oj.uz

Submission #970234

# Submission time Handle Problem Language Result Execution time Memory
970234 2024-04-26T08:47:03 Z amirhoseinfar1385 The short shank; Redemption (BOI21_prison) C++17
80 / 100
 2000 ms 365412 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 ;
		}
		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;
			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)];
	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 36 ms 150100 KB Output is correct
2 Correct 42 ms 150208 KB Output is correct
3 Correct 38 ms 150108 KB Output is correct
4 Correct 37 ms 150100 KB Output is correct
5 Correct 36 ms 150100 KB Output is correct
6 Correct 36 ms 150104 KB Output is correct
7 Correct 37 ms 150104 KB Output is correct
8 Correct 37 ms 150108 KB Output is correct
9 Correct 36 ms 150108 KB Output is correct
10 Correct 37 ms 150292 KB Output is correct
11 Correct 38 ms 150100 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 150100 KB Output is correct
2 Correct 165 ms 161920 KB Output is correct
3 Correct 131 ms 158684 KB Output is correct
4 Correct 193 ms 164512 KB Output is correct
5 Correct 226 ms 169040 KB Output is correct
6 Correct 193 ms 163776 KB Output is correct
7 Correct 658 ms 209500 KB Output is correct
8 Correct 208 ms 166528 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 150100 KB Output is correct
2 Correct 42 ms 150208 KB Output is correct
3 Correct 38 ms 150108 KB Output is correct
4 Correct 37 ms 150100 KB Output is correct
5 Correct 36 ms 150100 KB Output is correct
6 Correct 36 ms 150104 KB Output is correct
7 Correct 37 ms 150104 KB Output is correct
8 Correct 37 ms 150108 KB Output is correct
9 Correct 36 ms 150108 KB Output is correct
10 Correct 37 ms 150292 KB Output is correct
11 Correct 38 ms 150100 KB Output is correct
12 Correct 39 ms 150096 KB Output is correct
13 Correct 36 ms 150172 KB Output is correct
14 Correct 36 ms 150260 KB Output is correct
15 Correct 41 ms 150100 KB Output is correct
16 Correct 36 ms 150108 KB Output is correct
17 Correct 37 ms 150236 KB Output is correct
18 Correct 38 ms 150096 KB Output is correct
19 Correct 37 ms 150252 KB Output is correct
20 Correct 38 ms 150108 KB Output is correct
21 Correct 36 ms 150244 KB Output is correct
22 Correct 37 ms 150108 KB Output is correct
23 Correct 38 ms 150292 KB Output is correct
24 Correct 38 ms 150264 KB Output is correct
25 Correct 39 ms 150412 KB Output is correct
26 Correct 42 ms 150512 KB Output is correct
27 Correct 40 ms 150356 KB Output is correct
28 Correct 38 ms 150356 KB Output is correct
29 Correct 38 ms 150364 KB Output is correct
30 Correct 39 ms 150252 KB Output is correct
31 Correct 38 ms 150352 KB Output is correct
32 Correct 37 ms 150356 KB Output is correct
33 Correct 40 ms 150284 KB Output is correct
34 Correct 40 ms 150252 KB Output is correct
35 Correct 45 ms 150364 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 150100 KB Output is correct
2 Correct 62 ms 152400 KB Output is correct
3 Correct 56 ms 151892 KB Output is correct
4 Correct 97 ms 154980 KB Output is correct
5 Correct 95 ms 155600 KB Output is correct
6 Correct 94 ms 156024 KB Output is correct
7 Correct 57 ms 152056 KB Output is correct
8 Correct 63 ms 152144 KB Output is correct
9 Correct 118 ms 158128 KB Output is correct
10 Correct 51 ms 151792 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 150100 KB Output is correct
2 Correct 42 ms 150208 KB Output is correct
3 Correct 38 ms 150108 KB Output is correct
4 Correct 37 ms 150100 KB Output is correct
5 Correct 36 ms 150100 KB Output is correct
6 Correct 36 ms 150104 KB Output is correct
7 Correct 37 ms 150104 KB Output is correct
