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Submission #970223

# Submission time Handle Problem Language Result Execution time Memory
970223 2024-04-26T08:35:07 Z amirhoseinfar1385 The short shank; Redemption (BOI21_prison) C++17
80 / 100
 2000 ms 524288 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn=2000000+10;
long long n,k,t,inf=1e9+5;
int all[maxn],res=0,vas[maxn],kaf=(1<<21);
vector<pair<int,int>>allq;
set<int>alld[maxn];

struct segment{
	struct node{
		long long lazy;
		pair<long long,long long>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.push_back(make_pair(v.back(),i-1));
			}
		}
		v.push_back(i);
	}
}

void aval(){
	for(int i=0;i<allq.size();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);
	//	for(int j=allq[i].first;j<=allq[i].second;j++){
	//		alld[j].insert(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();
}

Compilation message

prison.cpp: In function 'void aval()':
prison.cpp:140:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  140 |  for(int i=0;i<allq.size();i++){
      |              ~^~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 133 ms 291920 KB Output is correct
2 Correct 118 ms 291844 KB Output is correct
3 Correct 107 ms 291920 KB Output is correct
4 Correct 111 ms 291812 KB Output is correct
5 Correct 110 ms 292024 KB Output is correct
6 Correct 112 ms 292000 KB Output is correct
7 Correct 109 ms 291816 KB Output is correct
8 Correct 119 ms 291920 KB Output is correct
9 Correct 109 ms 292016 KB Output is correct
10 Correct 110 ms 291920 KB Output is correct
11 Correct 109 ms 291792 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 291776 KB Output is correct
2 Correct 272 ms 303664 KB Output is correct
3 Correct 236 ms 300488 KB Output is correct
4 Correct 345 ms 306232 KB Output is correct
5 Correct 338 ms 310784 KB Output is correct
6 Correct 291 ms 305444 KB Output is correct
7 Correct 867 ms 351168 KB Output is correct
8 Correct 393 ms 308164 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 133 ms 291920 KB Output is correct
2 Correct 118 ms 291844 KB Output is correct
3 Correct 107 ms 291920 KB Output is correct
4 Correct 111 ms 291812 KB Output is correct
5 Correct 110 ms 292024 KB Output is correct
6 Correct 112 ms 292000 KB Output is correct
7 Correct 109 ms 291816 KB Output is correct
8 Correct 119 ms 291920 KB Output is correct
9 Correct 109 ms 292016 KB Output is correct
10 Correct 110 ms 291920 KB Output is correct
11 Correct 109 ms 291792 KB Output is correct
12 Correct 119 ms 291940 KB Output is correct
13 Correct 150 ms 291984 KB Output is correct
14 Correct 100 ms 292024 KB Output is correct
15 Correct 100 ms 291860 KB Output is correct
16 Correct 102 ms 292176 KB Output is correct
17 Correct 102 ms 291768 KB Output is correct
18 Correct 104 ms 291860 KB Output is correct
19 Correct 102 ms 291920 KB Output is correct
20 Correct 101 ms 291920 KB Output is correct
21 Correct 103 ms 292020 KB Output is correct
22 Correct 101 ms 291792 KB Output is correct
23 Correct 102 ms 291920 KB Output is correct
24 Correct 103 ms 292116 KB Output is correct
25 Correct 103 ms 292204 KB Output is correct
26 Correct 102 ms 292136 KB Output is correct
27 Correct 100 ms 291924 KB Output is correct
28 Correct 100 ms 291920 KB Output is correct
29 Correct 105 ms 292284 KB Output is correct
30 Correct 101 ms 292124 KB Output is correct
31 Correct 101 ms 292136 KB Output is correct
32 Correct 99 ms 291924 KB Output is correct
33 Correct 105 ms 292172 KB Output is correct
34 Correct 114 ms 292000 KB Output is correct
35 Correct 100 ms 291992 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 291764 KB Output is correct
2 Correct 130 ms 294084 KB Output is correct
3 Correct 124 ms 294288 KB Output is correct
4 Correct 161 ms 296924 KB Output is correct
5 Correct 169 ms 298236 KB Output is correct
6 Correct 168 ms 298132 KB Output is correct
