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Submission #978597

# Submission time Handle Problem Language Result Execution time Memory
978597 2024-05-09T11:14:19 Z parlimoos Two Antennas (JOI19_antennas) C++14
13 / 100
 722 ms 524288 KB 
//Be Name KHODA
#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef long double ld;
#define pb push_back
#define pp pop_back
#define lb lower_bound
#define ub upper_bound
#define cl clear
#define bg begin
#define arr(x) array<int , x>
#define endl '\n'
 
const int root = 8000;
const int inroot = 200000 / root;
const int lg = int(log2(root)) + 1;
 
int n , q , o[200000];
vector<arr(3)> a;
vector<arr(2)> ops[200000];
vector<int> adds[200000] , dls[200000];
int sqrinf[inroot][2] , sqr[inroot][3];
int sqrprs[inroot][200000][lg][2][2];
bool lst[200000];
int trn , vls[200000];
 
void setMin(int &a , int b){
	a = min(a , b);
}
void setMax(int &a , int b){
	a = max(a , b);
}
void initSqr(){
	fill(&vls[0] , &vls[n] , -1);
	for(int i = 0 ; i < 200000 ; i += root){
		sqrinf[i / root][0] = i;
		sqrinf[i / root][1] = i + root - 1;
	}
	for(int i = 0 ; i < inroot ; i++){
		for(int j = 0 ; j < n ; j++){
			for(int bit = 0 ; bit < lg ; bit++){
				for(int arw = 0 ; arw < 2 ; arw++){
					sqrprs[i][j][bit][arw][0] = int(2e9);
					sqrprs[i][j][bit][arw][1] = -1;
				}
			}
		}
	}
	for(int i = 0 ; i < n ; i++){
		if(a[i][1] > i) continue;
		int l = max(0 , i - a[i][2]) , r = i - a[i][1];
		for(int sq = 0 ; sq < inroot ; sq++){
			if(sqrinf[sq][0] < l) continue;
			if(sqrinf[sq][1] > r) break;
			for(int arw = 0 ; arw < 2 ; arw++){
				setMin(sqrprs[sq][i][0][arw][0] , a[i][0]);
				setMax(sqrprs[sq][i][0][arw][1] , a[i][0]);
			}
		}
	}
	for(int sq = 0 ; sq < inroot ; sq++){
		for(int i = 0 ; i < n ; i++){
			for(int el = 1 , bit = 1 ; bit < lg and el <= i ; bit++ , el += el){
				sqrprs[sq][i][bit][0][0] = sqrprs[sq][i][bit - 1][0][0];
				setMin(sqrprs[sq][i][bit][0][0] , sqrprs[sq][i - el][bit - 1][0][0]);
				sqrprs[sq][i][bit][0][1] = sqrprs[sq][i][bit - 1][0][1];
				setMax(sqrprs[sq][i][bit][0][1] , sqrprs[sq][i - el][bit - 1][0][1]);
			}
		}
		for(int i = n - 1 ; i >= 0 ; i--){
			for(int el = 1 , bit = 1 ; bit < lg and i + el <= n - 1 ; bit++ , el += el){
				sqrprs[sq][i][bit][1][0] = sqrprs[sq][i][bit - 1][1][0];
				setMin(sqrprs[sq][i][bit][1][0] , sqrprs[sq][i + el][bit - 1][1][0]);
				sqrprs[sq][i][bit][1][1] = sqrprs[sq][i][bit - 1][1][1];
				setMax(sqrprs[sq][i][bit][1][1] , sqrprs[sq][i + el][bit - 1][1][1]);
			}
		}
	}
}
int getMin(int sq , int l , int r){
	int bit = int(log2(r - l + 1));
	return min(sqrprs[sq][r][bit][0][0] , sqrprs[sq][l][bit][1][0]);
}
int getMax(int sq , int l , int r){
	int bit = int(log2(r - l + 1));
	return max(sqrprs[sq][r][bit][0][1] , sqrprs[sq][l][bit][1][1]);
}
void delSqr(int i){
	int sq = i / root;
	lst[i] = 0 , sqr[sq][1] = int(2e9) , sqr[sq][2] = -1;
	int d1 = getMin(sq , i + a[i][1] , i + a[i][2]);
	int d2 = getMax(sq , i + a[i][1] , i + a[i][2]);
	setMax(vls[i] , max(a[i][0] - d1 , d2 - a[i][0]));
	for(int j = sqrinf[sq][0] ; j <= sqrinf[sq][1] ; j++){
		if(!lst[j]) continue;
		setMin(sqr[sq][1] , a[j][0]) , setMax(sqr[sq][2] , a[j][0]);;
	}
}
void addSqr(int i){
	int sq = i / root;
	lst[i] = 1;
	setMin(sqr[sq][1] , a[i][0]) , setMax(sqr[sq][2] , a[i][0]);
}
void updSqr(int l , int r , int val){
	for(int sq = 0 ; sq < inroot ; sq++){
		if(sqrinf[sq][0] > r) break;
		if(sqrinf[sq][1] < l) continue;
		if(sqrinf[sq][0] >= l and sqrinf[sq][1] <= r){
			int d = max(val - sqr[sq][1] , sqr[sq][2] - val);
			setMax(sqr[sq][0] , d);
		}else{
			for(int i = max(l , sqrinf[sq][0]) ; i <= min(r , sqrinf[sq][1]) ; i++){
				if(!lst[i]) continue;
				setMax(vls[i] , abs(val - a[i][0])) , setMax(sqr[sq][0] , vls[i]);
			}
		}
	}
}
int getSqr(int l , int r){
	int res = -1;
	for(int sq = 0 ; sq < inroot ; sq++){
		if(sqrinf[sq][0] > r) break;
		if(sqrinf[sq][1] < l) continue;
		if(sqrinf[sq][0] >= l and sqrinf[sq][1] <= r) setMax(res , sqr[sq][0]);
		else{
			for(int i = max(l , sqrinf[sq][0]) ; i <= min(r , sqrinf[sq][1]) ; i++){
				if(!lst[i]){
					setMax(res , vls[i]);
					continue;
				}
				int d1 = getMin(sq , i + a[i][1] , min(i + a[i][2] , trn));
				int d2 = getMax(sq , i + a[i][1] , min(i + a[i][2] , trn));
				setMax(res , max({a[i][0] - d1 , d2 - a[i][0] , vls[i]}));
			}
		}
	}
	return res;
}
void f(){
	for(trn = 0 ; trn < n ; trn++){
		for(int &el : adds[trn]) addSqr(el);
		if(trn >= a[trn][1]) updSqr(max(0 , trn - a[trn][2]) , trn - a[trn][1] , a[trn][0]);
		for(auto op : ops[trn]){
			o[op[1]] = getSqr(op[0] , trn);
		}
		for(int &el : dls[trn]) delSqr(el);
	}
}
 
