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Submission #970227

# Submission time Handle Problem Language Result Execution time Memory
970227 2024-04-26T08:42:01 Z amirhoseinfar1385 The short shank; Redemption (BOI21_prison) C++17
80 / 100
 2000 ms 362584 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 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 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 81 ms 148308 KB Output is correct
2 Correct 37 ms 148240 KB Output is correct
3 Correct 38 ms 148316 KB Output is correct
4 Correct 37 ms 148200 KB Output is correct
5 Correct 38 ms 148316 KB Output is correct
6 Correct 36 ms 148308 KB Output is correct
7 Correct 35 ms 148212 KB Output is correct
8 Correct 37 ms 148216 KB Output is correct
9 Correct 36 ms 148316 KB Output is correct
10 Correct 37 ms 148304 KB Output is correct
11 Correct 38 ms 148168 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 148304 KB Output is correct
2 Correct 170 ms 159828 KB Output is correct
3 Correct 136 ms 156652 KB Output is correct
4 Correct 192 ms 162380 KB Output is correct
5 Correct 244 ms 166992 KB Output is correct
6 Correct 191 ms 161960 KB Output is correct
7 Correct 673 ms 207388 KB Output is correct
8 Correct 209 ms 164656 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 148308 KB Output is correct
2 Correct 37 ms 148240 KB Output is correct
3 Correct 38 ms 148316 KB Output is correct
4 Correct 37 ms 148200 KB Output is correct
5 Correct 38 ms 148316 KB Output is correct
6 Correct 36 ms 148308 KB Output is correct
7 Correct 35 ms 148212 KB Output is correct
8 Correct 37 ms 148216 KB Output is correct
9 Correct 36 ms 148316 KB Output is correct
10 Correct 37 ms 148304 KB Output is correct
11 Correct 38 ms 148168 KB Output is correct
12 Correct 36 ms 148308 KB Output is correct
13 Correct 36 ms 148304 KB Output is correct
14 Correct 35 ms 148316 KB Output is correct
15 Correct 39 ms 148316 KB Output is correct
16 Correct 37 ms 148308 KB Output is correct
17 Correct 37 ms 148304 KB Output is correct
18 Correct 35 ms 148304 KB Output is correct
19 Correct 36 ms 148168 KB Output is correct
20 Correct 40 ms 148308 KB Output is correct
21 Correct 36 ms 148312 KB Output is correct
22 Correct 37 ms 148308 KB Output is correct
23 Correct 40 ms 148328 KB Output is correct
24 Correct 37 ms 148308 KB Output is correct
25 Correct 38 ms 148304 KB Output is correct
26 Correct 37 ms 148304 KB Output is correct
27 Correct 38 ms 148312 KB Output is correct
28 Correct 39 ms 148308 KB Output is correct
29 Correct 37 ms 148304 KB Output is correct
30 Correct 38 ms 148308 KB Output is correct
31 Correct 39 ms 148204 KB Output is correct
32 Correct 36 ms 148316 KB Output is correct
33 Correct 37 ms 148264 KB Output is correct
34 Correct 38 ms 148308 KB Output is correct
35 Correct 38 ms 148308 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 148252 KB Output is correct
2 Correct 60 ms 150356 KB Output is correct
3 Correct 56 ms 149976 KB Output is correct
4 Correct 90 ms 152916 KB Output is correct
5 Correct 102 ms 153772 KB Output is correct
6 Correct 98 ms 153884 KB Output is correct
7 Correct 59 ms 150132 KB Output is correct
8 Correct 60 ms 150140 KB Output is correct
9 Correct 119 ms 156172 KB Output is correct
10 Correct 51 ms 149600 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 148308 KB Output is correct
2 Correct 37 ms 148240 KB Output is correct
3 Correct 38 ms 148316 KB Output is correct
4 Correct 37 ms 148200 KB Output is correct
5 Correct 38 ms 148316 KB Output is correct
6 Correct 36 ms 148308 KB Output is correct
7 Correct 35 ms 148212 KB Output is correct
8 Correct 37 ms 148216 KB Output is correct
