oj.uz

Submission #970235

# Submission time Handle Problem Language Result Execution time Memory
970235 2024-04-26T08:48:41 Z amirhoseinfar1385 The short shank; Redemption (BOI21_prison) C++17
100 / 100
 1819 ms 372148 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;
			}
		}
	}
	inline 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));
	}
	inline void shift(int i){
		if(i>=kaf){
			return ;
		}
		if(seg[(i)].lazy==0){
			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;
			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)];
	char hey[(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){
			if(hey[i]==0){
				for(auto x:seg[i]){
					remove(x);
				}
				hey[i]=1;
			}
			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 83 ms 150196 KB Output is correct
2 Correct 35 ms 150096 KB Output is correct
3 Correct 39 ms 150316 KB Output is correct
4 Correct 40 ms 150096 KB Output is correct
5 Correct 37 ms 150100 KB Output is correct
6 Correct 37 ms 150104 KB Output is correct
7 Correct 36 ms 150104 KB Output is correct
8 Correct 42 ms 150316 KB Output is correct
9 Correct 37 ms 150104 KB Output is correct
10 Correct 40 ms 150232 KB Output is correct
11 Correct 38 ms 150096 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 150268 KB Output is correct
2 Correct 159 ms 161876 KB Output is correct
3 Correct 132 ms 158580 KB Output is correct
4 Correct 184 ms 164420 KB Output is correct
5 Correct 217 ms 169016 KB Output is correct
6 Correct 170 ms 163772 KB Output is correct
7 Correct 548 ms 209288 KB Output is correct
8 Correct 196 ms 166712 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 150196 KB Output is correct
2 Correct 35 ms 150096 KB Output is correct
3 Correct 39 ms 150316 KB Output is correct
4 Correct 40 ms 150096 KB Output is correct
5 Correct 37 ms 150100 KB Output is correct
6 Correct 37 ms 150104 KB Output is correct
7 Correct 36 ms 150104 KB Output is correct
8 Correct 42 ms 150316 KB Output is correct
9 Correct 37 ms 150104 KB Output is correct
10 Correct 40 ms 150232 KB Output is correct
11 Correct 38 ms 150096 KB Output is correct
12 Correct 37 ms 150360 KB Output is correct
13 Correct 38 ms 150108 KB Output is correct
14 Correct 36 ms 150096 KB Output is correct
15 Correct 37 ms 150204 KB Output is correct
16 Correct 39 ms 150100 KB Output is correct
17 Correct 37 ms 150344 KB Output is correct
18 Correct 36 ms 150284 KB Output is correct
19 Correct 37 ms 150100 KB Output is correct
20 Correct 38 ms 150316 KB Output is correct
21 Correct 37 ms 150100 KB Output is correct
22 Correct 36 ms 150284 KB Output is correct
23 Correct 39 ms 150356 KB Output is correct
24 Correct 38 ms 150284 KB Output is correct
25 Correct 39 ms 150356 KB Output is correct
26 Correct 38 ms 150356 KB Output is correct
27 Correct 38 ms 150364 KB Output is correct
28 Correct 39 ms 150352 KB Output is correct
29 Correct 38 ms 150364 KB Output is correct
30 Correct 38 ms 150360 KB Output is correct
31 Correct 38 ms 150364 KB Output is correct
32 Correct 38 ms 150364 KB Output is correct
33 Correct 38 ms 150356 KB Output is correct
34 Correct 39 ms 150356 KB Output is correct
35 Correct 39 ms 150256 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 150520 KB Output is correct
2 Correct 60 ms 152400 KB Output is correct
3 Correct 59 ms 151892 KB Output is correct
4 Correct 88 ms 154704 KB Output is correct
5 Correct 90 ms 155732 KB Output is correct
6 Correct 87 ms 155672 KB Output is correct
7 Correct 56 ms 152236 KB Output is correct
8 Correct 54 ms 151964 KB Output is correct
9 Correct 107 ms 157968 KB Output is correct
10 Correct 57 ms 151640 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 150196 KB Output is correct
2 Correct 35 ms 150096 KB Output is correct
