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Submission #970226

# Submission time Handle Problem Language Result Execution time Memory
970226 2024-04-26T08:40:28 Z amirhoseinfar1385 The short shank; Redemption (BOI21_prison) C++17
80 / 100
 2000 ms 361924 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
using namespace std;
const int maxn=2000000+10;
int n,k,t,inf=1e9+5;
int all[maxn],te=0,res=0,vas[maxn],kaf=(1<<21);
pair<int,int>allq[maxn];

struct segment{
	struct node{
		int lazy;
		pair<int,int>mx;
		node(){
			lazy=0;
			mx=make_pair(0,0);
		}
	};
	node seg[(1<<22)];
	segment(){
		for(int i=(1<<22)-1;i>=1;i--){
			if(i>=kaf){
				seg[i].mx.second=i-kaf;
			}else{
				seg[i].mx.second=seg[(i<<1)].mx.second;
			}
		}
	}
	void calc(int i){
		if(i>=kaf){
			seg[i].mx.first+=seg[i].lazy;
			seg[i].lazy=0;
			return ;
		}
		seg[i].mx=max(make_pair(seg[(i<<1)].lazy+seg[(i<<1)].mx.first,seg[(i<<1)].mx.second),make_pair(seg[(i<<1)^1].lazy+seg[(i<<1)^1].mx.first,seg[(i<<1)^1].mx.second));
	}
	void shift(int i){
		if(i>=kaf){
			return ;
		}
		seg[(i<<1)].lazy+=seg[i].lazy;
		seg[(i<<1)^1].lazy+=seg[i].lazy;
		seg[i].lazy=0;
		return ;
	}
	void upd(int i,int l,int r,int tl,int tr,int w){
		if(l>r||l>tr||r<tl||tl>tr){
			return ;
		}
		if(l>=tl&&r<=tr){
			seg[i].lazy+=w;
			shift(i);
			calc(i);
			return ;
		}
		shift(i);
		int m=(l+r)>>1;
		upd((i<<1),l,m,tl,tr,w);
		upd((i<<1)^1,m+1,r,tl,tr,w);
		calc(i);
	}
	pair<int,int> pors(int i,int l,int r,int tl,int tr){
		if(l>r||l>tr||r<tl||tl>tr){
			return make_pair(0,-1);
		}
		shift(i);
		calc(i);
		if(l>=tl&&r<=tr){
			return seg[i].mx;
		}
		int m=(l+r)>>1;
		return max(pors((i<<1),l,m,tl,tr),pors((i<<1)^1,m+1,r,tl,tr));
	}
}segmx;

void remove(int ind){
	if(vas[ind]==1){
		return ;
	}
	vas[ind]=1;
	segmx.upd(1,0,kaf-1,allq[ind].first,allq[ind].second,-1);
}

struct segmentv{
	vector<int>seg[(1<<22)];
	void upd(int i,int l,int r,int tl,int tr,int w){
		if(l>r||l>tr||r<tl||tl>tr){
			return ;
		}
		if(l>=tl&&r<=tr){
			seg[i].push_back(w);
			return ;
		}
		int m=(l+r)>>1;
		upd((i<<1),l,m,tl,tr,w);
		upd((i<<1)^1,m+1,r,tl,tr,w);
		return ;
	}
	void del(int i){
		i+=kaf;
		while(i>0){
			for(auto x:seg[i]){
				remove(x);
			}
			seg[i].clear();
			i>>=1;
		}
	}
}segv;

void vorod(){
	cin>>n>>k>>t;
	for(int i=1;i<=n;i++){
		cin>>all[i];
	}
}

void calbaz(){
	all[0]=inf;
	vector<int>v;
	v.push_back(0);
	for(int i=1;i<=n;i++){
		while((int)v.size()>0&&all[v.back()]+(i-v.back())>=all[i]){
			v.pop_back();
		}
		while((int)v.size()>0&&all[v.back()]+(i-v.back())>t){
			v.pop_back();
		}
		if(all[i]>t){
			if((int)v.size()==0){
				res++;
			}else{
				allq[te]=(make_pair(v.back(),i-1));
				te++;
			}
		}
		v.push_back(i);
	}
}

void aval(){
	for(int i=0;i<te;i++){
		segmx.upd(1,0,kaf-1,allq[i].first,allq[i].second,1);
		segv.upd(1,0,kaf-1,allq[i].first,allq[i].second,i);
	}
}