7 Correct 125 ms 294384 KB Output is correct
8 Correct 121 ms 294360 KB Output is correct
9 Correct 218 ms 301200 KB Output is correct
10 Correct 120 ms 294076 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 133 ms 291920 KB Output is correct
2 Correct 118 ms 291844 KB Output is correct
3 Correct 107 ms 291920 KB Output is correct
4 Correct 111 ms 291812 KB Output is correct
5 Correct 110 ms 292024 KB Output is correct
6 Correct 112 ms 292000 KB Output is correct
7 Correct 109 ms 291816 KB Output is correct
8 Correct 119 ms 291920 KB Output is correct
9 Correct 109 ms 292016 KB Output is correct
10 Correct 110 ms 291920 KB Output is correct
11 Correct 109 ms 291792 KB Output is correct
12 Correct 119 ms 291940 KB Output is correct
13 Correct 150 ms 291984 KB Output is correct
14 Correct 100 ms 292024 KB Output is correct
15 Correct 100 ms 291860 KB Output is correct
16 Correct 102 ms 292176 KB Output is correct
17 Correct 102 ms 291768 KB Output is correct
18 Correct 104 ms 291860 KB Output is correct
19 Correct 102 ms 291920 KB Output is correct
20 Correct 101 ms 291920 KB Output is correct
21 Correct 103 ms 292020 KB Output is correct
22 Correct 101 ms 291792 KB Output is correct
23 Correct 102 ms 291920 KB Output is correct
24 Correct 103 ms 292116 KB Output is correct
25 Correct 103 ms 292204 KB Output is correct
26 Correct 102 ms 292136 KB Output is correct
27 Correct 100 ms 291924 KB Output is correct
28 Correct 100 ms 291920 KB Output is correct
29 Correct 105 ms 292284 KB Output is correct
30 Correct 101 ms 292124 KB Output is correct
31 Correct 101 ms 292136 KB Output is correct
32 Correct 99 ms 291924 KB Output is correct
33 Correct 105 ms 292172 KB Output is correct
34 Correct 114 ms 292000 KB Output is correct
35 Correct 100 ms 291992 KB Output is correct
36 Correct 99 ms 291764 KB Output is correct
37 Correct 130 ms 294084 KB Output is correct
38 Correct 124 ms 294288 KB Output is correct
39 Correct 161 ms 296924 KB Output is correct
40 Correct 169 ms 298236 KB Output is correct
41 Correct 168 ms 298132 KB Output is correct
42 Correct 125 ms 294384 KB Output is correct
43 Correct 121 ms 294360 KB Output is correct
44 Correct 218 ms 301200 KB Output is correct
45 Correct 120 ms 294076 KB Output is correct
46 Correct 98 ms 291876 KB Output is correct
47 Correct 101 ms 291920 KB Output is correct
48 Correct 103 ms 292100 KB Output is correct
49 Correct 100 ms 291920 KB Output is correct
50 Correct 106 ms 291864 KB Output is correct
51 Correct 100 ms 291780 KB Output is correct
52 Correct 101 ms 291924 KB Output is correct
53 Correct 102 ms 291920 KB Output is correct
54 Correct 99 ms 291812 KB Output is correct
55 Correct 98 ms 291828 KB Output is correct
56 Correct 103 ms 292152 KB Output is correct
57 Correct 103 ms 291920 KB Output is correct
58 Correct 101 ms 291924 KB Output is correct
59 Correct 101 ms 291996 KB Output is correct
60 Correct 105 ms 292180 KB Output is correct
61 Correct 100 ms 291936 KB Output is correct
62 Correct 100 ms 292120 KB Output is correct
63 Correct 100 ms 292112 KB Output is correct
64 Correct 105 ms 292152 KB Output is correct
65 Correct 102 ms 292140 KB Output is correct
66 Correct 101 ms 291920 KB Output is correct
67 Correct 103 ms 291924 KB Output is correct
68 Correct 103 ms 291924 KB Output is correct
69 Correct 101 ms 292080 KB Output is correct
70 Correct 103 ms 291996 KB Output is correct
71 Correct 126 ms 294804 KB Output is correct
72 Correct 127 ms 294292 KB Output is correct
73 Correct 162 ms 297040 KB Output is correct
74 Correct 167 ms 298116 KB Output is correct
75 Correct 173 ms 298356 KB Output is correct
76 Correct 124 ms 294252 KB Output is correct
77 Correct 121 ms 294356 KB Output is correct
78 Correct 213 ms 301260 KB Output is correct
79 Correct 126 ms 294104 KB Output is correct
80 Correct 130 ms 294352 KB Output is correct
81 Correct 146 ms 294800 KB Output is correct
