oj.uz

Submission #970225

# Submission time Handle Problem Language Result Execution time Memory
970225 2024-04-26T08:38:43 Z amirhoseinfar1385 The short shank; Redemption (BOI21_prison) C++17
80 / 100
 2000 ms 378096 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],res=0,vas[maxn],kaf=(1<<21);
vector<pair<int,int>>allq;

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.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);
	}
}

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:141:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  141 |  for(int i=0;i<allq.size();i++){
      |              ~^~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 148304 KB Output is correct
2 Correct 38 ms 148304 KB Output is correct
3 Correct 37 ms 148316 KB Output is correct
4 Correct 38 ms 148316 KB Output is correct
5 Correct 38 ms 148212 KB Output is correct
6 Correct 37 ms 148304 KB Output is correct
7 Correct 37 ms 148308 KB Output is correct
8 Correct 38 ms 148368 KB Output is correct
9 Correct 37 ms 148208 KB Output is correct
10 Correct 37 ms 148208 KB Output is correct
11 Correct 37 ms 148316 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 148268 KB Output is correct
2 Correct 195 ms 160300 KB Output is correct
3 Correct 161 ms 156900 KB Output is correct
4 Correct 218 ms 162620 KB Output is correct
5 Correct 279 ms 167296 KB Output is correct
6 Correct 219 ms 161996 KB Output is correct
7 Correct 745 ms 208024 KB Output is correct
8 Correct 232 ms 164892 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 148304 KB Output is correct
2 Correct 38 ms 148304 KB Output is correct
3 Correct 37 ms 148316 KB Output is correct
4 Correct 38 ms 148316 KB Output is correct
5 Correct 38 ms 148212 KB Output is correct
6 Correct 37 ms 148304 KB Output is correct
7 Correct 37 ms 148308 KB Output is correct
8 Correct 38 ms 148368 KB Output is correct
9 Correct 37 ms 148208 KB Output is correct
10 Correct 37 ms 148208 KB Output is correct
11 Correct 37 ms 148316 KB Output is correct
12 Correct 37 ms 148304 KB Output is correct
13 Correct 39 ms 148308 KB Output is correct
14 Correct 46 ms 148304 KB Output is correct
15 Correct 41 ms 148304 KB Output is correct
16 Correct 41 ms 148308 KB Output is correct
17 Correct 39 ms 148308 KB Output is correct
18 Correct 38 ms 148240 KB Output is correct
19 Correct 37 ms 148304 KB Output is correct
20 Correct 37 ms 148316 KB Output is correct
21 Correct 37 ms 148316 KB Output is correct
22 Correct 41 ms 148164 KB Output is correct
23 Correct 38 ms 148308 KB Output is correct
24 Correct 40 ms 148232 KB Output is correct
25 Correct 39 ms 148308 KB Output is correct
26 Correct 39 ms 148308 KB Output is correct
27 Correct 39 ms 148412 KB Output is correct
28 Correct 38 ms 148312 KB Output is correct
29 Correct 38 ms 148316 KB Output is correct
30 Correct 38 ms 148316 KB Output is correct
31 Correct 45 ms 148308 KB Output is correct
32 Correct 38 ms 148304 KB Output is correct
33 Correct 38 ms 148316 KB Output is correct
34 Correct 39 ms 148408 KB Output is correct
35 Correct 39 ms 148304 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 148304 KB Output is correct
2 Correct 65 ms 150480 KB Output is correct
3 Correct 61 ms 150128 KB Output is correct
4 Correct 93 ms 152860 KB Output is correct
5 Correct 101 ms 153808 KB Output is correct
6 Correct 100 ms 153968 KB Output is correct
7 Correct 60 ms 150036 KB Output is correct
8 Correct 62 ms 150244 KB Output is correct
9 Correct 122 ms 157132 KB Output is correct
10 Correct 55 ms 149940 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 148304 KB Output is correct
2 Correct 38 ms 148304 KB Output is correct
3 Correct 37 ms 148316 KB Output is correct
