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Submission #970229

# Submission time Handle Problem Language Result Execution time Memory
970229 2024-04-26T08:44:31 Z amirhoseinfar1385 The short shank; Redemption (BOI21_prison) C++17
80 / 100
 2000 ms 362860 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];

void fastscan(int &number) 
{ 
    register int c; 
    number = 0; 
    c = getchar(); 
    for (; (c>47 && c<58); c=getchar()) 
        number = number *10 + c - 48; 
} 

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;
	fastscan(n);
	fastscan(k);
	fastscan(t);
	for(int i=1;i<=n;i++){
		//cin>>all[i];
		fastscan(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 khor(){
	res=n-res;
	cout<<res<<"\n";
}

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

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

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 fastscan(int&)':
prison.cpp:12:18: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   12 |     register int c;
      |                  ^

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 148304 KB Output is correct
2 Correct 38 ms 148364 KB Output is correct
3 Correct 39 ms 148304 KB Output is correct
4 Correct 38 ms 148160 KB Output is correct
5 Correct 37 ms 148312 KB Output is correct
6 Correct 37 ms 148464 KB Output is correct
7 Correct 37 ms 148308 KB Output is correct
8 Correct 36 ms 148304 KB Output is correct
9 Correct 37 ms 148304 KB Output is correct
10 Correct 39 ms 148304 KB Output is correct
11 Correct 37 ms 148312 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 148308 KB Output is correct
2 Correct 169 ms 159988 KB Output is correct
3 Correct 133 ms 156724 KB Output is correct
4 Correct 197 ms 162324 KB Output is correct
5 Correct 236 ms 166996 KB Output is correct
6 Correct 186 ms 161892 KB Output is correct
7 Correct 674 ms 207528 KB Output is correct
8 Correct 212 ms 164736 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 148304 KB Output is correct
2 Correct 38 ms 148364 KB Output is correct
3 Correct 39 ms 148304 KB Output is correct
4 Correct 38 ms 148160 KB Output is correct
5 Correct 37 ms 148312 KB Output is correct
6 Correct 37 ms 148464 KB Output is correct
7 Correct 37 ms 148308 KB Output is correct
8 Correct 36 ms 148304 KB Output is correct
9 Correct 37 ms 148304 KB Output is correct
10 Correct 39 ms 148304 KB Output is correct
11 Correct 37 ms 148312 KB Output is correct
12 Correct 38 ms 148316 KB Output is correct
13 Correct 35 ms 148224 KB Output is correct
14 Correct 36 ms 148308 KB Output is correct
15 Correct 38 ms 148348 KB Output is correct
16 Correct 39 ms 148308 KB Output is correct
17 Correct 37 ms 148312 KB Output is correct
18 Correct 38 ms 148316 KB Output is correct
19 Correct 38 ms 148316 KB Output is correct
20 Correct 37 ms 148200 KB Output is correct
21 Correct 37 ms 148368 KB Output is correct
22 Correct 37 ms 148304 KB Output is correct
23 Correct 38 ms 148308 KB Output is correct
24 Correct 37 ms 148308 KB Output is correct
25 Correct 37 ms 148304 KB Output is correct
26 Correct 38 ms 148440 KB Output is correct
27 Correct 39 ms 148316 KB Output is correct
28 Correct 37 ms 148304 KB Output is correct
29 Correct 37 ms 148480 KB Output is correct
30 Correct 38 ms 148308 KB Output is correct
31 Correct 39 ms 148456 KB Output is correct
32 Correct 37 ms 148316 KB Output is correct
33 Correct 38 ms 148312 KB Output is correct
34 Correct 39 ms 148308 KB Output is correct
35 Correct 39 ms 148388 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 148160 KB Output is correct
2 Correct 62 ms 150340 KB Output is correct
3 Correct 58 ms 150200 KB Output is correct
4 Correct 92 ms 152940 KB Output is correct
5 Correct 103 ms 153888 KB Output is correct
6 Correct 96 ms 153724 KB Output is correct
7 Correct 57 ms 150208 KB Output is correct