void pre(){
	calbaz();
	aval();
}

void cal(){
//	int ind=getmx();
	pair<int,int>gm=segmx.pors(1,0,kaf-1,0,n+1);
	if(gm.first==0){
		return ;
	}
	res+=gm.first;
	segv.del(gm.second);
}

void solve(){
	for(int i=0;i<k;i++){
		cal();
	}
}

void khor(){
	res=n-res;
	cout<<res<<"\n";
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	//freopen("inp.txt","r",stdin);
	vorod();
	pre();
	solve();
	khor();
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 148232 KB Output is correct
2 Correct 37 ms 148308 KB Output is correct
3 Correct 37 ms 148312 KB Output is correct
4 Correct 38 ms 148248 KB Output is correct
5 Correct 38 ms 148220 KB Output is correct
6 Correct 37 ms 148308 KB Output is correct
7 Correct 41 ms 148304 KB Output is correct
8 Correct 37 ms 148316 KB Output is correct
9 Correct 37 ms 148316 KB Output is correct
10 Correct 36 ms 148316 KB Output is correct
11 Correct 38 ms 148312 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 148316 KB Output is correct
2 Correct 188 ms 160200 KB Output is correct
3 Correct 160 ms 156704 KB Output is correct
4 Correct 219 ms 162808 KB Output is correct
5 Correct 249 ms 167168 KB Output is correct
6 Correct 207 ms 161724 KB Output is correct
7 Correct 704 ms 207764 KB Output is correct
8 Correct 232 ms 164856 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 148232 KB Output is correct
2 Correct 37 ms 148308 KB Output is correct
3 Correct 37 ms 148312 KB Output is correct
4 Correct 38 ms 148248 KB Output is correct
5 Correct 38 ms 148220 KB Output is correct
6 Correct 37 ms 148308 KB Output is correct
7 Correct 41 ms 148304 KB Output is correct
8 Correct 37 ms 148316 KB Output is correct
9 Correct 37 ms 148316 KB Output is correct
10 Correct 36 ms 148316 KB Output is correct
11 Correct 38 ms 148312 KB Output is correct
12 Correct 36 ms 148312 KB Output is correct
13 Correct 37 ms 148304 KB Output is correct
14 Correct 38 ms 148308 KB Output is correct
15 Correct 36 ms 148304 KB Output is correct
16 Correct 39 ms 148316 KB Output is correct
17 Correct 38 ms 148212 KB Output is correct
18 Correct 37 ms 148220 KB Output is correct
19 Correct 37 ms 148568 KB Output is correct
20 Correct 37 ms 148308 KB Output is correct
21 Correct 36 ms 148252 KB Output is correct
22 Correct 37 ms 148316 KB Output is correct
23 Correct 38 ms 148316 KB Output is correct
24 Correct 39 ms 148228 KB Output is correct
25 Correct 38 ms 148460 KB Output is correct
26 Correct 41 ms 148492 KB Output is correct
27 Correct 38 ms 148316 KB Output is correct
28 Correct 38 ms 148316 KB Output is correct
29 Correct 38 ms 148276 KB Output is correct
30 Correct 37 ms 148216 KB Output is correct
31 Correct 37 ms 148308 KB Output is correct
32 Correct 36 ms 148272 KB Output is correct
33 Correct 38 ms 148208 KB Output is correct
34 Correct 40 ms 148260 KB Output is correct
35 Correct 39 ms 148672 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 148304 KB Output is correct
2 Correct 65 ms 150412 KB Output is correct
3 Correct 59 ms 149844 KB Output is correct
4 Correct 102 ms 153172 KB Output is correct
5 Correct 101 ms 153712 KB Output is correct
6 Correct 102 ms 153808 KB Output is correct
7 Correct 62 ms 150100 KB Output is correct
8 Correct 60 ms 149956 KB Output is correct
9 Correct 131 ms 156436 KB Output is correct
10 Correct 56 ms 149588 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 148232 KB Output is correct
2 Correct 37 ms 148308 KB Output is correct
3 Correct 37 ms 148312 KB Output is correct
4 Correct 38 ms 148248 KB Output is correct
5 Correct 38 ms 148220 KB Output is correct
6 Correct 37 ms 148308 KB Output is correct
7 Correct 41 ms 148304 KB Output is correct