82 Correct 135 ms 294336 KB Output is correct
83 Correct 156 ms 296684 KB Output is correct
84 Correct 146 ms 294604 KB Output is correct
85 Correct 171 ms 298568 KB Output is correct
86 Correct 151 ms 295420 KB Output is correct
87 Correct 129 ms 294076 KB Output is correct
88 Correct 177 ms 298704 KB Output is correct
89 Correct 207 ms 302796 KB Output is correct
90 Correct 207 ms 298828 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 133 ms 291920 KB Output is correct
2 Correct 118 ms 291844 KB Output is correct
3 Correct 107 ms 291920 KB Output is correct
4 Correct 111 ms 291812 KB Output is correct
5 Correct 110 ms 292024 KB Output is correct
6 Correct 112 ms 292000 KB Output is correct
7 Correct 109 ms 291816 KB Output is correct
8 Correct 119 ms 291920 KB Output is correct
9 Correct 109 ms 292016 KB Output is correct
10 Correct 110 ms 291920 KB Output is correct
11 Correct 109 ms 291792 KB Output is correct
12 Correct 114 ms 291776 KB Output is correct
13 Correct 272 ms 303664 KB Output is correct
14 Correct 236 ms 300488 KB Output is correct
15 Correct 345 ms 306232 KB Output is correct
16 Correct 338 ms 310784 KB Output is correct
17 Correct 291 ms 305444 KB Output is correct
18 Correct 867 ms 351168 KB Output is correct
19 Correct 393 ms 308164 KB Output is correct
20 Correct 119 ms 291940 KB Output is correct
21 Correct 150 ms 291984 KB Output is correct
22 Correct 100 ms 292024 KB Output is correct
23 Correct 100 ms 291860 KB Output is correct
24 Correct 102 ms 292176 KB Output is correct
25 Correct 102 ms 291768 KB Output is correct
26 Correct 104 ms 291860 KB Output is correct
27 Correct 102 ms 291920 KB Output is correct
28 Correct 101 ms 291920 KB Output is correct
29 Correct 103 ms 292020 KB Output is correct
30 Correct 101 ms 291792 KB Output is correct
31 Correct 102 ms 291920 KB Output is correct
32 Correct 103 ms 292116 KB Output is correct
33 Correct 103 ms 292204 KB Output is correct
34 Correct 102 ms 292136 KB Output is correct
35 Correct 100 ms 291924 KB Output is correct
36 Correct 100 ms 291920 KB Output is correct
37 Correct 105 ms 292284 KB Output is correct
38 Correct 101 ms 292124 KB Output is correct
39 Correct 101 ms 292136 KB Output is correct
40 Correct 99 ms 291924 KB Output is correct
41 Correct 105 ms 292172 KB Output is correct
42 Correct 114 ms 292000 KB Output is correct
43 Correct 100 ms 291992 KB Output is correct
44 Correct 99 ms 291764 KB Output is correct
45 Correct 130 ms 294084 KB Output is correct
46 Correct 124 ms 294288 KB Output is correct
47 Correct 161 ms 296924 KB Output is correct
48 Correct 169 ms 298236 KB Output is correct
49 Correct 168 ms 298132 KB Output is correct
50 Correct 125 ms 294384 KB Output is correct
51 Correct 121 ms 294360 KB Output is correct
52 Correct 218 ms 301200 KB Output is correct
53 Correct 120 ms 294076 KB Output is correct
54 Correct 98 ms 291876 KB Output is correct
55 Correct 101 ms 291920 KB Output is correct
56 Correct 103 ms 292100 KB Output is correct
57 Correct 100 ms 291920 KB Output is correct
58 Correct 106 ms 291864 KB Output is correct
59 Correct 100 ms 291780 KB Output is correct
60 Correct 101 ms 291924 KB Output is correct
61 Correct 102 ms 291920 KB Output is correct
62 Correct 99 ms 291812 KB Output is correct
63 Correct 98 ms 291828 KB Output is correct
64 Correct 103 ms 292152 KB Output is correct
65 Correct 103 ms 291920 KB Output is correct
66 Correct 101 ms 291924 KB Output is correct
67 Correct 101 ms 291996 KB Output is correct
68 Correct 105 ms 292180 KB Output is correct
69 Correct 100 ms 291936 KB Output is correct
70 Correct 100 ms 292120 KB Output is correct
71 Correct 100 ms 292112 KB Output is correct
72 Correct 105 ms 292152 KB Output is correct
73 Correct 102 ms 292140 KB Output is correct
74 Correct 101 ms 291920 KB Output is correct
75 Correct 103 ms 291924 KB Output is correct
76 Correct 103 ms 291924 KB Output is correct