8 Correct 57 ms 150028 KB Output is correct
9 Correct 120 ms 156164 KB Output is correct
10 Correct 54 ms 149840 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 148304 KB Output is correct
2 Correct 38 ms 148364 KB Output is correct
3 Correct 39 ms 148304 KB Output is correct
4 Correct 38 ms 148160 KB Output is correct
5 Correct 37 ms 148312 KB Output is correct
6 Correct 37 ms 148464 KB Output is correct
7 Correct 37 ms 148308 KB Output is correct
8 Correct 36 ms 148304 KB Output is correct
9 Correct 37 ms 148304 KB Output is correct
10 Correct 39 ms 148304 KB Output is correct
11 Correct 37 ms 148312 KB Output is correct
12 Correct 38 ms 148316 KB Output is correct
13 Correct 35 ms 148224 KB Output is correct
14 Correct 36 ms 148308 KB Output is correct
15 Correct 38 ms 148348 KB Output is correct
16 Correct 39 ms 148308 KB Output is correct
17 Correct 37 ms 148312 KB Output is correct
18 Correct 38 ms 148316 KB Output is correct
19 Correct 38 ms 148316 KB Output is correct
20 Correct 37 ms 148200 KB Output is correct
21 Correct 37 ms 148368 KB Output is correct
22 Correct 37 ms 148304 KB Output is correct
23 Correct 38 ms 148308 KB Output is correct
24 Correct 37 ms 148308 KB Output is correct
25 Correct 37 ms 148304 KB Output is correct
26 Correct 38 ms 148440 KB Output is correct
27 Correct 39 ms 148316 KB Output is correct
28 Correct 37 ms 148304 KB Output is correct
29 Correct 37 ms 148480 KB Output is correct
30 Correct 38 ms 148308 KB Output is correct
31 Correct 39 ms 148456 KB Output is correct
32 Correct 37 ms 148316 KB Output is correct
33 Correct 38 ms 148312 KB Output is correct
34 Correct 39 ms 148308 KB Output is correct
35 Correct 39 ms 148388 KB Output is correct
36 Correct 36 ms 148160 KB Output is correct
37 Correct 62 ms 150340 KB Output is correct
38 Correct 58 ms 150200 KB Output is correct
39 Correct 92 ms 152940 KB Output is correct
40 Correct 103 ms 153888 KB Output is correct
41 Correct 96 ms 153724 KB Output is correct
42 Correct 57 ms 150208 KB Output is correct
43 Correct 57 ms 150028 KB Output is correct
44 Correct 120 ms 156164 KB Output is correct
45 Correct 54 ms 149840 KB Output is correct
46 Correct 37 ms 148312 KB Output is correct
47 Correct 36 ms 148304 KB Output is correct
48 Correct 39 ms 148316 KB Output is correct
49 Correct 36 ms 148316 KB Output is correct
50 Correct 37 ms 148308 KB Output is correct
51 Correct 40 ms 148316 KB Output is correct
52 Correct 40 ms 148216 KB Output is correct
53 Correct 35 ms 148228 KB Output is correct
54 Correct 37 ms 148308 KB Output is correct
55 Correct 36 ms 148316 KB Output is correct
56 Correct 36 ms 148572 KB Output is correct
57 Correct 38 ms 148208 KB Output is correct
58 Correct 40 ms 148308 KB Output is correct
59 Correct 39 ms 148316 KB Output is correct
60 Correct 37 ms 148312 KB Output is correct
61 Correct 42 ms 148472 KB Output is correct
62 Correct 40 ms 148304 KB Output is correct
63 Correct 41 ms 148432 KB Output is correct
64 Correct 38 ms 148312 KB Output is correct
65 Correct 38 ms 148232 KB Output is correct
66 Correct 38 ms 148304 KB Output is correct
67 Correct 38 ms 148224 KB Output is correct
68 Correct 37 ms 148312 KB Output is correct
69 Correct 38 ms 148308 KB Output is correct
70 Correct 38 ms 148236 KB Output is correct
71 Correct 62 ms 150356 KB Output is correct
72 Correct 56 ms 149840 KB Output is correct
73 Correct 96 ms 152964 KB Output is correct
74 Correct 96 ms 153812 KB Output is correct
75 Correct 98 ms 153784 KB Output is correct
76 Correct 58 ms 150104 KB Output is correct
77 Correct 55 ms 150096 KB Output is correct
78 Correct 120 ms 156472 KB Output is correct
79 Correct 53 ms 149840 KB Output is correct
80 Correct 63 ms 150096 KB Output is correct
81 Correct 71 ms 150352 KB Output is correct
82 Correct 74 ms 150548 KB Output is correct