8 Correct 37 ms 150108 KB Output is correct
9 Correct 36 ms 150108 KB Output is correct
10 Correct 37 ms 150292 KB Output is correct
11 Correct 38 ms 150100 KB Output is correct
12 Correct 39 ms 150096 KB Output is correct
13 Correct 36 ms 150172 KB Output is correct
14 Correct 36 ms 150260 KB Output is correct
15 Correct 41 ms 150100 KB Output is correct
16 Correct 36 ms 150108 KB Output is correct
17 Correct 37 ms 150236 KB Output is correct
18 Correct 38 ms 150096 KB Output is correct
19 Correct 37 ms 150252 KB Output is correct
20 Correct 38 ms 150108 KB Output is correct
21 Correct 36 ms 150244 KB Output is correct
22 Correct 37 ms 150108 KB Output is correct
23 Correct 38 ms 150292 KB Output is correct
24 Correct 38 ms 150264 KB Output is correct
25 Correct 39 ms 150412 KB Output is correct
26 Correct 42 ms 150512 KB Output is correct
27 Correct 40 ms 150356 KB Output is correct
28 Correct 38 ms 150356 KB Output is correct
29 Correct 38 ms 150364 KB Output is correct
30 Correct 39 ms 150252 KB Output is correct
31 Correct 38 ms 150352 KB Output is correct
32 Correct 37 ms 150356 KB Output is correct
33 Correct 40 ms 150284 KB Output is correct
34 Correct 40 ms 150252 KB Output is correct
35 Correct 45 ms 150364 KB Output is correct
36 Correct 36 ms 150100 KB Output is correct
37 Correct 62 ms 152400 KB Output is correct
38 Correct 56 ms 151892 KB Output is correct
39 Correct 97 ms 154980 KB Output is correct
40 Correct 95 ms 155600 KB Output is correct
41 Correct 94 ms 156024 KB Output is correct
42 Correct 57 ms 152056 KB Output is correct
43 Correct 63 ms 152144 KB Output is correct
44 Correct 118 ms 158128 KB Output is correct
45 Correct 51 ms 151792 KB Output is correct
46 Correct 38 ms 150108 KB Output is correct
47 Correct 36 ms 150108 KB Output is correct
48 Correct 36 ms 150108 KB Output is correct
49 Correct 36 ms 150100 KB Output is correct
50 Correct 35 ms 150356 KB Output is correct
51 Correct 35 ms 150100 KB Output is correct
52 Correct 36 ms 150096 KB Output is correct
53 Correct 36 ms 150096 KB Output is correct
54 Correct 35 ms 150100 KB Output is correct
55 Correct 35 ms 150096 KB Output is correct
56 Correct 35 ms 150096 KB Output is correct
57 Correct 38 ms 150228 KB Output is correct
58 Correct 36 ms 150352 KB Output is correct
59 Correct 38 ms 150356 KB Output is correct
60 Correct 37 ms 150356 KB Output is correct
61 Correct 38 ms 150364 KB Output is correct
62 Correct 37 ms 150240 KB Output is correct
63 Correct 37 ms 150312 KB Output is correct
64 Correct 37 ms 150356 KB Output is correct
65 Correct 43 ms 150352 KB Output is correct
66 Correct 36 ms 150380 KB Output is correct
67 Correct 37 ms 150248 KB Output is correct
68 Correct 37 ms 150352 KB Output is correct
69 Correct 39 ms 150356 KB Output is correct
70 Correct 35 ms 150268 KB Output is correct
71 Correct 59 ms 152480 KB Output is correct
72 Correct 63 ms 152064 KB Output is correct
73 Correct 89 ms 154964 KB Output is correct
74 Correct 95 ms 155792 KB Output is correct
75 Correct 100 ms 156092 KB Output is correct
76 Correct 57 ms 152144 KB Output is correct
77 Correct 55 ms 152148 KB Output is correct
78 Correct 123 ms 158004 KB Output is correct
79 Correct 51 ms 151736 KB Output is correct
80 Correct 62 ms 152148 KB Output is correct
81 Correct 74 ms 152648 KB Output is correct
82 Correct 67 ms 152148 KB Output is correct
83 Correct 88 ms 154704 KB Output is correct
84 Correct 74 ms 152920 KB Output is correct
85 Correct 100 ms 156240 KB Output is correct
86 Correct 77 ms 153168 KB Output is correct
87 Correct 63 ms 151936 KB Output is correct
88 Correct 107 ms 156644 KB Output is correct
89 Correct 128 ms 158972 KB Output is correct
