Submission #762002

#	Time	Username	Problem	Language	Result	Execution time	Memory
762002		DP_196	Knapsack (NOI18_knapsack)	C++14	73 / 100	1080 ms	3944 KiB

knapsack

#include <bits/stdc++.h>

using namespace std;

#define int int64_t
#define sz(x) (int)x.size()
#define MASK(i) ((1LL) << (i))
#define all(x) x.begin(), x.end()
#define BIT(x, i) ((x) >> (i) & (1LL))
#define dbg(...) cerr << "#" << __LINE__ << ":[" << #__VA_ARGS__ \
<< "] = [" ,DBG(__VA_ARGS__)

string to_string(const string& s) { return '"' + s + '"'; }
void DBG() { cerr << "]" << endl; }
template<class H, class... T> void DBG(H h, T... t) {
        cerr << to_string(h); if(sizeof...(t)) cerr << ", "; DBG(t...);
}

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

const int MAXN = 1e5 + 6;
const int INF = 1e9;
const int MOD = 1e9 + 7;

int n, s, f[2005];

struct dat {
	int v, w, k;
	
	dat (int _v = 0, int _w = 0, int _k = 0) {
		v = _v, w = _w, k = _k;
	}
} a[MAXN];


void solve() {
	cin >> s >> n;
	
	for (int i = 1; i <= n; i++) cin >> a[i].v >> a[i].w >> a[i].k;
	
	for (int i = 1; i <= n; i++) {
		int lim = min(a[i].k, s);
		for (int j = 1; j <= lim; j++) {
			for (int k = s; k >= a[i].w; --k)
				maximize(f[k], f[k - a[i].w] + a[i].v);
		}
	}
	
	cout << f[s];
}

#define TASK ""
int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    //freopen(TASK".inp", "r", stdin);
    //freopen(TASK".out", "w", stdout);

    int ntest = 1;
    //cin >> ntest;
    while (ntest--) solve();

    return 0;
}
//612

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