Submission #1139424

#	Time	Username	Problem	Language	Result	Execution time	Memory
1139424		Daniel_1997	Knapsack (NOI18_knapsack)	C++20	73 / 100	1098 ms	27536 KiB

knapsack

#include<bits/stdc++.h>
#define Daniel_1997 void
using namespace std;

//\\ PRINCIPAL \\//

#define oo 1e18
#define endl "\n"
#define int long long
#define mod 800000007
#define tle while(1){;}
#define ios ios_base::sync_with_stdio(0); cin.tie(0),cout.tie(0)

//\\ BITS \\//

#define bits_1 __builtin_popcount 

//\\ STL \\//

#define pb push_back
#define fr first
#define sc second
#define lb lower_bound
#define all(x) x.begin(), x.end()

//\\ FAST OPERATIONS \\//

#define sf(n) scanf("%d", &n)
#define sff(n,m) scanf("%d%d",&n,&m)
#define sfl(n) scanf("%I64d", &n)
#define sffl(n,m) scanf("%I64d%I64d",&n,&m)

#define pf(n) printf("%d\n",n)
#define pfl(n) printf("%I64d ",n)

int32_t main() {
    ios;
    int s,n;
    cin >> s >> n;
    
    vector< pair< int, pair< int,int> > >v(n);

    for(int i = 0; i < v.size(); i++) 
    {
        cin >> v[i].fr >> v[i].sc.fr >> v[i].sc.sc;
        if(v[i].sc.sc > s)v[i].sc.sc = s;
    }

    vector< pair< int, pair< int,int> > >v2;

    for(auto i : v) 
    {
        int aux = i.sc.sc;
        for(int j = 0; j < 13; j++) 
        {
            int aux2 = (1LL << j);
            if(aux >= aux2) 
            {   
                v2.pb({i.fr * (1 << j),{i.sc.fr * (1 << j),1}});
                aux -= aux2;
            }
            
        }
        if(aux == 0)continue;
        v2.pb({i.fr * aux,{i.sc.fr * aux,1}});
    }
    
    vector<int>dp(s + 1,0);
    int maxx=0;

    for(auto i : v2)
    {
        for(int j = s; j >= i.sc.fr; j--)
        {
            dp[j] = max(dp[j],dp[j - i.sc.fr] + i.fr);
            maxx = max(maxx,dp[j]);
        }
    }



    cout << maxx << endl;
    
    return 0;
}

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