4 Correct 38 ms 148316 KB Output is correct
5 Correct 38 ms 148212 KB Output is correct
6 Correct 37 ms 148304 KB Output is correct
7 Correct 37 ms 148308 KB Output is correct
8 Correct 38 ms 148368 KB Output is correct
9 Correct 37 ms 148208 KB Output is correct
10 Correct 37 ms 148208 KB Output is correct
11 Correct 37 ms 148316 KB Output is correct
12 Correct 37 ms 148304 KB Output is correct
13 Correct 39 ms 148308 KB Output is correct
14 Correct 46 ms 148304 KB Output is correct
15 Correct 41 ms 148304 KB Output is correct
16 Correct 41 ms 148308 KB Output is correct
17 Correct 39 ms 148308 KB Output is correct
18 Correct 38 ms 148240 KB Output is correct
19 Correct 37 ms 148304 KB Output is correct
20 Correct 37 ms 148316 KB Output is correct
21 Correct 37 ms 148316 KB Output is correct
22 Correct 41 ms 148164 KB Output is correct
23 Correct 38 ms 148308 KB Output is correct
24 Correct 40 ms 148232 KB Output is correct
25 Correct 39 ms 148308 KB Output is correct
26 Correct 39 ms 148308 KB Output is correct
27 Correct 39 ms 148412 KB Output is correct
28 Correct 38 ms 148312 KB Output is correct
29 Correct 38 ms 148316 KB Output is correct
30 Correct 38 ms 148316 KB Output is correct
31 Correct 45 ms 148308 KB Output is correct
32 Correct 38 ms 148304 KB Output is correct
33 Correct 38 ms 148316 KB Output is correct
34 Correct 39 ms 148408 KB Output is correct
35 Correct 39 ms 148304 KB Output is correct
36 Correct 77 ms 148304 KB Output is correct
37 Correct 65 ms 150480 KB Output is correct
38 Correct 61 ms 150128 KB Output is correct
39 Correct 93 ms 152860 KB Output is correct
40 Correct 101 ms 153808 KB Output is correct
41 Correct 100 ms 153968 KB Output is correct
42 Correct 60 ms 150036 KB Output is correct
43 Correct 62 ms 150244 KB Output is correct
44 Correct 122 ms 157132 KB Output is correct
45 Correct 55 ms 149940 KB Output is correct
46 Correct 36 ms 148304 KB Output is correct
47 Correct 36 ms 148236 KB Output is correct
48 Correct 38 ms 148308 KB Output is correct
49 Correct 37 ms 148176 KB Output is correct
50 Correct 37 ms 148160 KB Output is correct
51 Correct 39 ms 148308 KB Output is correct
52 Correct 36 ms 148304 KB Output is correct
53 Correct 47 ms 148224 KB Output is correct
54 Correct 39 ms 148316 KB Output is correct
55 Correct 37 ms 148312 KB Output is correct
56 Correct 43 ms 148308 KB Output is correct
57 Correct 39 ms 148316 KB Output is correct
58 Correct 38 ms 148556 KB Output is correct
59 Correct 39 ms 148396 KB Output is correct
60 Correct 39 ms 148304 KB Output is correct
61 Correct 38 ms 148484 KB Output is correct
62 Correct 36 ms 148436 KB Output is correct
63 Correct 38 ms 148316 KB Output is correct
64 Correct 38 ms 148304 KB Output is correct
65 Correct 37 ms 148304 KB Output is correct
66 Correct 38 ms 148308 KB Output is correct
67 Correct 37 ms 148232 KB Output is correct
68 Correct 39 ms 148308 KB Output is correct
69 Correct 42 ms 148304 KB Output is correct
70 Correct 37 ms 148312 KB Output is correct
71 Correct 65 ms 150368 KB Output is correct
72 Correct 60 ms 149968 KB Output is correct
73 Correct 94 ms 152908 KB Output is correct
74 Correct 102 ms 153852 KB Output is correct
75 Correct 102 ms 153808 KB Output is correct
76 Correct 62 ms 150228 KB Output is correct
77 Correct 88 ms 149976 KB Output is correct
78 Correct 125 ms 157260 KB Output is correct
79 Correct 60 ms 149968 KB Output is correct
80 Correct 71 ms 149968 KB Output is correct
81 Correct 81 ms 150484 KB Output is correct
82 Correct 71 ms 150048 KB Output is correct
83 Correct 94 ms 152560 KB Output is correct
84 Correct 80 ms 150736 KB Output is correct
85 Correct 109 ms 154272 KB Output is correct
86 Correct 105 ms 151116 KB Output is correct