77 Correct 101 ms 292080 KB Output is correct
78 Correct 103 ms 291996 KB Output is correct
79 Correct 126 ms 294804 KB Output is correct
80 Correct 127 ms 294292 KB Output is correct
81 Correct 162 ms 297040 KB Output is correct
82 Correct 167 ms 298116 KB Output is correct
83 Correct 173 ms 298356 KB Output is correct
84 Correct 124 ms 294252 KB Output is correct
85 Correct 121 ms 294356 KB Output is correct
86 Correct 213 ms 301260 KB Output is correct
87 Correct 126 ms 294104 KB Output is correct
88 Correct 130 ms 294352 KB Output is correct
89 Correct 146 ms 294800 KB Output is correct
90 Correct 135 ms 294336 KB Output is correct
91 Correct 156 ms 296684 KB Output is correct
92 Correct 146 ms 294604 KB Output is correct
93 Correct 171 ms 298568 KB Output is correct
94 Correct 151 ms 295420 KB Output is correct
95 Correct 129 ms 294076 KB Output is correct
96 Correct 177 ms 298704 KB Output is correct
97 Correct 207 ms 302796 KB Output is correct
98 Correct 207 ms 298828 KB Output is correct
99 Correct 98 ms 291924 KB Output is correct
100 Correct 102 ms 291924 KB Output is correct
101 Correct 98 ms 291920 KB Output is correct
102 Correct 100 ms 291856 KB Output is correct
103 Correct 100 ms 291988 KB Output is correct
104 Correct 99 ms 291920 KB Output is correct
105 Correct 101 ms 292120 KB Output is correct
106 Correct 99 ms 292016 KB Output is correct
107 Correct 100 ms 291924 KB Output is correct
108 Correct 101 ms 291856 KB Output is correct
109 Correct 99 ms 291780 KB Output is correct
110 Correct 101 ms 291856 KB Output is correct
111 Correct 256 ms 308740 KB Output is correct
112 Correct 219 ms 305352 KB Output is correct
113 Correct 289 ms 309536 KB Output is correct
114 Correct 356 ms 312764 KB Output is correct
115 Correct 285 ms 309484 KB Output is correct
116 Correct 873 ms 355024 KB Output is correct
117 Correct 306 ms 312140 KB Output is correct
118 Correct 100 ms 291960 KB Output is correct
119 Correct 100 ms 291920 KB Output is correct
120 Correct 100 ms 292116 KB Output is correct
121 Correct 102 ms 292116 KB Output is correct
122 Correct 102 ms 291920 KB Output is correct
123 Correct 100 ms 291924 KB Output is correct
124 Correct 112 ms 291920 KB Output is correct
125 Correct 104 ms 291924 KB Output is correct
126 Correct 101 ms 292028 KB Output is correct
127 Correct 102 ms 291916 KB Output is correct
128 Correct 100 ms 292004 KB Output is correct
129 Correct 102 ms 291924 KB Output is correct
130 Correct 102 ms 291924 KB Output is correct
131 Correct 99 ms 291920 KB Output is correct
132 Correct 126 ms 294876 KB Output is correct
133 Correct 121 ms 294352 KB Output is correct
134 Correct 172 ms 297040 KB Output is correct
135 Correct 167 ms 298188 KB Output is correct
136 Correct 169 ms 298188 KB Output is correct
137 Correct 124 ms 294300 KB Output is correct
138 Correct 122 ms 294356 KB Output is correct
139 Correct 196 ms 301348 KB Output is correct
140 Correct 126 ms 294096 KB Output is correct
141 Correct 128 ms 294356 KB Output is correct
142 Correct 140 ms 294868 KB Output is correct
143 Correct 136 ms 294352 KB Output is correct
144 Correct 159 ms 296644 KB Output is correct
145 Correct 142 ms 294692 KB Output is correct
146 Correct 175 ms 298712 KB Output is correct
147 Correct 150 ms 295228 KB Output is correct
148 Correct 135 ms 294132 KB Output is correct
149 Correct 210 ms 298704 KB Output is correct
150 Correct 199 ms 302800 KB Output is correct
151 Correct 178 ms 298960 KB Output is correct
152 Correct 785 ms 361652 KB Output is correct
153 Correct 783 ms 365524 KB Output is correct
154 Correct 711 ms 358040 KB Output is correct
155 Correct 1616 ms 414352 KB Output is correct
156 Correct 1295 ms 380012 KB Output is correct
157 Correct 584 ms 344084 KB Output is correct
158 Correct 944 ms 371632 KB Output is correct
159 Execution timed out 2122 ms 524288 KB Time limit exceeded
160 Halted 0 ms 0 KB -