oj.uz

Submission #114055

# Submission time Handle Problem Language Result Execution time Memory
114055 2019-05-29T17:48:10 Z sebinkim Iqea (innopolis2018_final_C) C++14
36 / 100
 2000 ms 28700 KB 
#include <bits/stdc++.h>

using namespace std;

typedef pair <int, int> pii;

struct point{
	int x, y, i;
	point() {}
	point(int x, int y, int i) : x(x), y(y), i(i) {}
};

const int sz = 60;

vector <point> P;
vector <pii> K;
queue <pii> Q;
vector <int> T[202020], V[101010];
int U[20][202020], W[202020];
int X[101010], Y[101010], D[101010];
bool chk[101010];
int n, k;

void dfs(int p, int r)
{
	U[0][p] = r; W[p] = W[r] + 1;
	
	for(int &t: T[p]){
		if(t != r) dfs(t, p);
	}
}

int dist(int p, int q)
{
	int i, ret;
	
	ret = 0;
	
	if(W[p] < W[q]) swap(p, q);
	
	for(i=0; i<18; i++){
		if(W[p] - W[q] & (1 << i)){
			p = U[i][p];
			ret += 1 << i;
		}
	}
	
	if(p == q) return ret;
	
	for(i--; i>=0; i--){
		if(U[i][p] != U[i][q]){
			p = U[i][p]; q = U[i][q];
			ret += 2 << i;
		}
	}
	
	return ret + 2;
}

void bfs()
{
	int i, p, d;
	
	for(i=0; i<n; i++){
		chk[i] = 0;
	}
	
	for(pii &t: K){
		chk[t.first] = 1;
		Q.push(pii(t.first, 0));
	}
	
	K.clear();
	
	for(; !Q.empty(); ){
		tie(p, d) = Q.front(); Q.pop();
		D[p] = min(D[p], d);
		for(int &t: V[p]){
			if(!chk[t]){
				Q.push(pii(t, d + 1));
				chk[t] = 1;
			}
		}
	}
}

int query(int p)
{
	int ret;
	
	ret = D[p];
	
	for(pii &t: K){
		ret = min(ret, dist(X[p], X[t.first]) + dist(Y[p], Y[t.first]));
	}
	
	return ret < 1e9? ret : -1;
}

int main()
{
	int q, i, j, x, y, t;
	
	scanf("%d", &n);
	
	for(i=0; i<n; i++){
		scanf("%d%d", &x, &y);
		P.emplace_back(x, y, i);
		D[i] = 1e9;
	}
	
	sort(P.begin(), P.end(), [&](point &pa, point &pb){
		if(pa.x != pb.x) return pa.x < pb.x;
		else return pa.y < pb.y;
	});
	
	for(i=0; i<n; i=j){
		k ++;
		for(j=i; j<n && P[i].x == P[j].x && P[i].y == P[j].y - j + i; j++){
			X[P[j].i] = k;
		}
	}
	
	sort(P.begin(), P.end(), [&](point &pa, point &pb){
		if(pa.y != pb.y) return pa.y < pb.y;
		else return pa.x < pb.x;
	});
	
	for(i=0; i<n; i=j){
		k ++;
		for(j=i; j<n && P[i].y == P[j].y && P[i].x == P[j].x - j + i; j++){
			Y[P[j].i] = k;
		}
	}
	
	for(i=1; i<n; i++){
		if(P[i - 1].y == P[i].y && P[i - 1].x + 1 == P[i].x){
			T[X[P[i].i]].push_back(X[P[i - 1].i]);
			T[X[P[i - 1].i]].push_back(X[P[i].i]);
			V[P[i].i].push_back(P[i - 1].i);
			V[P[i - 1].i].push_back(P[i].i);
		}
	}
	
	sort(P.begin(), P.end(), [&](point &pa, point &pb){
		if(pa.x != pb.x) return pa.x < pb.x;
		else return pa.y < pb.y;
	});
	
	
	for(i=1; i<n; i++){
		if(P[i - 1].x == P[i].x && P[i - 1].y + 1 == P[i].y){
			T[Y[P[i].i]].push_back(Y[P[i - 1].i]);
			T[Y[P[i - 1].i]].push_back(Y[P[i].i]);
			V[P[i].i].push_back(P[i - 1].i);
			V[P[i - 1].i].push_back(P[i].i);
		}
	}
	
