Submission #1129253

#	Time	Username	Problem	Language	Result	Execution time	Memory
1129253		newbie__1	Knapsack (NOI18_knapsack)	C++20	12 / 100	219 ms	327680 KiB

knapsack

#include<bits/stdc++.h>
#define ll int
#define F first
#define S second
#define pb push_back
#define mpr make_pair

const ll N=2e5 + 10 , mod=1e9 + 7;
const double eps=1e-6;
using namespace std;

ll n,m,a,b,c,s,q,x,k;
ll t[N];
string ch;
vector<vector<ll>>v;
ll res=0;



int main(){
    ios_base::sync_with_stdio (0); cin.tie(0),cout.tie(0);
//    freopen("time.in","r",stdin);
//    freopen("time.out","w",stdout);



    ll T=1;
    //cin>>T;
    while(T--){
        cin>>s>>n;
        ll v[n+5],w[n+5],c[n+5];
        vector<ll>t;
        for(ll i=0;i<n;i++){
            cin>>v[i]>>w[i]>>c[i];
        }
        ll dp[n*s+5][s+2];
        memset(dp,0,sizeof(dp));
        dp[0][0]=0;
        ll res=0;
        ll x=1;
        for(ll i=1;i<=n;i++){
            for(ll j=0;j<min(s,c[i-1]);j++){
                for(ll k=0;k<=s;k++){
                    dp[x][k]=dp[x-1][k];
                    if(k>=w[i-1]){
                        dp[x][k]=max(dp[x][k],dp[x-1][k-w[i-1]]+v[i-1]);
                    }
                }
                x++;

                //cout<<i<<" "<<j<<" "<<dp[i+j][k]<<" \n";

                res=max(res,dp[x-1][s]);
            }
        }
        cout<<res<<"\n";




    }


    return 0;
}

/*


20 3
5000 15 1
100 1 3
50 2 4


*/

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