3 Correct 39 ms 150316 KB Output is correct
4 Correct 40 ms 150096 KB Output is correct
5 Correct 37 ms 150100 KB Output is correct
6 Correct 37 ms 150104 KB Output is correct
7 Correct 36 ms 150104 KB Output is correct
8 Correct 42 ms 150316 KB Output is correct
9 Correct 37 ms 150104 KB Output is correct
10 Correct 40 ms 150232 KB Output is correct
11 Correct 38 ms 150096 KB Output is correct
12 Correct 37 ms 150360 KB Output is correct
13 Correct 38 ms 150108 KB Output is correct
14 Correct 36 ms 150096 KB Output is correct
15 Correct 37 ms 150204 KB Output is correct
16 Correct 39 ms 150100 KB Output is correct
17 Correct 37 ms 150344 KB Output is correct
18 Correct 36 ms 150284 KB Output is correct
19 Correct 37 ms 150100 KB Output is correct
20 Correct 38 ms 150316 KB Output is correct
21 Correct 37 ms 150100 KB Output is correct
22 Correct 36 ms 150284 KB Output is correct
23 Correct 39 ms 150356 KB Output is correct
24 Correct 38 ms 150284 KB Output is correct
25 Correct 39 ms 150356 KB Output is correct
26 Correct 38 ms 150356 KB Output is correct
27 Correct 38 ms 150364 KB Output is correct
28 Correct 39 ms 150352 KB Output is correct
29 Correct 38 ms 150364 KB Output is correct
30 Correct 38 ms 150360 KB Output is correct
31 Correct 38 ms 150364 KB Output is correct
32 Correct 38 ms 150364 KB Output is correct
33 Correct 38 ms 150356 KB Output is correct
34 Correct 39 ms 150356 KB Output is correct
35 Correct 39 ms 150256 KB Output is correct
36 Correct 36 ms 150520 KB Output is correct
37 Correct 60 ms 152400 KB Output is correct
38 Correct 59 ms 151892 KB Output is correct
39 Correct 88 ms 154704 KB Output is correct
40 Correct 90 ms 155732 KB Output is correct
41 Correct 87 ms 155672 KB Output is correct
42 Correct 56 ms 152236 KB Output is correct
43 Correct 54 ms 151964 KB Output is correct
44 Correct 107 ms 157968 KB Output is correct
45 Correct 57 ms 151640 KB Output is correct
46 Correct 37 ms 150108 KB Output is correct
47 Correct 37 ms 150308 KB Output is correct
48 Correct 38 ms 150188 KB Output is correct
49 Correct 37 ms 150444 KB Output is correct
50 Correct 38 ms 150312 KB Output is correct
51 Correct 37 ms 150100 KB Output is correct
52 Correct 39 ms 150100 KB Output is correct
53 Correct 38 ms 150068 KB Output is correct
54 Correct 37 ms 150108 KB Output is correct
55 Correct 37 ms 150096 KB Output is correct
56 Correct 44 ms 150272 KB Output is correct
57 Correct 39 ms 150412 KB Output is correct
58 Correct 40 ms 150352 KB Output is correct
59 Correct 38 ms 150232 KB Output is correct
60 Correct 39 ms 150356 KB Output is correct
61 Correct 41 ms 150352 KB Output is correct
62 Correct 43 ms 150352 KB Output is correct
63 Correct 37 ms 150352 KB Output is correct
64 Correct 38 ms 150352 KB Output is correct
65 Correct 38 ms 150352 KB Output is correct
66 Correct 37 ms 150324 KB Output is correct
67 Correct 37 ms 150284 KB Output is correct
68 Correct 38 ms 150364 KB Output is correct
69 Correct 38 ms 150428 KB Output is correct
70 Correct 37 ms 150056 KB Output is correct
71 Correct 60 ms 152404 KB Output is correct
72 Correct 55 ms 151896 KB Output is correct
73 Correct 83 ms 154704 KB Output is correct
74 Correct 88 ms 155596 KB Output is correct
75 Correct 88 ms 155856 KB Output is correct
76 Correct 54 ms 152144 KB Output is correct
77 Correct 54 ms 152124 KB Output is correct
78 Correct 108 ms 158180 KB Output is correct
79 Correct 53 ms 151632 KB Output is correct
80 Correct 61 ms 152068 KB Output is correct
81 Correct 70 ms 152404 KB Output is correct
82 Correct 65 ms 152144 KB Output is correct
83 Correct 82 ms 154708 KB Output is correct
84 Correct 72 ms 152912 KB Output is correct
85 Correct 93 ms 156304 KB Output is correct
86 Correct 75 ms 153172 KB Output is correct
