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답안 #242823

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
242823 2020-06-29T10:53:37 Z moonrabbit2 Feast (NOI19_feast) C++17
100 / 100
 417 ms 232220 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
using namespace std;
typedef long long ll;
typedef long double db;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<db,db> pdb;
typedef tuple<int,int,int> tii;
typedef tuple<ll,ll,ll> tll;
typedef tuple<int,int,int,int> ti4;
typedef vector<vector<ll>> mat;
const ll mod=1e9+7,inf=1e18;
const int N=3e5+5,M=2e5+5,K=1e7+5;
int n,k;
ll a[N],ans;
struct SEG{
	struct node{
		tll Lmx,Rmx,Sum,Mx;
		tll Lmx2,Rmx2,Sum2,Mx2;
		void Swap(){
			swap(Lmx,Lmx2); swap(Rmx,Rmx2); swap(Sum,Sum2); swap(Mx,Mx2);
		}
		node operator +(node n1){
			node n;
			n.Lmx=max(Lmx,{get<0>(Sum)+get<0>(n1.Lmx),get<1>(Sum),get<2>(n1.Lmx)});
			n.Rmx=max(n1.Rmx,{get<0>(Rmx)+get<0>(n1.Sum),get<1>(Rmx),get<2>(n1.Sum)});
			n.Sum={get<0>(Sum)+get<0>(n1.Sum),get<1>(Sum),get<2>(n1.Sum)};
			n.Mx=max({Mx,n1.Mx,{get<0>(Rmx)+get<0>(n1.Lmx),get<1>(Rmx),get<2>(n1.Lmx)}});
			n.Lmx2=max(Lmx2,{get<0>(Sum2)+get<0>(n1.Lmx2),get<1>(Sum2),get<2>(n1.Lmx2)});
			n.Rmx2=max(n1.Rmx2,{get<0>(Rmx2)+get<0>(n1.Sum2),get<1>(Rmx2),get<2>(n1.Sum2)});
			n.Sum2={get<0>(Sum2)+get<0>(n1.Sum2),get<1>(Sum2),get<2>(n1.Sum2)};
			n.Mx2=max({Mx2,n1.Mx2,{get<0>(Rmx2)+get<0>(n1.Lmx2),get<1>(Rmx2),get<2>(n1.Lmx2)}});
			return n;
		}
	}tree[4*N]; bool lazy[4*N];
	void pd(int nd,int l,int r){
		if(lazy[nd]) tree[nd].Swap();
		if(l!=r){
			lazy[nd<<1]^=lazy[nd];
			lazy[nd<<1|1]^=lazy[nd];
		}
		lazy[nd]=0;
	}
	void init(int nd,int l,int r){
		if(l==r){
			tll t1={a[l],l,l},t2={-a[l],l,l};
			tree[nd]={t1,t1,t1,t1,t2,t2,t2,t2};
			return;
		}
		int m=(l+r)>>1;
		init(nd<<1,l,m); init(nd<<1|1,m+1,r);
		tree[nd]=tree[nd<<1]+tree[nd<<1|1];
	}
	void upd(int nd,int l,int r,int s,int e){
		pd(nd,l,r);
		if(r<s||e<l) return;
		if(s<=l&&r<=e){
			lazy[nd]=1; pd(nd,l,r); return;
		}
		int m=(l+r)>>1;
		upd(nd<<1,l,m,s,e); upd(nd<<1|1,m+1,r,s,e);
		tree[nd]=tree[nd<<1]+tree[nd<<1|1];
	}
}Solver;
int main(){
	ios::sync_with_stdio(false); cin.tie(0);
	cin>>n>>k;
	for(int i=1;i<=n;i++) cin>>a[i];
	Solver.init(1,1,n);
	for(int i=1;i<=k;i++){
		if(get<0>(Solver.tree[1].Mx)<=0) break;
		ans+=get<0>(Solver.tree[1].Mx);
		Solver.upd(1,1,n,get<1>(Solver.tree[1].Mx),get<2>(Solver.tree[1].Mx));
	}
	cout<<ans;
	return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 187 ms 228064 KB Output is correct
2 Correct 183 ms 228052 KB Output is correct
3 Correct 175 ms 228060 KB Output is correct
4 Correct 176 ms 228176 KB Output is correct
5 Correct 179 ms 228092 KB Output is correct
6 Correct 175 ms 228088 KB Output is correct
7 Correct 176 ms 228088 KB Output is correct
8 Correct 202 ms 228100 KB Output is correct
9 Correct 183 ms 228072 KB Output is correct
10 Correct 186 ms 228160 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 162 ms 228164 KB Output is correct
2 Correct 160 ms 228216 KB Output is correct
3 Correct 157 ms 228088 KB Output is correct
4 Correct 175 ms 228088 KB Output is correct
5 Correct 181 ms 228004 KB Output is correct
6 Correct 157 ms 228088 KB Output is correct
7 Correct 155 ms 228092 KB Output is correct
8 Correct 172 ms 228088 KB Output is correct