83 Correct 92 ms 152656 KB Output is correct
84 Correct 77 ms 150772 KB Output is correct
85 Correct 109 ms 154192 KB Output is correct
86 Correct 78 ms 151216 KB Output is correct
87 Correct 62 ms 149896 KB Output is correct
88 Correct 108 ms 154616 KB Output is correct
89 Correct 128 ms 156872 KB Output is correct
90 Correct 105 ms 154372 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 148304 KB Output is correct
2 Correct 38 ms 148364 KB Output is correct
3 Correct 39 ms 148304 KB Output is correct
4 Correct 38 ms 148160 KB Output is correct
5 Correct 37 ms 148312 KB Output is correct
6 Correct 37 ms 148464 KB Output is correct
7 Correct 37 ms 148308 KB Output is correct
8 Correct 36 ms 148304 KB Output is correct
9 Correct 37 ms 148304 KB Output is correct
10 Correct 39 ms 148304 KB Output is correct
11 Correct 37 ms 148312 KB Output is correct
12 Correct 38 ms 148308 KB Output is correct
13 Correct 169 ms 159988 KB Output is correct
14 Correct 133 ms 156724 KB Output is correct
15 Correct 197 ms 162324 KB Output is correct
16 Correct 236 ms 166996 KB Output is correct
17 Correct 186 ms 161892 KB Output is correct
18 Correct 674 ms 207528 KB Output is correct
19 Correct 212 ms 164736 KB Output is correct
20 Correct 38 ms 148316 KB Output is correct
21 Correct 35 ms 148224 KB Output is correct
22 Correct 36 ms 148308 KB Output is correct
23 Correct 38 ms 148348 KB Output is correct
24 Correct 39 ms 148308 KB Output is correct
25 Correct 37 ms 148312 KB Output is correct
26 Correct 38 ms 148316 KB Output is correct
27 Correct 38 ms 148316 KB Output is correct
28 Correct 37 ms 148200 KB Output is correct
29 Correct 37 ms 148368 KB Output is correct
30 Correct 37 ms 148304 KB Output is correct
31 Correct 38 ms 148308 KB Output is correct
32 Correct 37 ms 148308 KB Output is correct
33 Correct 37 ms 148304 KB Output is correct
34 Correct 38 ms 148440 KB Output is correct
35 Correct 39 ms 148316 KB Output is correct
36 Correct 37 ms 148304 KB Output is correct
37 Correct 37 ms 148480 KB Output is correct
38 Correct 38 ms 148308 KB Output is correct
39 Correct 39 ms 148456 KB Output is correct
40 Correct 37 ms 148316 KB Output is correct
41 Correct 38 ms 148312 KB Output is correct
42 Correct 39 ms 148308 KB Output is correct
43 Correct 39 ms 148388 KB Output is correct
44 Correct 36 ms 148160 KB Output is correct
45 Correct 62 ms 150340 KB Output is correct
46 Correct 58 ms 150200 KB Output is correct
47 Correct 92 ms 152940 KB Output is correct
48 Correct 103 ms 153888 KB Output is correct
49 Correct 96 ms 153724 KB Output is correct
50 Correct 57 ms 150208 KB Output is correct
51 Correct 57 ms 150028 KB Output is correct
52 Correct 120 ms 156164 KB Output is correct
53 Correct 54 ms 149840 KB Output is correct
54 Correct 37 ms 148312 KB Output is correct
55 Correct 36 ms 148304 KB Output is correct
56 Correct 39 ms 148316 KB Output is correct
57 Correct 36 ms 148316 KB Output is correct
58 Correct 37 ms 148308 KB Output is correct
59 Correct 40 ms 148316 KB Output is correct
60 Correct 40 ms 148216 KB Output is correct
61 Correct 35 ms 148228 KB Output is correct
62 Correct 37 ms 148308 KB Output is correct
63 Correct 36 ms 148316 KB Output is correct
64 Correct 36 ms 148572 KB Output is correct
65 Correct 38 ms 148208 KB Output is correct
66 Correct 40 ms 148308 KB Output is correct
67 Correct 39 ms 148316 KB Output is correct
68 Correct 37 ms 148312 KB Output is correct
69 Correct 42 ms 148472 KB Output is correct
70 Correct 40 ms 148304 KB Output is correct
71 Correct 41 ms 148432 KB Output is correct
72 Correct 38 ms 148312 KB Output is correct
73 Correct 38 ms 148232 KB Output is correct
74 Correct 38 ms 148304 KB Output is correct
75 Correct 38 ms 148224 KB Output is correct
76 Correct 37 ms 148312 KB Output is correct