87 Correct 66 ms 149720 KB Output is correct
88 Correct 112 ms 154508 KB Output is correct
89 Correct 130 ms 158692 KB Output is correct
90 Correct 109 ms 155028 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 148304 KB Output is correct
2 Correct 38 ms 148304 KB Output is correct
3 Correct 37 ms 148316 KB Output is correct
4 Correct 38 ms 148316 KB Output is correct
5 Correct 38 ms 148212 KB Output is correct
6 Correct 37 ms 148304 KB Output is correct
7 Correct 37 ms 148308 KB Output is correct
8 Correct 38 ms 148368 KB Output is correct
9 Correct 37 ms 148208 KB Output is correct
10 Correct 37 ms 148208 KB Output is correct
11 Correct 37 ms 148316 KB Output is correct
12 Correct 37 ms 148268 KB Output is correct
13 Correct 195 ms 160300 KB Output is correct
14 Correct 161 ms 156900 KB Output is correct
15 Correct 218 ms 162620 KB Output is correct
16 Correct 279 ms 167296 KB Output is correct
17 Correct 219 ms 161996 KB Output is correct
18 Correct 745 ms 208024 KB Output is correct
19 Correct 232 ms 164892 KB Output is correct
20 Correct 37 ms 148304 KB Output is correct
21 Correct 39 ms 148308 KB Output is correct
22 Correct 46 ms 148304 KB Output is correct
23 Correct 41 ms 148304 KB Output is correct
24 Correct 41 ms 148308 KB Output is correct
25 Correct 39 ms 148308 KB Output is correct
26 Correct 38 ms 148240 KB Output is correct
27 Correct 37 ms 148304 KB Output is correct
28 Correct 37 ms 148316 KB Output is correct
29 Correct 37 ms 148316 KB Output is correct
30 Correct 41 ms 148164 KB Output is correct
31 Correct 38 ms 148308 KB Output is correct
32 Correct 40 ms 148232 KB Output is correct
33 Correct 39 ms 148308 KB Output is correct
34 Correct 39 ms 148308 KB Output is correct
35 Correct 39 ms 148412 KB Output is correct
36 Correct 38 ms 148312 KB Output is correct
37 Correct 38 ms 148316 KB Output is correct
38 Correct 38 ms 148316 KB Output is correct
39 Correct 45 ms 148308 KB Output is correct
40 Correct 38 ms 148304 KB Output is correct
41 Correct 38 ms 148316 KB Output is correct
42 Correct 39 ms 148408 KB Output is correct
43 Correct 39 ms 148304 KB Output is correct
44 Correct 77 ms 148304 KB Output is correct
45 Correct 65 ms 150480 KB Output is correct
46 Correct 61 ms 150128 KB Output is correct
47 Correct 93 ms 152860 KB Output is correct
48 Correct 101 ms 153808 KB Output is correct
49 Correct 100 ms 153968 KB Output is correct
50 Correct 60 ms 150036 KB Output is correct
51 Correct 62 ms 150244 KB Output is correct
52 Correct 122 ms 157132 KB Output is correct
53 Correct 55 ms 149940 KB Output is correct
54 Correct 36 ms 148304 KB Output is correct
55 Correct 36 ms 148236 KB Output is correct
56 Correct 38 ms 148308 KB Output is correct
57 Correct 37 ms 148176 KB Output is correct
58 Correct 37 ms 148160 KB Output is correct
59 Correct 39 ms 148308 KB Output is correct
60 Correct 36 ms 148304 KB Output is correct
61 Correct 47 ms 148224 KB Output is correct
62 Correct 39 ms 148316 KB Output is correct
63 Correct 37 ms 148312 KB Output is correct
64 Correct 43 ms 148308 KB Output is correct
65 Correct 39 ms 148316 KB Output is correct
66 Correct 38 ms 148556 KB Output is correct
67 Correct 39 ms 148396 KB Output is correct
68 Correct 39 ms 148304 KB Output is correct
69 Correct 38 ms 148484 KB Output is correct
70 Correct 36 ms 148436 KB Output is correct
71 Correct 38 ms 148316 KB Output is correct
72 Correct 38 ms 148304 KB Output is correct
73 Correct 37 ms 148304 KB Output is correct
74 Correct 38 ms 148308 KB Output is correct
75 Correct 37 ms 148232 KB Output is correct
76 Correct 39 ms 148308 KB Output is correct
77 Correct 42 ms 148304 KB Output is correct
78 Correct 37 ms 148312 KB Output is correct
79 Correct 65 ms 150368 KB Output is correct
