Submission #1129243

#	Time	Username	Problem	Language	Result	Execution time	Memory
1129243		newbie__1	Knapsack (NOI18_knapsack)	C++20	49 / 100	245 ms	327680 KiB

knapsack

#include<bits/stdc++.h>
#define ll long long
#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;
        if(n>1){
            vector<ll>v,w,c;
            for(ll i=0;i<n;i++){
                ll x,y,z;
                cin>>x>>y>>z;
                for(ll j=0;j<z;j++){
                    v.pb(x);
                    w.pb(y);
                }
            }
            n=v.size();
            ll dp[n+5][s+5];
            memset(dp,0,sizeof(dp));
            for(ll i=1;i<=n;i++){
                for(ll j=0;j<=s;j++){

                    dp[i][j]=dp[i-1][j];
                    if(j>=w[i-1])
                        dp[i][j]=max(dp[i][j],dp[i-1][j-w[i-1]]+v[i-1]);
                }
            }
            cout<<dp[n][s]<<"\n";;
        }else{
            ll x,y,z;
            cin>>x>>y>>z;
            ll res=0,w=0;
            for(ll i=0;i<z;i++){
                if(w+y<=s){
                    res+=x;
                    w+=y;
                }
            }
            cout<<res<<"\n";

        }



    }


    return 0;
}

/*


1
41
1




*/

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