Submission #1172318

#TimeUsernameProblemLanguageResultExecution timeMemory
1172318bahaktlKnapsack (NOI18_knapsack)C++20
37 / 100
58 ms66136 KiB
#include <bits/stdc++.h>   
using namespace std;
#define int long long
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
const int inf=1e16;
const int N=2e5+10;
const int mod=1e9+7;

int dp[1001][2001];

signed main () {
	ios_base::sync_with_stdio(false); cin.tie(nullptr);
	int n,s;
	cin>>s>>n;
	vector<pair<int,int>>v;
	for(int i=1;i<=n;i++) {
		int c,w,k;
		cin>>c>>w>>k;
		if(i==1) k++;
		while(k--) {
			v.pb({c,w});
			//cout<<c<<' '<<w<<"\n";
		}
	}
	v.pb({0,0});
	//cout<<v[0].first<<"\n";
	for(int i=1;i<v.size();i++) {
		for(int j=0;j<=s;j++) {
			//cout<<dp[i-1][j]<<' ';
			if(v[i].second > j) dp[i][j]=dp[i-1][j];
			else dp[i][j]=max(dp[i-1][j],dp[i-1][j-v[i].second]+v[i].first);
		}
		//cout<<"\n";
	}
	int mx=-inf;
	for(int i=0;i<=s;i++) {
		mx=max(mx,dp[v.size()-1][i]);
	}
	cout<<mx;
}   
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