8 Correct 37 ms 148316 KB Output is correct
9 Correct 37 ms 148316 KB Output is correct
10 Correct 36 ms 148316 KB Output is correct
11 Correct 38 ms 148312 KB Output is correct
12 Correct 36 ms 148312 KB Output is correct
13 Correct 37 ms 148304 KB Output is correct
14 Correct 38 ms 148308 KB Output is correct
15 Correct 36 ms 148304 KB Output is correct
16 Correct 39 ms 148316 KB Output is correct
17 Correct 38 ms 148212 KB Output is correct
18 Correct 37 ms 148220 KB Output is correct
19 Correct 37 ms 148568 KB Output is correct
20 Correct 37 ms 148308 KB Output is correct
21 Correct 36 ms 148252 KB Output is correct
22 Correct 37 ms 148316 KB Output is correct
23 Correct 38 ms 148316 KB Output is correct
24 Correct 39 ms 148228 KB Output is correct
25 Correct 38 ms 148460 KB Output is correct
26 Correct 41 ms 148492 KB Output is correct
27 Correct 38 ms 148316 KB Output is correct
28 Correct 38 ms 148316 KB Output is correct
29 Correct 38 ms 148276 KB Output is correct
30 Correct 37 ms 148216 KB Output is correct
31 Correct 37 ms 148308 KB Output is correct
32 Correct 36 ms 148272 KB Output is correct
33 Correct 38 ms 148208 KB Output is correct
34 Correct 40 ms 148260 KB Output is correct
35 Correct 39 ms 148672 KB Output is correct
36 Correct 37 ms 148304 KB Output is correct
37 Correct 65 ms 150412 KB Output is correct
38 Correct 59 ms 149844 KB Output is correct
39 Correct 102 ms 153172 KB Output is correct
40 Correct 101 ms 153712 KB Output is correct
41 Correct 102 ms 153808 KB Output is correct
42 Correct 62 ms 150100 KB Output is correct
43 Correct 60 ms 149956 KB Output is correct
44 Correct 131 ms 156436 KB Output is correct
45 Correct 56 ms 149588 KB Output is correct
46 Correct 38 ms 148316 KB Output is correct
47 Correct 38 ms 148252 KB Output is correct
48 Correct 37 ms 148316 KB Output is correct
49 Correct 37 ms 148304 KB Output is correct
50 Correct 37 ms 148312 KB Output is correct
51 Correct 38 ms 148304 KB Output is correct
52 Correct 38 ms 148308 KB Output is correct
53 Correct 37 ms 148312 KB Output is correct
54 Correct 40 ms 148224 KB Output is correct
55 Correct 36 ms 148224 KB Output is correct
56 Correct 36 ms 148304 KB Output is correct
57 Correct 38 ms 148468 KB Output is correct
58 Correct 39 ms 148308 KB Output is correct
59 Correct 39 ms 148316 KB Output is correct
60 Correct 39 ms 148316 KB Output is correct
61 Correct 39 ms 148240 KB Output is correct
62 Correct 38 ms 148208 KB Output is correct
63 Correct 38 ms 148316 KB Output is correct
64 Correct 40 ms 148308 KB Output is correct
65 Correct 38 ms 148316 KB Output is correct
66 Correct 38 ms 148232 KB Output is correct
67 Correct 38 ms 148436 KB Output is correct
68 Correct 38 ms 148316 KB Output is correct
69 Correct 40 ms 148316 KB Output is correct
70 Correct 40 ms 148312 KB Output is correct
71 Correct 65 ms 150352 KB Output is correct
72 Correct 60 ms 149836 KB Output is correct
73 Correct 102 ms 152912 KB Output is correct
74 Correct 102 ms 153664 KB Output is correct
75 Correct 102 ms 153808 KB Output is correct
76 Correct 62 ms 150100 KB Output is correct
77 Correct 59 ms 150096 KB Output is correct
78 Correct 129 ms 156316 KB Output is correct
79 Correct 59 ms 149844 KB Output is correct
80 Correct 64 ms 150096 KB Output is correct
81 Correct 76 ms 150300 KB Output is correct
82 Correct 71 ms 150132 KB Output is correct
83 Correct 94 ms 152656 KB Output is correct
84 Correct 77 ms 150864 KB Output is correct
85 Correct 106 ms 154200 KB Output is correct
86 Correct 84 ms 151152 KB Output is correct
87 Correct 71 ms 149840 KB Output is correct
88 Correct 113 ms 154672 KB Output is correct
89 Correct 144 ms 156924 KB Output is correct
