Submission #1018248

#	Time	Username	Problem	Language	Result	Execution time	Memory
1018248		arkash707	Knapsack (NOI18_knapsack)	C++17	37 / 100	1039 ms	31896 KiB

knapsack

#include<iostream>
#include<string>
#include<algorithm>
#include<unordered_set>
#include<unordered_map>
#include<vector>
#define ll long long
using namespace std;
int mod = 1000000007;


int s, n;
vector<ll> c(2001, 0);
vector<ll> w(2001, 0);
vector<ll> q(2001, 0);
vector<vector<ll>> dp(2001, vector<ll>(2001, -1));

long long solve() {

    ll ans = 0;
    dp[0][0] = 0;

    for (int i=1; i<=n; i++) {
        for (int j=0; j<=s; j++) {
            
            //buy from 0 to q[i] of good i
            for (int k=0; k<=q[i]; k++) {
                if (j-k*w[i] < 0 || dp[i-1][j-k*w[i]] == -1) continue;
                dp[i][j] = max(dp[i][j], dp[i-1][j-k*w[i]] + c[i] * k);
            }
            ans = max(ans, dp[i][j]);
        }
    }

    return ans;

    




}


int main() {

    cin >> s >> n;
    for (int i=1; i<=n; i++) cin >> c[i] >> w[i] >> q[i];
    cout << solve() << "\n";
}

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