77 Correct 38 ms 148308 KB Output is correct
78 Correct 38 ms 148236 KB Output is correct
79 Correct 62 ms 150356 KB Output is correct
80 Correct 56 ms 149840 KB Output is correct
81 Correct 96 ms 152964 KB Output is correct
82 Correct 96 ms 153812 KB Output is correct
83 Correct 98 ms 153784 KB Output is correct
84 Correct 58 ms 150104 KB Output is correct
85 Correct 55 ms 150096 KB Output is correct
86 Correct 120 ms 156472 KB Output is correct
87 Correct 53 ms 149840 KB Output is correct
88 Correct 63 ms 150096 KB Output is correct
89 Correct 71 ms 150352 KB Output is correct
90 Correct 74 ms 150548 KB Output is correct
91 Correct 92 ms 152656 KB Output is correct
92 Correct 77 ms 150772 KB Output is correct
93 Correct 109 ms 154192 KB Output is correct
94 Correct 78 ms 151216 KB Output is correct
95 Correct 62 ms 149896 KB Output is correct
96 Correct 108 ms 154616 KB Output is correct
97 Correct 128 ms 156872 KB Output is correct
98 Correct 105 ms 154372 KB Output is correct
99 Correct 35 ms 148304 KB Output is correct
100 Correct 36 ms 148308 KB Output is correct
101 Correct 37 ms 148308 KB Output is correct
102 Correct 37 ms 148316 KB Output is correct
103 Correct 37 ms 148364 KB Output is correct
104 Correct 36 ms 148308 KB Output is correct
105 Correct 36 ms 148304 KB Output is correct
106 Correct 42 ms 148360 KB Output is correct
107 Correct 39 ms 148308 KB Output is correct
108 Correct 37 ms 148304 KB Output is correct
109 Correct 36 ms 148308 KB Output is correct
110 Correct 36 ms 148296 KB Output is correct
111 Correct 167 ms 159824 KB Output is correct
112 Correct 159 ms 156752 KB Output is correct
113 Correct 194 ms 162332 KB Output is correct
114 Correct 239 ms 167212 KB Output is correct
115 Correct 182 ms 161952 KB Output is correct
116 Correct 726 ms 207528 KB Output is correct
117 Correct 209 ms 164660 KB Output is correct
118 Correct 38 ms 148308 KB Output is correct
119 Correct 38 ms 148312 KB Output is correct
120 Correct 41 ms 148316 KB Output is correct
121 Correct 38 ms 148316 KB Output is correct
122 Correct 37 ms 148308 KB Output is correct
123 Correct 38 ms 148316 KB Output is correct
124 Correct 37 ms 148308 KB Output is correct
125 Correct 38 ms 148232 KB Output is correct
126 Correct 37 ms 148316 KB Output is correct
127 Correct 37 ms 148428 KB Output is correct
128 Correct 37 ms 148316 KB Output is correct
129 Correct 38 ms 148308 KB Output is correct
130 Correct 39 ms 148508 KB Output is correct
131 Correct 37 ms 148308 KB Output is correct
132 Correct 60 ms 150352 KB Output is correct
133 Correct 57 ms 149928 KB Output is correct
134 Correct 92 ms 152912 KB Output is correct
135 Correct 98 ms 153804 KB Output is correct
136 Correct 106 ms 154440 KB Output is correct
137 Correct 59 ms 150048 KB Output is correct
138 Correct 59 ms 150096 KB Output is correct
139 Correct 121 ms 156176 KB Output is correct
140 Correct 52 ms 149588 KB Output is correct
141 Correct 71 ms 150080 KB Output is correct
142 Correct 74 ms 150352 KB Output is correct
143 Correct 66 ms 150100 KB Output is correct
144 Correct 91 ms 152676 KB Output is correct
145 Correct 75 ms 150868 KB Output is correct
146 Correct 103 ms 154192 KB Output is correct
147 Correct 78 ms 151052 KB Output is correct
148 Correct 64 ms 149744 KB Output is correct
149 Correct 107 ms 154672 KB Output is correct
150 Correct 133 ms 157180 KB Output is correct
151 Correct 105 ms 154360 KB Output is correct
152 Correct 576 ms 198860 KB Output is correct
153 Correct 637 ms 202872 KB Output is correct
154 Correct 552 ms 195332 KB Output is correct
155 Correct 1340 ms 257096 KB Output is correct
156 Correct 1094 ms 228948 KB Output is correct
157 Correct 425 ms 183892 KB Output is correct
158 Correct 772 ms 210824 KB Output is correct
159 Execution timed out 2041 ms 362860 KB Time limit exceeded
160 Halted 0 ms 0 KB -