	C++14	0 / 100	2 ms	976 KiB

knapsack

#include<bits/stdc++.h>

using namespace std;

typedef vector<long long int> vi;
typedef vector<vi> vvi;

vi dp;
vi values, weight, freqs;

int S, N;

int main(){
    cin >> S >> N;
    dp = vi(S+1, 0);
    values = vi(N);
    weight = vi(N);
    freqs = vi(N);
    for(int i = 0; i < N; ++i) cin >> values[i] >> weight[i] >> freqs[i];
    vector<int> pos;
    pos.push_back(0);
    for(int i = 0; i < N; ++i){

        for(int reps = 0; reps <= freqs[i]; ++reps){
            for(int p: pos){
                int nextW = p + weight[i];
                if(nextW <= S) {
                        dp[nextW] = max(dp[nextW], dp[p] + values[i]);
                        pos.push_back(nextW);
                }
            }
        }
    }

    long long int ans = 0;
    for(long long int n: dp) ans = max(ans, n);
    cout << ans << endl;
    return 0;
}

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