9 Correct 36 ms 148316 KB Output is correct
10 Correct 37 ms 148304 KB Output is correct
11 Correct 38 ms 148168 KB Output is correct
12 Correct 36 ms 148308 KB Output is correct
13 Correct 36 ms 148304 KB Output is correct
14 Correct 35 ms 148316 KB Output is correct
15 Correct 39 ms 148316 KB Output is correct
16 Correct 37 ms 148308 KB Output is correct
17 Correct 37 ms 148304 KB Output is correct
18 Correct 35 ms 148304 KB Output is correct
19 Correct 36 ms 148168 KB Output is correct
20 Correct 40 ms 148308 KB Output is correct
21 Correct 36 ms 148312 KB Output is correct
22 Correct 37 ms 148308 KB Output is correct
23 Correct 40 ms 148328 KB Output is correct
24 Correct 37 ms 148308 KB Output is correct
25 Correct 38 ms 148304 KB Output is correct
26 Correct 37 ms 148304 KB Output is correct
27 Correct 38 ms 148312 KB Output is correct
28 Correct 39 ms 148308 KB Output is correct
29 Correct 37 ms 148304 KB Output is correct
30 Correct 38 ms 148308 KB Output is correct
31 Correct 39 ms 148204 KB Output is correct
32 Correct 36 ms 148316 KB Output is correct
33 Correct 37 ms 148264 KB Output is correct
34 Correct 38 ms 148308 KB Output is correct
35 Correct 38 ms 148308 KB Output is correct
36 Correct 36 ms 148252 KB Output is correct
37 Correct 60 ms 150356 KB Output is correct
38 Correct 56 ms 149976 KB Output is correct
39 Correct 90 ms 152916 KB Output is correct
40 Correct 102 ms 153772 KB Output is correct
41 Correct 98 ms 153884 KB Output is correct
42 Correct 59 ms 150132 KB Output is correct
43 Correct 60 ms 150140 KB Output is correct
44 Correct 119 ms 156172 KB Output is correct
45 Correct 51 ms 149600 KB Output is correct
46 Correct 36 ms 148312 KB Output is correct
47 Correct 35 ms 148220 KB Output is correct
48 Correct 36 ms 148316 KB Output is correct
49 Correct 37 ms 148312 KB Output is correct
50 Correct 37 ms 148312 KB Output is correct
51 Correct 37 ms 148304 KB Output is correct
52 Correct 37 ms 148308 KB Output is correct
53 Correct 35 ms 148308 KB Output is correct
54 Correct 36 ms 148316 KB Output is correct
55 Correct 36 ms 148308 KB Output is correct
56 Correct 35 ms 148316 KB Output is correct
57 Correct 38 ms 148668 KB Output is correct
58 Correct 36 ms 148312 KB Output is correct
59 Correct 38 ms 148316 KB Output is correct
60 Correct 37 ms 148308 KB Output is correct
61 Correct 37 ms 148308 KB Output is correct
62 Correct 36 ms 148256 KB Output is correct
63 Correct 37 ms 148308 KB Output is correct
64 Correct 36 ms 148312 KB Output is correct
65 Correct 36 ms 148312 KB Output is correct
66 Correct 37 ms 148316 KB Output is correct
67 Correct 35 ms 148204 KB Output is correct
68 Correct 36 ms 148316 KB Output is correct
69 Correct 37 ms 148304 KB Output is correct
70 Correct 36 ms 148304 KB Output is correct
71 Correct 60 ms 150312 KB Output is correct
72 Correct 54 ms 149840 KB Output is correct
73 Correct 90 ms 152912 KB Output is correct
74 Correct 98 ms 153844 KB Output is correct
75 Correct 95 ms 153808 KB Output is correct
76 Correct 57 ms 150160 KB Output is correct
77 Correct 56 ms 150348 KB Output is correct
78 Correct 119 ms 156232 KB Output is correct
79 Correct 50 ms 149592 KB Output is correct
80 Correct 61 ms 150136 KB Output is correct
81 Correct 71 ms 150516 KB Output is correct
82 Correct 66 ms 150096 KB Output is correct
83 Correct 88 ms 152656 KB Output is correct
84 Correct 74 ms 150868 KB Output is correct
85 Correct 103 ms 154376 KB Output is correct
86 Correct 78 ms 151056 KB Output is correct
87 Correct 65 ms 149772 KB Output is correct
88 Correct 107 ms 154584 KB Output is correct
89 Correct 126 ms 157076 KB Output is correct