87 Correct 62 ms 151752 KB Output is correct
88 Correct 94 ms 156428 KB Output is correct
89 Correct 107 ms 158968 KB Output is correct
90 Correct 101 ms 156636 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 150196 KB Output is correct
2 Correct 35 ms 150096 KB Output is correct
3 Correct 39 ms 150316 KB Output is correct
4 Correct 40 ms 150096 KB Output is correct
5 Correct 37 ms 150100 KB Output is correct
6 Correct 37 ms 150104 KB Output is correct
7 Correct 36 ms 150104 KB Output is correct
8 Correct 42 ms 150316 KB Output is correct
9 Correct 37 ms 150104 KB Output is correct
10 Correct 40 ms 150232 KB Output is correct
11 Correct 38 ms 150096 KB Output is correct
12 Correct 37 ms 150268 KB Output is correct
13 Correct 159 ms 161876 KB Output is correct
14 Correct 132 ms 158580 KB Output is correct
15 Correct 184 ms 164420 KB Output is correct
16 Correct 217 ms 169016 KB Output is correct
17 Correct 170 ms 163772 KB Output is correct
18 Correct 548 ms 209288 KB Output is correct
19 Correct 196 ms 166712 KB Output is correct
20 Correct 37 ms 150360 KB Output is correct
21 Correct 38 ms 150108 KB Output is correct
22 Correct 36 ms 150096 KB Output is correct
23 Correct 37 ms 150204 KB Output is correct
24 Correct 39 ms 150100 KB Output is correct
25 Correct 37 ms 150344 KB Output is correct
26 Correct 36 ms 150284 KB Output is correct
27 Correct 37 ms 150100 KB Output is correct
28 Correct 38 ms 150316 KB Output is correct
29 Correct 37 ms 150100 KB Output is correct
30 Correct 36 ms 150284 KB Output is correct
31 Correct 39 ms 150356 KB Output is correct
32 Correct 38 ms 150284 KB Output is correct
33 Correct 39 ms 150356 KB Output is correct
34 Correct 38 ms 150356 KB Output is correct
35 Correct 38 ms 150364 KB Output is correct
36 Correct 39 ms 150352 KB Output is correct
37 Correct 38 ms 150364 KB Output is correct
38 Correct 38 ms 150360 KB Output is correct
39 Correct 38 ms 150364 KB Output is correct
40 Correct 38 ms 150364 KB Output is correct
41 Correct 38 ms 150356 KB Output is correct
42 Correct 39 ms 150356 KB Output is correct
43 Correct 39 ms 150256 KB Output is correct
44 Correct 36 ms 150520 KB Output is correct
45 Correct 60 ms 152400 KB Output is correct
46 Correct 59 ms 151892 KB Output is correct
47 Correct 88 ms 154704 KB Output is correct
48 Correct 90 ms 155732 KB Output is correct
49 Correct 87 ms 155672 KB Output is correct
50 Correct 56 ms 152236 KB Output is correct
51 Correct 54 ms 151964 KB Output is correct
52 Correct 107 ms 157968 KB Output is correct
53 Correct 57 ms 151640 KB Output is correct
54 Correct 37 ms 150108 KB Output is correct
55 Correct 37 ms 150308 KB Output is correct
56 Correct 38 ms 150188 KB Output is correct
57 Correct 37 ms 150444 KB Output is correct
58 Correct 38 ms 150312 KB Output is correct
59 Correct 37 ms 150100 KB Output is correct
60 Correct 39 ms 150100 KB Output is correct
61 Correct 38 ms 150068 KB Output is correct
62 Correct 37 ms 150108 KB Output is correct
63 Correct 37 ms 150096 KB Output is correct
64 Correct 44 ms 150272 KB Output is correct
65 Correct 39 ms 150412 KB Output is correct
66 Correct 40 ms 150352 KB Output is correct
67 Correct 38 ms 150232 KB Output is correct
68 Correct 39 ms 150356 KB Output is correct
69 Correct 41 ms 150352 KB Output is correct
70 Correct 43 ms 150352 KB Output is correct
71 Correct 37 ms 150352 KB Output is correct
72 Correct 38 ms 150352 KB Output is correct
73 Correct 38 ms 150352 KB Output is correct
74 Correct 37 ms 150324 KB Output is correct
75 Correct 37 ms 150284 KB Output is correct
76 Correct 38 ms 150364 KB Output is correct
77 Correct 38 ms 150428 KB Output is correct
78 Correct 37 ms 150056 KB Output is correct
79 Correct 60 ms 152404 KB Output is correct
80 Correct 55 ms 151896 KB Output is correct