90 Correct 102 ms 156588 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 150100 KB Output is correct
2 Correct 42 ms 150208 KB Output is correct
3 Correct 38 ms 150108 KB Output is correct
4 Correct 37 ms 150100 KB Output is correct
5 Correct 36 ms 150100 KB Output is correct
6 Correct 36 ms 150104 KB Output is correct
7 Correct 37 ms 150104 KB Output is correct
8 Correct 37 ms 150108 KB Output is correct
9 Correct 36 ms 150108 KB Output is correct
10 Correct 37 ms 150292 KB Output is correct
11 Correct 38 ms 150100 KB Output is correct
12 Correct 36 ms 150100 KB Output is correct
13 Correct 165 ms 161920 KB Output is correct
14 Correct 131 ms 158684 KB Output is correct
15 Correct 193 ms 164512 KB Output is correct
16 Correct 226 ms 169040 KB Output is correct
17 Correct 193 ms 163776 KB Output is correct
18 Correct 658 ms 209500 KB Output is correct
19 Correct 208 ms 166528 KB Output is correct
20 Correct 39 ms 150096 KB Output is correct
21 Correct 36 ms 150172 KB Output is correct
22 Correct 36 ms 150260 KB Output is correct
23 Correct 41 ms 150100 KB Output is correct
24 Correct 36 ms 150108 KB Output is correct
25 Correct 37 ms 150236 KB Output is correct
26 Correct 38 ms 150096 KB Output is correct
27 Correct 37 ms 150252 KB Output is correct
28 Correct 38 ms 150108 KB Output is correct
29 Correct 36 ms 150244 KB Output is correct
30 Correct 37 ms 150108 KB Output is correct
31 Correct 38 ms 150292 KB Output is correct
32 Correct 38 ms 150264 KB Output is correct
33 Correct 39 ms 150412 KB Output is correct
34 Correct 42 ms 150512 KB Output is correct
35 Correct 40 ms 150356 KB Output is correct
36 Correct 38 ms 150356 KB Output is correct
37 Correct 38 ms 150364 KB Output is correct
38 Correct 39 ms 150252 KB Output is correct
39 Correct 38 ms 150352 KB Output is correct
40 Correct 37 ms 150356 KB Output is correct
41 Correct 40 ms 150284 KB Output is correct
42 Correct 40 ms 150252 KB Output is correct
43 Correct 45 ms 150364 KB Output is correct
44 Correct 36 ms 150100 KB Output is correct
45 Correct 62 ms 152400 KB Output is correct
46 Correct 56 ms 151892 KB Output is correct
47 Correct 97 ms 154980 KB Output is correct
48 Correct 95 ms 155600 KB Output is correct
49 Correct 94 ms 156024 KB Output is correct
50 Correct 57 ms 152056 KB Output is correct
51 Correct 63 ms 152144 KB Output is correct
52 Correct 118 ms 158128 KB Output is correct
53 Correct 51 ms 151792 KB Output is correct
54 Correct 38 ms 150108 KB Output is correct
55 Correct 36 ms 150108 KB Output is correct
56 Correct 36 ms 150108 KB Output is correct
57 Correct 36 ms 150100 KB Output is correct
58 Correct 35 ms 150356 KB Output is correct
59 Correct 35 ms 150100 KB Output is correct
60 Correct 36 ms 150096 KB Output is correct
61 Correct 36 ms 150096 KB Output is correct
62 Correct 35 ms 150100 KB Output is correct
63 Correct 35 ms 150096 KB Output is correct
64 Correct 35 ms 150096 KB Output is correct
65 Correct 38 ms 150228 KB Output is correct
66 Correct 36 ms 150352 KB Output is correct
67 Correct 38 ms 150356 KB Output is correct
68 Correct 37 ms 150356 KB Output is correct
69 Correct 38 ms 150364 KB Output is correct
70 Correct 37 ms 150240 KB Output is correct
71 Correct 37 ms 150312 KB Output is correct
72 Correct 37 ms 150356 KB Output is correct
73 Correct 43 ms 150352 KB Output is correct
74 Correct 36 ms 150380 KB Output is correct
75 Correct 37 ms 150248 KB Output is correct
76 Correct 37 ms 150352 KB Output is correct
77 Correct 39 ms 150356 KB Output is correct
78 Correct 35 ms 150268 KB Output is correct
79 Correct 59 ms 152480 KB Output is correct
80 Correct 63 ms 152064 KB Output is correct