80 Correct 60 ms 149968 KB Output is correct
81 Correct 94 ms 152908 KB Output is correct
82 Correct 102 ms 153852 KB Output is correct
83 Correct 102 ms 153808 KB Output is correct
84 Correct 62 ms 150228 KB Output is correct
85 Correct 88 ms 149976 KB Output is correct
86 Correct 125 ms 157260 KB Output is correct
87 Correct 60 ms 149968 KB Output is correct
88 Correct 71 ms 149968 KB Output is correct
89 Correct 81 ms 150484 KB Output is correct
90 Correct 71 ms 150048 KB Output is correct
91 Correct 94 ms 152560 KB Output is correct
92 Correct 80 ms 150736 KB Output is correct
93 Correct 109 ms 154272 KB Output is correct
94 Correct 105 ms 151116 KB Output is correct
95 Correct 66 ms 149720 KB Output is correct
96 Correct 112 ms 154508 KB Output is correct
97 Correct 130 ms 158692 KB Output is correct
98 Correct 109 ms 155028 KB Output is correct
99 Correct 36 ms 148304 KB Output is correct
100 Correct 38 ms 148312 KB Output is correct
101 Correct 35 ms 148308 KB Output is correct
102 Correct 37 ms 148308 KB Output is correct
103 Correct 36 ms 148312 KB Output is correct
104 Correct 39 ms 148244 KB Output is correct
105 Correct 36 ms 148252 KB Output is correct
106 Correct 36 ms 148316 KB Output is correct
107 Correct 37 ms 148240 KB Output is correct
108 Correct 37 ms 148176 KB Output is correct
109 Correct 37 ms 148308 KB Output is correct
110 Correct 37 ms 148268 KB Output is correct
111 Correct 196 ms 160348 KB Output is correct
112 Correct 156 ms 156868 KB Output is correct
113 Correct 215 ms 162544 KB Output is correct
114 Correct 259 ms 167264 KB Output is correct
115 Correct 206 ms 161992 KB Output is correct
116 Correct 696 ms 208252 KB Output is correct
117 Correct 231 ms 164808 KB Output is correct
118 Correct 37 ms 148304 KB Output is correct
119 Correct 37 ms 148308 KB Output is correct
120 Correct 39 ms 148316 KB Output is correct
121 Correct 38 ms 148308 KB Output is correct
122 Correct 42 ms 148308 KB Output is correct
123 Correct 37 ms 148348 KB Output is correct
124 Correct 39 ms 148464 KB Output is correct
125 Correct 37 ms 148256 KB Output is correct
126 Correct 37 ms 148304 KB Output is correct
127 Correct 38 ms 148308 KB Output is correct
128 Correct 37 ms 148316 KB Output is correct
129 Correct 44 ms 148316 KB Output is correct
130 Correct 62 ms 148704 KB Output is correct
131 Correct 36 ms 148316 KB Output is correct
132 Correct 63 ms 150336 KB Output is correct
133 Correct 60 ms 149972 KB Output is correct
134 Correct 94 ms 152808 KB Output is correct
135 Correct 101 ms 153812 KB Output is correct
136 Correct 107 ms 154168 KB Output is correct
137 Correct 62 ms 150136 KB Output is correct
138 Correct 61 ms 149972 KB Output is correct
139 Correct 124 ms 157136 KB Output is correct
140 Correct 57 ms 149712 KB Output is correct
141 Correct 68 ms 149940 KB Output is correct
142 Correct 76 ms 150476 KB Output is correct
143 Correct 72 ms 149972 KB Output is correct
144 Correct 94 ms 152556 KB Output is correct
145 Correct 79 ms 150660 KB Output is correct
146 Correct 110 ms 154360 KB Output is correct
147 Correct 82 ms 150980 KB Output is correct
148 Correct 68 ms 149872 KB Output is correct
149 Correct 134 ms 154744 KB Output is correct
150 Correct 131 ms 158668 KB Output is correct
151 Correct 115 ms 154900 KB Output is correct
152 Correct 665 ms 198912 KB Output is correct
153 Correct 709 ms 202904 KB Output is correct
154 Correct 634 ms 195484 KB Output is correct
155 Correct 1424 ms 257092 KB Output is correct
156 Correct 1171 ms 229280 KB Output is correct
157 Correct 521 ms 184088 KB Output is correct
158 Correct 857 ms 211332 KB Output is correct
159 Execution timed out 2064 ms 378096 KB Time limit exceeded
160 Halted 0 ms 0 KB -