Submission #890694

#	Time	Username	Problem	Language	Result	Execution time	Memory
890694		nikhilg2121	Knapsack (NOI18_knapsack)	C++17	73 / 100	1093 ms	2912 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
#define ll long long
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pii> vii;
typedef vector<vi> vvi;
typedef vector<pll> vll;
typedef vector<vl> vvl;

#define fori(i, n) for (int i = 0; i < n; i++)
#define ford(i, n) for (int i = n - 1; i >= 0; i--)
#define rep(i, a, b) for (int i = a; i <= b; i++)
#define repd(i, a, b) for (int i = a; i >= b; i--)
#define trav(x, a) for (auto &x : a)
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define eb emplace_back
#define endl '\n'
#define sz(a) (int)(a).size()
#define fi first
#define se second
#define mp make_pair


void solve(){
     int s,n;
     cin>>s>>n;
     vi v(n);
     vi w(n);
     vi k(n);
        fori(i,n){
            cin>>v[i]>>w[i]>>k[i];
        }
        vvi dp(2,vi(s+1,0));

       
        int l=1;
        rep(i,1,n){
            l=!l;
            rep(j,1,s){
                int t=0;
                dp[!l][j] = dp[l][j];
                while(t<=k[i-1] && j-t*w[i-1]>=0){
                    dp[!l][j] = max( dp[!l][j], dp[l][j-t*w[i-1]] + t*v[i-1]);
                    t++;
                }
            }
        }
        int ans=0;
        fori(i,s+1){
            ans = max(ans,dp[n%2][i]);
        }
        // fori(i,n+1){
        //     fori(j,s+1){
        //         cout<<dp[i][j]<<" ";
        //     }
        //     cout<<endl;
        // }
        cout<<ans<<endl;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int t=1;
    // cin >> t;
    while (t--)
    {
        solve();
    }
}

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