81 Correct 83 ms 154704 KB Output is correct
82 Correct 88 ms 155596 KB Output is correct
83 Correct 88 ms 155856 KB Output is correct
84 Correct 54 ms 152144 KB Output is correct
85 Correct 54 ms 152124 KB Output is correct
86 Correct 108 ms 158180 KB Output is correct
87 Correct 53 ms 151632 KB Output is correct
88 Correct 61 ms 152068 KB Output is correct
89 Correct 70 ms 152404 KB Output is correct
90 Correct 65 ms 152144 KB Output is correct
91 Correct 82 ms 154708 KB Output is correct
92 Correct 72 ms 152912 KB Output is correct
93 Correct 93 ms 156304 KB Output is correct
94 Correct 75 ms 153172 KB Output is correct
95 Correct 62 ms 151752 KB Output is correct
96 Correct 94 ms 156428 KB Output is correct
97 Correct 107 ms 158968 KB Output is correct
98 Correct 101 ms 156636 KB Output is correct
99 Correct 36 ms 150096 KB Output is correct
100 Correct 38 ms 150096 KB Output is correct
101 Correct 38 ms 150300 KB Output is correct
102 Correct 37 ms 150312 KB Output is correct
103 Correct 38 ms 150268 KB Output is correct
104 Correct 37 ms 150100 KB Output is correct
105 Correct 37 ms 150100 KB Output is correct
106 Correct 37 ms 150096 KB Output is correct
107 Correct 38 ms 150100 KB Output is correct
108 Correct 38 ms 150224 KB Output is correct
109 Correct 36 ms 150220 KB Output is correct
110 Correct 39 ms 150100 KB Output is correct
111 Correct 158 ms 161872 KB Output is correct
112 Correct 128 ms 158800 KB Output is correct
113 Correct 182 ms 164432 KB Output is correct
114 Correct 217 ms 168996 KB Output is correct
115 Correct 193 ms 163772 KB Output is correct
116 Correct 567 ms 209476 KB Output is correct
117 Correct 194 ms 166708 KB Output is correct
118 Correct 38 ms 150356 KB Output is correct
119 Correct 38 ms 150264 KB Output is correct
120 Correct 39 ms 150364 KB Output is correct
121 Correct 38 ms 150272 KB Output is correct
122 Correct 40 ms 150352 KB Output is correct
123 Correct 40 ms 150236 KB Output is correct
124 Correct 38 ms 150364 KB Output is correct
125 Correct 39 ms 150364 KB Output is correct
126 Correct 39 ms 150288 KB Output is correct
127 Correct 38 ms 150616 KB Output is correct
128 Correct 38 ms 150204 KB Output is correct
129 Correct 40 ms 150356 KB Output is correct
130 Correct 40 ms 150360 KB Output is correct
131 Correct 38 ms 150104 KB Output is correct
132 Correct 59 ms 152400 KB Output is correct
133 Correct 57 ms 151892 KB Output is correct
134 Correct 85 ms 154704 KB Output is correct
135 Correct 88 ms 155624 KB Output is correct
136 Correct 88 ms 155856 KB Output is correct
137 Correct 57 ms 152148 KB Output is correct
138 Correct 60 ms 152144 KB Output is correct
139 Correct 104 ms 157972 KB Output is correct
140 Correct 52 ms 151592 KB Output is correct
141 Correct 62 ms 152148 KB Output is correct
142 Correct 69 ms 152404 KB Output is correct
143 Correct 65 ms 152152 KB Output is correct
144 Correct 88 ms 154716 KB Output is correct
145 Correct 73 ms 152916 KB Output is correct
146 Correct 94 ms 156240 KB Output is correct
147 Correct 75 ms 153112 KB Output is correct
148 Correct 61 ms 151948 KB Output is correct
149 Correct 97 ms 156468 KB Output is correct
150 Correct 111 ms 158896 KB Output is correct
151 Correct 95 ms 156588 KB Output is correct
152 Correct 551 ms 203080 KB Output is correct
153 Correct 586 ms 206996 KB Output is correct
154 Correct 510 ms 199236 KB Output is correct
155 Correct 1190 ms 259252 KB Output is correct
156 Correct 991 ms 233300 KB Output is correct
157 Correct 400 ms 187056 KB Output is correct
158 Correct 688 ms 213896 KB Output is correct
159 Correct 1819 ms 365520 KB Output is correct
160 Correct 1804 ms 372148 KB Output is correct
161 Correct 581 ms 208516 KB Output is correct
162 Correct 496 ms 213472 KB Output is correct