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n;
	for(int i = 0 ; i < n ; i++){
		a.pb({0 , 0 , 0});
		cin >> a.back()[0] >> a.back()[1] >> a.back()[2];
		if(i + a[i][1] < n){
			adds[i + a[i][1]].pb(i);
			if(i + a[i][2] < n - 1) dls[i + a[i][2]].pb(i);
		}
	}
	cin >> q;
	for(int i = 0 ; i < q ; i++){
		int l , r;
		cin >> l >> r;
		ops[r - 1].pb({l - 1 , i});
	}
	initSqr();
	f();
	for(int i = 0 ; i < q ; i++) cout << o[i] << endl;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 66396 KB Output is correct
2 Correct 11 ms 66404 KB Output is correct
3 Correct 11 ms 66396 KB Output is correct
4 Correct 11 ms 66396 KB Output is correct
5 Correct 11 ms 66396 KB Output is correct
6 Correct 12 ms 66492 KB Output is correct
7 Correct 13 ms 66392 KB Output is correct
8 Correct 12 ms 66396 KB Output is correct
9 Correct 12 ms 66396 KB Output is correct
10 Correct 11 ms 66344 KB Output is correct
11 Correct 10 ms 66396 KB Output is correct
12 Correct 11 ms 66464 KB Output is correct
13 Correct 11 ms 66396 KB Output is correct
14 Correct 12 ms 66392 KB Output is correct
15 Correct 12 ms 66396 KB Output is correct
16 Correct 11 ms 66396 KB Output is correct
17 Correct 11 ms 66392 KB Output is correct
18 Correct 11 ms 66396 KB Output is correct
19 Correct 11 ms 66432 KB Output is correct
20 Correct 13 ms 66396 KB Output is correct
21 Correct 12 ms 66396 KB Output is correct
22 Correct 11 ms 66396 KB Output is correct
23 Correct 12 ms 66396 KB Output is correct
24 Correct 11 ms 66396 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 66396 KB Output is correct
2 Correct 11 ms 66404 KB Output is correct
3 Correct 11 ms 66396 KB Output is correct
4 Correct 11 ms 66396 KB Output is correct
5 Correct 11 ms 66396 KB Output is correct
6 Correct 12 ms 66492 KB Output is correct
7 Correct 13 ms 66392 KB Output is correct
8 Correct 12 ms 66396 KB Output is correct
9 Correct 12 ms 66396 KB Output is correct
10 Correct 11 ms 66344 KB Output is correct
11 Correct 10 ms 66396 KB Output is correct
12 Correct 11 ms 66464 KB Output is correct
13 Correct 11 ms 66396 KB Output is correct
14 Correct 12 ms 66392 KB Output is correct
15 Correct 12 ms 66396 KB Output is correct
16 Correct 11 ms 66396 KB Output is correct
17 Correct 11 ms 66392 KB Output is correct
18 Correct 11 ms 66396 KB Output is correct
19 Correct 11 ms 66432 KB Output is correct
20 Correct 13 ms 66396 KB Output is correct
21 Correct 12 ms 66396 KB Output is correct
22 Correct 11 ms 66396 KB Output is correct
23 Correct 12 ms 66396 KB Output is correct
24 Correct 11 ms 66396 KB Output is correct
25 Correct 242 ms 76108 KB Output is correct
26 Correct 76 ms 74956 KB Output is correct
27 Correct 564 ms 79556 KB Output is correct
28 Correct 670 ms 79556 KB Output is correct
29 Correct 283 ms 76100 KB Output is correct
30 Correct 466 ms 77908 KB Output is correct
31 Correct 134 ms 70772 KB Output is correct
32 Correct 683 ms 79560 KB Output is correct
33 Correct 435 ms 79412 KB Output is correct
34 Correct 341 ms 76880 KB Output is correct
35 Correct 510 ms 79520 KB Output is correct
36 Correct 722 ms 79564 KB Output is correct
37 Correct 109 ms 76884 KB Output is correct
38 Correct 609 ms 78784 KB Output is correct
39 Correct 106 ms 75180 KB Output is correct
40 Correct 398 ms 78736 KB Output is correct
41 Correct 347 ms 77608 KB Output is correct
42 Correct 677 ms 78640 KB Output is correct
43 Correct 87 ms 75964 KB Output is correct
44 Correct 329 ms 78776 KB Output is correct
45 Correct 46 ms 75348 KB Output is correct
46 Correct 338 ms 78768 KB Output is correct
47 Correct 94 ms 75604 KB Output is correct
48 Correct 430 ms 78788 KB Output is correct

