Submission #1138991

#	Time	Username	Problem	Language	Result	Execution time	Memory
1138991		Daniel_1997	Knapsack (NOI18_knapsack)	C++20	17 / 100	1 ms	328 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)

struct c{
    int p;
    int v;
    int k;
};

int32_t main() {

    int s,n;
    cin >> s >> n;
    vector<c>v(n);

    for(int i = 0; i < n; i++) {
        cin >> v[i].v >> v[i].p >> v[i].k;
        if(v[i].k > s)v[i].k = s;
    }

    for(int i = 0; i < v.size(); i++) {
        if(v[i].k > 1) {
            int aux = v[i].k;
            for(int j = 0; j < v[i].k; j++) {
                if(aux >= (1 << j)) {
                    v.pb({v[i].p * (1 << j),v[i].v * (1 << j),1});
                    aux -= (1 << j);
                }
            }
            v[i].k = aux;
        }
    }
    vector<int>dp(s + 1,0);

    for(int i = 0; i < v.size(); i++) {
        if(v[i].k == 0)continue;
        for(int j = s; j >= v[i].p; j--) {
            dp[j] = max(dp[j],dp[j - v[i].p] + v[i].v);
        }
    }

    int maxx = 0;

    for(int i = 0; i < dp.size(); i++) {
        maxx = max(maxx,dp[i]);
    }

    cout << maxx << endl;

    return 0;
}

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