Submission #983326

#	Time	Username	Problem	Language	Result	Execution time	Memory
983326		fasgqwrgqwg	Knapsack (NOI18_knapsack)	C++17	0 / 100	2 ms	3420 KiB

knapsack

#include <bits/stdc++.h>

using namespace std;

// #ifndef ONLINE_JUDGE
// #include "/debug.cpp"
// #else
// #define debug(...) 0
// #endif
#define yes cout << "YES" << '\n'
#define no cout << "NO" << '\n'
#define pll pair<long long, long long>
#define pii pair<int, int>
#define newl "\n"
#define vt vector
#define ar array
#define LOOP(iter) iter.begin(), iter.end()
#define FOR(i, n) for (ll i = 0; i < n; i++)
#define FORK(i, n, k) for (ll i = k; i < n; i++)
#define ll long long
#define ld long double
#define sza(x) ((int)x.size())
#define all(a) (a).begin(), (a).end()
#define pb(x) push_back(x)
#define ff first
#define ss second
#define CEIL(a, b) ((a + b - 1) / b)
#define fileio(in, out)      \
    freopen(in, "r", stdin); \
    freopen(out, "w", stdout)

const int MAX_N = 1e5 + 5;
const ll MOD_INV = 500000004;
const ll MOD = 1e9 + 7;
const ll INF = 10e9 + 5;
const ld EPS = 1e-9;

template<class T> bool ckmax(T& a, const T& b) {
	return a < b ? a = b, 1 : 0;
}

void solve() {
    ll n, s;
    cin >> s >> n;
    vector<ll> v(n), w(n), k(n);
    for (int i = 0; i < n; i++) {
        cin >> v[i];
        cin >> w[i];
        cin >> k[i];
    }
    vector<vector<pll>> dp(n + 1, vector<pll>(s + 1, {0, 0}));
    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] >= 0) {
                if (dp[i][j].ff < dp[i - 1][j - w[i]].ff + v[i]) {
                    dp[i][j].ff = dp[i - 1][j - w[i]].ff + v[i];
                    dp[i][j].ss = 1;
                }
                // if (dp[i][j].ff < dp[i][j - w[i]].ff and dp[i][j - w[i]].ss + 1 <= k[i]) {
                //     dp[i][j].ff = dp[i][j - w[i]].ff + v[i];
                //     dp[i][j].ss++;
                // }
            }
        }
    }
    cout << dp[n][s].ff;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int tc = 1;
    // cin >> tc;
    for (int t = 1; t <= tc; t++) {
        // cout << "Case #" << t << ": ";
        solve();
    }
}

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