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#include <bits/stdc++.h> #define all(vec) vec.begin(),vec.end() #define CLR(i,a) memset(i,a,sizeof(i)) #define fi first #define se second #define pb push_back #define SZ(a) ((int) a.size()) #define FOR(i, a, b) for (int i = (a); i <= (b); ++i) #define ROF(i, a, b) for (int i = (a); i >= (b); --i) #define getFro(vec) (vec.empty()?0:vec.front()) #define getBac(vec) (vec.empty()?0:vec.front()) #define debug(var) cerr << #var <<":"<<var<<"\n"; #define DEBUG(variable) \ do { \ std::cerr << #variable << ":"; \ for (const auto& elem : variable) { \ std::cerr << elem << " "; \ } \ std::cerr << "\n"; \ } while (0) #define uniVec(var) \ do { \ sort(var.begin(),var.end());\ var.resize(unique(var.begin(),var.end())-var.begin());\ } while (0) #define debugN(var,N) \ do{ \ std::cerr<<#var<<":"; \ FOR(i,1,N){ \ std::cerr<<var[i]<<" "; \ } \ std::cerr<<"\n"; \ }while(0) #define debugMap(variable) \ do { \ std::cerr << #variable << ":\n"; \ for (const auto& pair : variable) { \ std::cerr << " " << pair.first << " => " << pair.second << "\n"; \ } \ std::cerr << std::endl; \ } while (0) #define lson(var) (var<<1) #define rson(var) ((var<<1)+1)
using namespace std;
typedef long long ll; typedef unsigned long long ull; typedef __int128 i128; typedef pair<ll,ll> pll; typedef array<ll,3> arr; typedef double DB; typedef pair<DB,DB> pdd; typedef pair<ll,bool> plb; constexpr ll MAXN=static_cast<ll>(1e6)+10,INF=static_cast<ll>(1e18)+3; constexpr ll mod=static_cast<ll>(1e9)+7; constexpr double eps=1e-8;
ll N,M,K,T,D[MAXN]; bool spec[MAXN]; /* K其实就是吃掉一个寿司所需要花费的时间。 你可以不停拿,但是最后要吃完,拿的时候不能吃。
*/ inline void solve(){ cin>>N>>K; FOR(i,0,N+5){ D[i]=0; spec[i]=false; } FOR(i,1,N){ cin>>D[i]; } ll idx=0; ROF(i,N,1){ ++idx; if(idx%(K+1)==0){ spec[i]=true; } } priority_queue<ll> pq; ll ans=0; FOR(i,1,N){ pq.push(D[i]); if(spec[i]){ ans+=pq.top(); pq.pop(); } } #ifdef LOCAL debugN(spec,N); #endif cout<<ans<<"\n"; }
int main() { ios::sync_with_stdio(false); cin.tie(0);cout.tie(0); cin>>T; while(T--){ solve(); } // solve(); return 0; } /* AC https://codeforces.com/contest/2085/submission/319924135 */
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