Submission #1279307

#	Time	Username	Problem	Language	Result	Execution time	Memory
1279307		efeg	Knapsack (NOI18_knapsack)	C++20	73 / 100	1095 ms	2860 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;

#define int long long 
#define pb push_back
typedef vector<int> vi; 

int n,S; 
vi val,we,have; 

int32_t main(){
    ios_base::sync_with_stdio(NULL); cin.tie(nullptr); cout.tie(nullptr); 
    cin >> S >> n;
    for (int i = 0; i < n; i++){
        int v,w,k; cin >> v >> w >> k; 
        val.pb(v);
        we.pb(w); 
        have.pb(k); 
    }

    vi dp(S + 10,0); 
    for (int i = 0; i < n; i++){
        vi ndp(S + 10,0); 
        for (int j = 0; j <= S; j++){
            if (j != 0) ndp[j] = dp[j]; 
            if (j != 0) ndp[j] = max(ndp[j],ndp[j-1]); 

            for (int k = 1; k <= have[i]; k++){
                int w = k * we[i], v = k * val[i]; 
                if (j - w < 0) break;
                ndp[j] = max(ndp[j],dp[j - w] + v); 
            }
            //cout << i << " " << j << ": " << dp[i][j] << endl; 
        }
        dp = ndp;
    }
    cout << dp[S] << endl; 

    return 0; 
}

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 0 / 27