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Runtime error 190 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 66396 KB Output is correct
2 Correct 11 ms 66404 KB Output is correct
3 Correct 11 ms 66396 KB Output is correct
4 Correct 11 ms 66396 KB Output is correct
5 Correct 11 ms 66396 KB Output is correct
6 Correct 12 ms 66492 KB Output is correct
7 Correct 13 ms 66392 KB Output is correct
8 Correct 12 ms 66396 KB Output is correct
9 Correct 12 ms 66396 KB Output is correct
10 Correct 11 ms 66344 KB Output is correct
11 Correct 10 ms 66396 KB Output is correct
12 Correct 11 ms 66464 KB Output is correct
13 Correct 11 ms 66396 KB Output is correct
14 Correct 12 ms 66392 KB Output is correct
15 Correct 12 ms 66396 KB Output is correct
16 Correct 11 ms 66396 KB Output is correct
17 Correct 11 ms 66392 KB Output is correct
18 Correct 11 ms 66396 KB Output is correct
19 Correct 11 ms 66432 KB Output is correct
20 Correct 13 ms 66396 KB Output is correct
21 Correct 12 ms 66396 KB Output is correct
22 Correct 11 ms 66396 KB Output is correct
23 Correct 12 ms 66396 KB Output is correct
24 Correct 11 ms 66396 KB Output is correct
25 Correct 242 ms 76108 KB Output is correct
26 Correct 76 ms 74956 KB Output is correct
27 Correct 564 ms 79556 KB Output is correct
28 Correct 670 ms 79556 KB Output is correct
29 Correct 283 ms 76100 KB Output is correct
30 Correct 466 ms 77908 KB Output is correct
31 Correct 134 ms 70772 KB Output is correct
32 Correct 683 ms 79560 KB Output is correct
33 Correct 435 ms 79412 KB Output is correct
34 Correct 341 ms 76880 KB Output is correct
35 Correct 510 ms 79520 KB Output is correct
36 Correct 722 ms 79564 KB Output is correct
37 Correct 109 ms 76884 KB Output is correct
38 Correct 609 ms 78784 KB Output is correct
39 Correct 106 ms 75180 KB Output is correct
40 Correct 398 ms 78736 KB Output is correct
41 Correct 347 ms 77608 KB Output is correct
42 Correct 677 ms 78640 KB Output is correct
43 Correct 87 ms 75964 KB Output is correct
44 Correct 329 ms 78776 KB Output is correct
45 Correct 46 ms 75348 KB Output is correct
46 Correct 338 ms 78768 KB Output is correct
47 Correct 94 ms 75604 KB Output is correct
48 Correct 430 ms 78788 KB Output is correct
49 Runtime error 190 ms 524288 KB Execution killed with signal 9
50 Halted 0 ms 0 KB -