90 Correct 111 ms 154608 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 148232 KB Output is correct
2 Correct 37 ms 148308 KB Output is correct
3 Correct 37 ms 148312 KB Output is correct
4 Correct 38 ms 148248 KB Output is correct
5 Correct 38 ms 148220 KB Output is correct
6 Correct 37 ms 148308 KB Output is correct
7 Correct 41 ms 148304 KB Output is correct
8 Correct 37 ms 148316 KB Output is correct
9 Correct 37 ms 148316 KB Output is correct
10 Correct 36 ms 148316 KB Output is correct
11 Correct 38 ms 148312 KB Output is correct
12 Correct 36 ms 148316 KB Output is correct
13 Correct 188 ms 160200 KB Output is correct
14 Correct 160 ms 156704 KB Output is correct
15 Correct 219 ms 162808 KB Output is correct
16 Correct 249 ms 167168 KB Output is correct
17 Correct 207 ms 161724 KB Output is correct
18 Correct 704 ms 207764 KB Output is correct
19 Correct 232 ms 164856 KB Output is correct
20 Correct 36 ms 148312 KB Output is correct
21 Correct 37 ms 148304 KB Output is correct
22 Correct 38 ms 148308 KB Output is correct
23 Correct 36 ms 148304 KB Output is correct
24 Correct 39 ms 148316 KB Output is correct
25 Correct 38 ms 148212 KB Output is correct
26 Correct 37 ms 148220 KB Output is correct
27 Correct 37 ms 148568 KB Output is correct
28 Correct 37 ms 148308 KB Output is correct
29 Correct 36 ms 148252 KB Output is correct
30 Correct 37 ms 148316 KB Output is correct
31 Correct 38 ms 148316 KB Output is correct
32 Correct 39 ms 148228 KB Output is correct
33 Correct 38 ms 148460 KB Output is correct
34 Correct 41 ms 148492 KB Output is correct
35 Correct 38 ms 148316 KB Output is correct
36 Correct 38 ms 148316 KB Output is correct
37 Correct 38 ms 148276 KB Output is correct
38 Correct 37 ms 148216 KB Output is correct
39 Correct 37 ms 148308 KB Output is correct
40 Correct 36 ms 148272 KB Output is correct
41 Correct 38 ms 148208 KB Output is correct
42 Correct 40 ms 148260 KB Output is correct
43 Correct 39 ms 148672 KB Output is correct
44 Correct 37 ms 148304 KB Output is correct
45 Correct 65 ms 150412 KB Output is correct
46 Correct 59 ms 149844 KB Output is correct
47 Correct 102 ms 153172 KB Output is correct
48 Correct 101 ms 153712 KB Output is correct
49 Correct 102 ms 153808 KB Output is correct
50 Correct 62 ms 150100 KB Output is correct
51 Correct 60 ms 149956 KB Output is correct
52 Correct 131 ms 156436 KB Output is correct
53 Correct 56 ms 149588 KB Output is correct
54 Correct 38 ms 148316 KB Output is correct
55 Correct 38 ms 148252 KB Output is correct
56 Correct 37 ms 148316 KB Output is correct
57 Correct 37 ms 148304 KB Output is correct
58 Correct 37 ms 148312 KB Output is correct
59 Correct 38 ms 148304 KB Output is correct
60 Correct 38 ms 148308 KB Output is correct
61 Correct 37 ms 148312 KB Output is correct
62 Correct 40 ms 148224 KB Output is correct
63 Correct 36 ms 148224 KB Output is correct
64 Correct 36 ms 148304 KB Output is correct
65 Correct 38 ms 148468 KB Output is correct
66 Correct 39 ms 148308 KB Output is correct
67 Correct 39 ms 148316 KB Output is correct
68 Correct 39 ms 148316 KB Output is correct
69 Correct 39 ms 148240 KB Output is correct
70 Correct 38 ms 148208 KB Output is correct
71 Correct 38 ms 148316 KB Output is correct
72 Correct 40 ms 148308 KB Output is correct
73 Correct 38 ms 148316 KB Output is correct
74 Correct 38 ms 148232 KB Output is correct
75 Correct 38 ms 148436 KB Output is correct
76 Correct 38 ms 148316 KB Output is correct
77 Correct 40 ms 148316 KB Output is correct
78 Correct 40 ms 148312 KB Output is correct
79 Correct 65 ms 150352 KB Output is correct
80 Correct 60 ms 149836 KB Output is correct