81 Correct 89 ms 154964 KB Output is correct
82 Correct 95 ms 155792 KB Output is correct
83 Correct 100 ms 156092 KB Output is correct
84 Correct 57 ms 152144 KB Output is correct
85 Correct 55 ms 152148 KB Output is correct
86 Correct 123 ms 158004 KB Output is correct
87 Correct 51 ms 151736 KB Output is correct
88 Correct 62 ms 152148 KB Output is correct
89 Correct 74 ms 152648 KB Output is correct
90 Correct 67 ms 152148 KB Output is correct
91 Correct 88 ms 154704 KB Output is correct
92 Correct 74 ms 152920 KB Output is correct
93 Correct 100 ms 156240 KB Output is correct
94 Correct 77 ms 153168 KB Output is correct
95 Correct 63 ms 151936 KB Output is correct
96 Correct 107 ms 156644 KB Output is correct
97 Correct 128 ms 158972 KB Output is correct
98 Correct 102 ms 156588 KB Output is correct
99 Correct 37 ms 150108 KB Output is correct
100 Correct 36 ms 150096 KB Output is correct
101 Correct 37 ms 150100 KB Output is correct
102 Correct 35 ms 150108 KB Output is correct
103 Correct 39 ms 150296 KB Output is correct
104 Correct 37 ms 150076 KB Output is correct
105 Correct 37 ms 150096 KB Output is correct
106 Correct 37 ms 150308 KB Output is correct
107 Correct 36 ms 150108 KB Output is correct
108 Correct 36 ms 150092 KB Output is correct
109 Correct 37 ms 150096 KB Output is correct
110 Correct 35 ms 150108 KB Output is correct
111 Correct 164 ms 161912 KB Output is correct
112 Correct 132 ms 158884 KB Output is correct
113 Correct 194 ms 164428 KB Output is correct
114 Correct 227 ms 169104 KB Output is correct
115 Correct 187 ms 163776 KB Output is correct
116 Correct 653 ms 209572 KB Output is correct
117 Correct 205 ms 166708 KB Output is correct
118 Correct 37 ms 150356 KB Output is correct
119 Correct 38 ms 150356 KB Output is correct
120 Correct 37 ms 150360 KB Output is correct
121 Correct 37 ms 150292 KB Output is correct
122 Correct 38 ms 150196 KB Output is correct
123 Correct 36 ms 150364 KB Output is correct
124 Correct 40 ms 150356 KB Output is correct
125 Correct 42 ms 150352 KB Output is correct
126 Correct 37 ms 150364 KB Output is correct
127 Correct 37 ms 150352 KB Output is correct
128 Correct 37 ms 150264 KB Output is correct
129 Correct 37 ms 150352 KB Output is correct
130 Correct 38 ms 150352 KB Output is correct
131 Correct 36 ms 150108 KB Output is correct
132 Correct 59 ms 152404 KB Output is correct
133 Correct 55 ms 151888 KB Output is correct
134 Correct 89 ms 154964 KB Output is correct
135 Correct 96 ms 155784 KB Output is correct
136 Correct 96 ms 155920 KB Output is correct
137 Correct 58 ms 152152 KB Output is correct
138 Correct 56 ms 152148 KB Output is correct
139 Correct 120 ms 158072 KB Output is correct
140 Correct 57 ms 151636 KB Output is correct
141 Correct 60 ms 152108 KB Output is correct
142 Correct 73 ms 152640 KB Output is correct
143 Correct 64 ms 152192 KB Output is correct
144 Correct 88 ms 154588 KB Output is correct
145 Correct 74 ms 152916 KB Output is correct
146 Correct 100 ms 156208 KB Output is correct
147 Correct 77 ms 153168 KB Output is correct
148 Correct 68 ms 151824 KB Output is correct
149 Correct 104 ms 156500 KB Output is correct
150 Correct 122 ms 158968 KB Output is correct
151 Correct 102 ms 156580 KB Output is correct
152 Correct 569 ms 203020 KB Output is correct
153 Correct 610 ms 207024 KB Output is correct
154 Correct 530 ms 199252 KB Output is correct
155 Correct 1292 ms 258768 KB Output is correct
156 Correct 1077 ms 233108 KB Output is correct
157 Correct 418 ms 187356 KB Output is correct
158 Correct 743 ms 213892 KB Output is correct
159 Execution timed out 2054 ms 365412 KB Time limit exceeded
160 Halted 0 ms 0 KB -