9 Correct 191 ms 228040 KB Output is correct
10 Correct 167 ms 228112 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 184 ms 228192 KB Output is correct
2 Correct 183 ms 228216 KB Output is correct
3 Correct 180 ms 228088 KB Output is correct
4 Correct 182 ms 228088 KB Output is correct
5 Correct 187 ms 228196 KB Output is correct
6 Correct 179 ms 228216 KB Output is correct
7 Correct 177 ms 228088 KB Output is correct
8 Correct 183 ms 228088 KB Output is correct
9 Correct 183 ms 228172 KB Output is correct
10 Correct 195 ms 228252 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 113 ms 225760 KB Output is correct
2 Correct 116 ms 225784 KB Output is correct
3 Correct 119 ms 225784 KB Output is correct
4 Correct 116 ms 225784 KB Output is correct
5 Correct 122 ms 225708 KB Output is correct
6 Correct 120 ms 225784 KB Output is correct
7 Correct 121 ms 225760 KB Output is correct
8 Correct 120 ms 225784 KB Output is correct
9 Correct 122 ms 225824 KB Output is correct
10 Correct 129 ms 225784 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 113 ms 225760 KB Output is correct
2 Correct 116 ms 225784 KB Output is correct
3 Correct 119 ms 225784 KB Output is correct
4 Correct 116 ms 225784 KB Output is correct
5 Correct 122 ms 225708 KB Output is correct
6 Correct 120 ms 225784 KB Output is correct
7 Correct 121 ms 225760 KB Output is correct
8 Correct 120 ms 225784 KB Output is correct
9 Correct 122 ms 225824 KB Output is correct
10 Correct 129 ms 225784 KB Output is correct
11 Correct 118 ms 225760 KB Output is correct
12 Correct 117 ms 225784 KB Output is correct
13 Correct 125 ms 225744 KB Output is correct
14 Correct 122 ms 225808 KB Output is correct
15 Correct 138 ms 225784 KB Output is correct
16 Correct 119 ms 225820 KB Output is correct
17 Correct 125 ms 225764 KB Output is correct
18 Correct 115 ms 225784 KB Output is correct
19 Correct 117 ms 225784 KB Output is correct
20 Correct 117 ms 225784 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 113 ms 225760 KB Output is correct
2 Correct 116 ms 225784 KB Output is correct
3 Correct 119 ms 225784 KB Output is correct
4 Correct 116 ms 225784 KB Output is correct
5 Correct 122 ms 225708 KB Output is correct
6 Correct 120 ms 225784 KB Output is correct
7 Correct 121 ms 225760 KB Output is correct
8 Correct 120 ms 225784 KB Output is correct
9 Correct 122 ms 225824 KB Output is correct
10 Correct 129 ms 225784 KB Output is correct
11 Correct 118 ms 225760 KB Output is correct
12 Correct 117 ms 225784 KB Output is correct
13 Correct 125 ms 225744 KB Output is correct
14 Correct 122 ms 225808 KB Output is correct
15 Correct 138 ms 225784 KB Output is correct
16 Correct 119 ms 225820 KB Output is correct
17 Correct 125 ms 225764 KB Output is correct
18 Correct 115 ms 225784 KB Output is correct
19 Correct 117 ms 225784 KB Output is correct
20 Correct 117 ms 225784 KB Output is correct
21 Correct 121 ms 225760 KB Output is correct
22 Correct 131 ms 225784 KB Output is correct
23 Correct 123 ms 225784 KB Output is correct
24 Correct 124 ms 225928 KB Output is correct
25 Correct 126 ms 225784 KB Output is correct
26 Correct 121 ms 225772 KB Output is correct
27 Correct 129 ms 225772 KB Output is correct
28 Correct 132 ms 225784 KB Output is correct
