Submission #1287854

#	Time	Username	Problem	Language	Result	Execution time	Memory
1287854		huseyncafarli	Knapsack (NOI18_knapsack)	C++20	37 / 100	2 ms	580 KiB

knapsack

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define nline '\n'
#define lsb(x) ((x) & -(x))
// #define int ll
#define fastio ios_base::sync_with_stdio(0); cin.tie(0)
using namespace std;

const int sz = (int)1e5 + 5;
const int inf = 2e9 + 5;
const int mod1 = 1e9 + 7;
const int mod2 = 998244353;

int powmod(int n, int m, int mod) {
    int res = 1;
    while (m) {
        if (m & 1) res = 1ll * res * n % mod;
        n = 1ll * n * n % mod;
        m >>= 1;
    }
    return res;
}

struct Items {
    int v, w;
};

void solve() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int s, n;
    cin >> s >> n;
    vector<Items> vv;
    for (int i = 0; i < n; i++) {
        int v, w, k;
        cin >> v >> w >> k;
        int p = 1;
        while (k > 0) {
            int take = min(p, k);
            vv.push_back({v*take, w*take});
            k -= take;
            p <<= 1;
        }
    }
    vector<int> dp(s + 1, 0);
    for (auto &it: vv) {
        for (int j = s; j >= it.w; j--) {
            dp[j] = max(dp[j], dp[j - it.w] + it.v);
        }
    }
    cout << dp[s] << nline;
}

int main() {
    fastio;
    int t = 1;
    // cin >> t;
    while (t--) {
        solve();
    }
}

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