| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1330972 | silver_bullet | Knapsack (NOI18_knapsack) | C++17 | 38 ms | 880 KiB |
#include<bits/stdc++.h>
using namespace std;
const int maxW = (int)2e3 + 2;
priority_queue<int,vector<int>,greater<int>> pq[maxW];
long long dp[maxW];
int main()
{
ios_base::sync_with_stdio(0);cin.tie(0);
int W,n;
cin >> W >> n;
for(int i=1;i<=n;++i)
{
int v,w,k;
cin >> v >> w >> k;
while(pq[w].size() < W / w && k > 0)
{
--k;
pq[w].push(v);
}
if(pq[w].size() == W / w )
{
while(k && pq[w].top() < v)
{
--k;
pq[w].pop();
pq[w].push(v);
}
}
}
vector<array<int,2>> a;
a.clear();
for(int w=1;w<=W;++w)
{
while(pq[w].size())
{
a.push_back({w,pq[w].top()});
pq[w].pop();
}
}
for(auto x : a)
{
for(int i=W;i>=x[0];--i)
dp[i] = max(dp[i],dp[i-x[0]] + x[1]);
}
cout << dp[W];
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