90 Correct 104 ms 154548 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 148308 KB Output is correct
2 Correct 37 ms 148240 KB Output is correct
3 Correct 38 ms 148316 KB Output is correct
4 Correct 37 ms 148200 KB Output is correct
5 Correct 38 ms 148316 KB Output is correct
6 Correct 36 ms 148308 KB Output is correct
7 Correct 35 ms 148212 KB Output is correct
8 Correct 37 ms 148216 KB Output is correct
9 Correct 36 ms 148316 KB Output is correct
10 Correct 37 ms 148304 KB Output is correct
11 Correct 38 ms 148168 KB Output is correct
12 Correct 37 ms 148304 KB Output is correct
13 Correct 170 ms 159828 KB Output is correct
14 Correct 136 ms 156652 KB Output is correct
15 Correct 192 ms 162380 KB Output is correct
16 Correct 244 ms 166992 KB Output is correct
17 Correct 191 ms 161960 KB Output is correct
18 Correct 673 ms 207388 KB Output is correct
19 Correct 209 ms 164656 KB Output is correct
20 Correct 36 ms 148308 KB Output is correct
21 Correct 36 ms 148304 KB Output is correct
22 Correct 35 ms 148316 KB Output is correct
23 Correct 39 ms 148316 KB Output is correct
24 Correct 37 ms 148308 KB Output is correct
25 Correct 37 ms 148304 KB Output is correct
26 Correct 35 ms 148304 KB Output is correct
27 Correct 36 ms 148168 KB Output is correct
28 Correct 40 ms 148308 KB Output is correct
29 Correct 36 ms 148312 KB Output is correct
30 Correct 37 ms 148308 KB Output is correct
31 Correct 40 ms 148328 KB Output is correct
32 Correct 37 ms 148308 KB Output is correct
33 Correct 38 ms 148304 KB Output is correct
34 Correct 37 ms 148304 KB Output is correct
35 Correct 38 ms 148312 KB Output is correct
36 Correct 39 ms 148308 KB Output is correct
37 Correct 37 ms 148304 KB Output is correct
38 Correct 38 ms 148308 KB Output is correct
39 Correct 39 ms 148204 KB Output is correct
40 Correct 36 ms 148316 KB Output is correct
41 Correct 37 ms 148264 KB Output is correct
42 Correct 38 ms 148308 KB Output is correct
43 Correct 38 ms 148308 KB Output is correct
44 Correct 36 ms 148252 KB Output is correct
45 Correct 60 ms 150356 KB Output is correct
46 Correct 56 ms 149976 KB Output is correct
47 Correct 90 ms 152916 KB Output is correct
48 Correct 102 ms 153772 KB Output is correct
49 Correct 98 ms 153884 KB Output is correct
50 Correct 59 ms 150132 KB Output is correct
51 Correct 60 ms 150140 KB Output is correct
52 Correct 119 ms 156172 KB Output is correct
53 Correct 51 ms 149600 KB Output is correct
54 Correct 36 ms 148312 KB Output is correct
55 Correct 35 ms 148220 KB Output is correct
56 Correct 36 ms 148316 KB Output is correct
57 Correct 37 ms 148312 KB Output is correct
58 Correct 37 ms 148312 KB Output is correct
59 Correct 37 ms 148304 KB Output is correct
60 Correct 37 ms 148308 KB Output is correct
61 Correct 35 ms 148308 KB Output is correct
62 Correct 36 ms 148316 KB Output is correct
63 Correct 36 ms 148308 KB Output is correct
64 Correct 35 ms 148316 KB Output is correct
65 Correct 38 ms 148668 KB Output is correct
66 Correct 36 ms 148312 KB Output is correct
67 Correct 38 ms 148316 KB Output is correct
68 Correct 37 ms 148308 KB Output is correct
69 Correct 37 ms 148308 KB Output is correct
70 Correct 36 ms 148256 KB Output is correct
71 Correct 37 ms 148308 KB Output is correct
72 Correct 36 ms 148312 KB Output is correct
73 Correct 36 ms 148312 KB Output is correct
74 Correct 37 ms 148316 KB Output is correct
75 Correct 35 ms 148204 KB Output is correct
76 Correct 36 ms 148316 KB Output is correct
77 Correct 37 ms 148304 KB Output is correct
78 Correct 36 ms 148304 KB Output is correct
79 Correct 60 ms 150312 KB Output is correct
80 Correct 54 ms 149840 KB Output is correct