29 Correct 169 ms 225840 KB Output is correct
30 Correct 179 ms 225760 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 187 ms 228064 KB Output is correct
2 Correct 183 ms 228052 KB Output is correct
3 Correct 175 ms 228060 KB Output is correct
4 Correct 176 ms 228176 KB Output is correct
5 Correct 179 ms 228092 KB Output is correct
6 Correct 175 ms 228088 KB Output is correct
7 Correct 176 ms 228088 KB Output is correct
8 Correct 202 ms 228100 KB Output is correct
9 Correct 183 ms 228072 KB Output is correct
10 Correct 186 ms 228160 KB Output is correct
11 Correct 162 ms 228164 KB Output is correct
12 Correct 160 ms 228216 KB Output is correct
13 Correct 157 ms 228088 KB Output is correct
14 Correct 175 ms 228088 KB Output is correct
15 Correct 181 ms 228004 KB Output is correct
16 Correct 157 ms 228088 KB Output is correct
17 Correct 155 ms 228092 KB Output is correct
18 Correct 172 ms 228088 KB Output is correct
19 Correct 191 ms 228040 KB Output is correct
20 Correct 167 ms 228112 KB Output is correct
21 Correct 184 ms 228192 KB Output is correct
22 Correct 183 ms 228216 KB Output is correct
23 Correct 180 ms 228088 KB Output is correct
24 Correct 182 ms 228088 KB Output is correct
25 Correct 187 ms 228196 KB Output is correct
26 Correct 179 ms 228216 KB Output is correct
27 Correct 177 ms 228088 KB Output is correct
28 Correct 183 ms 228088 KB Output is correct
29 Correct 183 ms 228172 KB Output is correct
30 Correct 195 ms 228252 KB Output is correct
31 Correct 113 ms 225760 KB Output is correct
32 Correct 116 ms 225784 KB Output is correct
33 Correct 119 ms 225784 KB Output is correct
34 Correct 116 ms 225784 KB Output is correct
35 Correct 122 ms 225708 KB Output is correct
36 Correct 120 ms 225784 KB Output is correct
37 Correct 121 ms 225760 KB Output is correct
38 Correct 120 ms 225784 KB Output is correct
39 Correct 122 ms 225824 KB Output is correct
40 Correct 129 ms 225784 KB Output is correct
41 Correct 118 ms 225760 KB Output is correct
42 Correct 117 ms 225784 KB Output is correct
43 Correct 125 ms 225744 KB Output is correct
44 Correct 122 ms 225808 KB Output is correct
45 Correct 138 ms 225784 KB Output is correct
46 Correct 119 ms 225820 KB Output is correct
47 Correct 125 ms 225764 KB Output is correct
48 Correct 115 ms 225784 KB Output is correct
49 Correct 117 ms 225784 KB Output is correct
50 Correct 117 ms 225784 KB Output is correct
51 Correct 121 ms 225760 KB Output is correct
52 Correct 131 ms 225784 KB Output is correct
53 Correct 123 ms 225784 KB Output is correct
54 Correct 124 ms 225928 KB Output is correct
55 Correct 126 ms 225784 KB Output is correct
56 Correct 121 ms 225772 KB Output is correct
57 Correct 129 ms 225772 KB Output is correct
58 Correct 132 ms 225784 KB Output is correct
59 Correct 169 ms 225840 KB Output is correct
60 Correct 179 ms 225760 KB Output is correct
61 Correct 354 ms 229440 KB Output is correct
62 Correct 417 ms 232180 KB Output is correct
63 Correct 214 ms 232020 KB Output is correct
64 Correct 357 ms 232160 KB Output is correct
65 Correct 292 ms 232160 KB Output is correct
66 Correct 319 ms 232220 KB Output is correct
67 Correct 261 ms 232056 KB Output is correct
68 Correct 195 ms 232056 KB Output is correct
69 Correct 207 ms 231840 KB Output is correct
70 Correct 184 ms 231160 KB Output is correct