81 Correct 102 ms 152912 KB Output is correct
82 Correct 102 ms 153664 KB Output is correct
83 Correct 102 ms 153808 KB Output is correct
84 Correct 62 ms 150100 KB Output is correct
85 Correct 59 ms 150096 KB Output is correct
86 Correct 129 ms 156316 KB Output is correct
87 Correct 59 ms 149844 KB Output is correct
88 Correct 64 ms 150096 KB Output is correct
89 Correct 76 ms 150300 KB Output is correct
90 Correct 71 ms 150132 KB Output is correct
91 Correct 94 ms 152656 KB Output is correct
92 Correct 77 ms 150864 KB Output is correct
93 Correct 106 ms 154200 KB Output is correct
94 Correct 84 ms 151152 KB Output is correct
95 Correct 71 ms 149840 KB Output is correct
96 Correct 113 ms 154672 KB Output is correct
97 Correct 144 ms 156924 KB Output is correct
98 Correct 111 ms 154608 KB Output is correct
99 Correct 38 ms 148308 KB Output is correct
100 Correct 38 ms 148304 KB Output is correct
101 Correct 40 ms 148256 KB Output is correct
102 Correct 37 ms 148308 KB Output is correct
103 Correct 36 ms 148304 KB Output is correct
104 Correct 38 ms 148308 KB Output is correct
105 Correct 41 ms 148416 KB Output is correct
106 Correct 37 ms 148304 KB Output is correct
107 Correct 38 ms 148304 KB Output is correct
108 Correct 44 ms 148136 KB Output is correct
109 Correct 79 ms 148312 KB Output is correct
110 Correct 38 ms 148308 KB Output is correct
111 Correct 194 ms 160028 KB Output is correct
112 Correct 157 ms 156756 KB Output is correct
113 Correct 216 ms 162380 KB Output is correct
114 Correct 252 ms 167180 KB Output is correct
115 Correct 203 ms 161832 KB Output is correct
116 Correct 707 ms 207444 KB Output is correct
117 Correct 231 ms 164788 KB Output is correct
118 Correct 39 ms 148460 KB Output is correct
119 Correct 38 ms 148316 KB Output is correct
120 Correct 41 ms 148564 KB Output is correct
121 Correct 38 ms 148316 KB Output is correct
122 Correct 38 ms 148456 KB Output is correct
123 Correct 39 ms 148304 KB Output is correct
124 Correct 38 ms 148420 KB Output is correct
125 Correct 37 ms 148260 KB Output is correct
126 Correct 38 ms 148308 KB Output is correct
127 Correct 37 ms 148304 KB Output is correct
128 Correct 37 ms 148408 KB Output is correct
129 Correct 39 ms 148372 KB Output is correct
130 Correct 39 ms 148304 KB Output is correct
131 Correct 37 ms 148316 KB Output is correct
132 Correct 64 ms 150284 KB Output is correct
133 Correct 59 ms 149940 KB Output is correct
134 Correct 93 ms 152828 KB Output is correct
135 Correct 100 ms 153808 KB Output is correct
136 Correct 101 ms 153888 KB Output is correct
137 Correct 61 ms 150216 KB Output is correct
138 Correct 60 ms 150112 KB Output is correct
139 Correct 123 ms 156212 KB Output is correct
140 Correct 54 ms 149840 KB Output is correct
141 Correct 64 ms 150096 KB Output is correct
142 Correct 75 ms 150468 KB Output is correct
143 Correct 69 ms 150100 KB Output is correct
144 Correct 93 ms 152660 KB Output is correct
145 Correct 80 ms 150796 KB Output is correct
146 Correct 106 ms 154244 KB Output is correct
147 Correct 83 ms 151064 KB Output is correct
148 Correct 65 ms 149840 KB Output is correct
149 Correct 112 ms 154540 KB Output is correct
150 Correct 142 ms 157236 KB Output is correct
151 Correct 110 ms 154656 KB Output is correct
152 Correct 653 ms 199084 KB Output is correct
153 Correct 692 ms 202904 KB Output is correct
154 Correct 621 ms 195412 KB Output is correct
155 Correct 1410 ms 256792 KB Output is correct
156 Correct 1144 ms 228980 KB Output is correct
157 Correct 511 ms 184068 KB Output is correct
158 Correct 852 ms 210564 KB Output is correct
159 Execution timed out 2057 ms 361924 KB Time limit exceeded
160 Halted 0 ms 0 KB -