81 Correct 90 ms 152912 KB Output is correct
82 Correct 98 ms 153844 KB Output is correct
83 Correct 95 ms 153808 KB Output is correct
84 Correct 57 ms 150160 KB Output is correct
85 Correct 56 ms 150348 KB Output is correct
86 Correct 119 ms 156232 KB Output is correct
87 Correct 50 ms 149592 KB Output is correct
88 Correct 61 ms 150136 KB Output is correct
89 Correct 71 ms 150516 KB Output is correct
90 Correct 66 ms 150096 KB Output is correct
91 Correct 88 ms 152656 KB Output is correct
92 Correct 74 ms 150868 KB Output is correct
93 Correct 103 ms 154376 KB Output is correct
94 Correct 78 ms 151056 KB Output is correct
95 Correct 65 ms 149772 KB Output is correct
96 Correct 107 ms 154584 KB Output is correct
97 Correct 126 ms 157076 KB Output is correct
98 Correct 104 ms 154548 KB Output is correct
99 Correct 35 ms 148312 KB Output is correct
100 Correct 35 ms 148316 KB Output is correct
101 Correct 35 ms 148168 KB Output is correct
102 Correct 36 ms 148204 KB Output is correct
103 Correct 35 ms 148220 KB Output is correct
104 Correct 35 ms 148308 KB Output is correct
105 Correct 37 ms 148428 KB Output is correct
106 Correct 35 ms 148308 KB Output is correct
107 Correct 37 ms 148236 KB Output is correct
108 Correct 37 ms 148308 KB Output is correct
109 Correct 36 ms 148308 KB Output is correct
110 Correct 36 ms 148316 KB Output is correct
111 Correct 166 ms 160080 KB Output is correct
112 Correct 134 ms 156756 KB Output is correct
113 Correct 197 ms 162444 KB Output is correct
114 Correct 241 ms 167320 KB Output is correct
115 Correct 183 ms 161820 KB Output is correct
116 Correct 680 ms 207624 KB Output is correct
117 Correct 211 ms 164660 KB Output is correct
118 Correct 38 ms 148316 KB Output is correct
119 Correct 38 ms 148316 KB Output is correct
120 Correct 38 ms 148308 KB Output is correct
121 Correct 38 ms 148268 KB Output is correct
122 Correct 38 ms 148424 KB Output is correct
123 Correct 37 ms 148316 KB Output is correct
124 Correct 38 ms 148304 KB Output is correct
125 Correct 37 ms 148308 KB Output is correct
126 Correct 37 ms 148308 KB Output is correct
127 Correct 37 ms 148308 KB Output is correct
128 Correct 38 ms 148308 KB Output is correct
129 Correct 38 ms 148304 KB Output is correct
130 Correct 39 ms 148472 KB Output is correct
131 Correct 37 ms 148352 KB Output is correct
132 Correct 59 ms 150356 KB Output is correct
133 Correct 60 ms 149840 KB Output is correct
134 Correct 90 ms 152912 KB Output is correct
135 Correct 105 ms 153804 KB Output is correct
136 Correct 101 ms 153804 KB Output is correct
137 Correct 57 ms 150100 KB Output is correct
138 Correct 55 ms 149988 KB Output is correct
139 Correct 119 ms 156076 KB Output is correct
140 Correct 51 ms 149796 KB Output is correct
141 Correct 65 ms 150096 KB Output is correct
142 Correct 73 ms 150440 KB Output is correct
143 Correct 68 ms 150100 KB Output is correct
144 Correct 88 ms 152836 KB Output is correct
145 Correct 74 ms 150748 KB Output is correct
146 Correct 103 ms 154192 KB Output is correct
147 Correct 81 ms 151120 KB Output is correct
148 Correct 62 ms 149716 KB Output is correct
149 Correct 109 ms 154540 KB Output is correct
150 Correct 130 ms 157060 KB Output is correct
151 Correct 104 ms 154544 KB Output is correct
152 Correct 572 ms 198736 KB Output is correct
153 Correct 618 ms 202936 KB Output is correct
154 Correct 541 ms 195576 KB Output is correct
155 Correct 1361 ms 256988 KB Output is correct
156 Correct 1085 ms 229024 KB Output is correct
157 Correct 450 ms 183820 KB Output is correct
158 Correct 765 ms 210468 KB Output is correct
159 Execution timed out 2077 ms 362584 KB Time limit exceeded
160 Halted 0 ms 0 KB -