# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
1166871 | Aliyyiakbar | Knapsack (NOI18_knapsack) | C++20 | 0 ms | 0 KiB |
#ifndef ONLINE_JUDGE
#include "AkbarKING.h"
#else
#define debug(...)
#define debugArr(...)
#define debugG(...)
#endif
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/hash_policy.hpp>
#define int long long
#define $AzH_TxdmN$ ios_base::sync_with_stdio(0);cin.tie(nullptr);cout.tie(nullptr);
#pragma GCC target("sse,sse2,sse3,ssse3,popcnt,abm,mmx,tune=native")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("fast-math")
/*
#define NaxcivanlilaraEkranKaydiAlmayaSonOnlardaInsanKimiKocureBilerlerVeSecmedeGCD100LeyeBilerler dp[1][1];
#define Aliyyakbar dp[i][j]
#define MirrehimM dp[0][0]
#define Xanlar dp[i-1][j]
#define Elay dp[i][j-1]
#define Rufo dp[i-1][j-1]
#define Yusif dp[i+1][j]
#define Sayad dp[i][j+1]
#define Sumuraz dp[i+1][j+1]
#define Cebrayil dp[i+1][j-1]
#define Riyad dp[n][m]
#define Huseyn dp[n-1][m]
#define Zako dp[n][m-1]
#define Abdulla dp[n-1][m-1]
#define Subhan dp[n+1][m]
#define Others dp[i-1][j+1]
*/
#define ep emplace_back
#define pb push_back
#define pii pair<int,int>
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
using namespace std;
using namespace __gnu_pbds;
template <typename T>
using __indexed_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename T>
using __indexed_multiset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;
mt19937_64 rng(chrono::steady_clock().now().time_since_epoch().count());
const int sz = 3e5 + 9;
const int LOG = 63;
const int MOD = 1e9 + 7;
const int INF = 1e18;
int dp[sz], p[sz], wt[sz], cnt[sz];
int n, m;
void solve()
{
cin >> m >> n;
for (int i = 0; i < n; ++i)
{
cin >> p[i] >> wt[i] >> cnt[i];
}
int tot, prc;
for (int i = 0; i < n; ++i)
{
for (int k = 1; k <= cnt[i]; k <<= 1)
{
tot = k * wt[i];
prc = k * p[i];
for (int j = m; j >= tot; --j)
{
dp[j] = max(dp[j], dp[j - tot] + prc);
}
cnt[i] -= k;
}
if (cnt[i])
{
tot = cnt[i] * wt[i];
prc = cnt[i] * p[i];
for (int j = m; j >= tot; --j)
{
dp[j] = max(dp[j], dp[j - tot] + prc);
}
}
}
cout << dp[m] << '\n';
}
signed main()
{
$AzH_TxdmN$
int t = 1;
// cin >> t;
while (t--)
{
solve();
}
}