	for(i=1; i<=k; i++){
		sort(T[i].begin(), T[i].end());
		T[i].erase(unique(T[i].begin(), T[i].end()), T[i].end());
	}
	
	dfs(1, 0); dfs(k, 0);
	
	for(i=1; i<18; i++){
		for(j=1; j<=k; j++){
			U[i][j] = U[i - 1][U[i - 1][j]];
		}
	}
	
	scanf("%d", &q);
	
	for(; q--; ){
		scanf("%d%d%d", &t, &x, &y);
		i = lower_bound(P.begin(), P.end(), point(x, y, -1), [&](point pa, point pb){
			if(pa.x != pb.x) return pa.x < pb.x;
			else return pa.y < pb.y;
		}) -> i;
		
		if(t == 1) K.push_back(pii(i, 0));
		else printf("%d\n", query(i));
		
		if(K.size() > sz) bfs();
	}
	
	return 0;
}

Compilation message

C.cpp: In function 'int dist(int, int)':
C.cpp:42:11: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   if(W[p] - W[q] & (1 << i)){
      ~~~~~^~~~~~
C.cpp: In function 'int main()':
C.cpp:104:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
C.cpp:107:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &x, &y);
   ~~~~~^~~~~~~~~~~~~~~~
C.cpp:173:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &q);
  ~~~~~^~~~~~~~~~
C.cpp:176:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &t, &x, &y);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7524 KB Output is correct
2 Correct 8 ms 7552 KB Output is correct
3 Correct 8 ms 7524 KB Output is correct
4 Correct 28 ms 8060 KB Output is correct
5 Correct 28 ms 8012 KB Output is correct
6 Correct 29 ms 8036 KB Output is correct
7 Correct 35 ms 8396 KB Output is correct
8 Correct 36 ms 8492 KB Output is correct
9 Correct 34 ms 8448 KB Output is correct
10 Correct 38 ms 8368 KB Output is correct
11 Correct 36 ms 8448 KB Output is correct
12 Correct 35 ms 8616 KB Output is correct
13 Correct 37 ms 8516 KB Output is correct
14 Correct 39 ms 8500 KB Output is correct
15 Correct 37 ms 8448 KB Output is correct
16 Correct 38 ms 8456 KB Output is correct
17 Correct 35 ms 8532 KB Output is correct
18 Correct 36 ms 8320 KB Output is correct
19 Correct 35 ms 8384 KB Output is correct
20 Correct 37 ms 8492 KB Output is correct
21 Correct 35 ms 8500 KB Output is correct
22 Correct 35 ms 8524 KB Output is correct
23 Correct 33 ms 8568 KB Output is correct
24 Correct 34 ms 8632 KB Output is correct
25 Correct 28 ms 8680 KB Output is correct
26 Correct 29 ms 8548 KB Output is correct
27 Correct 28 ms 8676 KB Output is correct
28 Correct 30 ms 8528 KB Output is correct
29 Correct 31 ms 8576 KB Output is correct
30 Correct 30 ms 8540 KB Output is correct
31 Correct 30 ms 8576 KB Output is correct
32 Correct 35 ms 8620 KB Output is correct
33 Correct 34 ms 8528 KB Output is correct
34 Correct 33 ms 8528 KB Output is correct
35 Correct 35 ms 8636 KB Output is correct
36 Correct 27 ms 8652 KB Output is correct
37 Correct 32 ms 8620 KB Output is correct
38 Correct 30 ms 8548 KB Output is correct
39 Correct 30 ms 8576 KB Output is correct
40 Correct 31 ms 8576 KB Output is correct
41 Correct 31 ms 8532 KB Output is correct
42 Correct 32 ms 8512 KB Output is correct
43 Correct 29 ms 8584 KB Output is correct
44 Correct 32 ms 8576 KB Output is correct
45 Correct 32 ms 8568 KB Output is correct
46 Correct 29 ms 8668 KB Output is correct
47 Correct 38 ms 8292 KB Output is correct
48 Correct 34 ms 8192 KB Output is correct
49 Correct 34 ms 8244 KB Output is correct
50 Correct 35 ms 8192 KB Output is correct
51 Correct 33 ms 8064 KB Output is correct
52 Correct 39 ms 8320 KB Output is correct
53 Correct 31 ms 8320 KB Output is correct
54 Correct 32 ms 8320 KB Output is correct
55 Correct 35 ms 8320 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7524 KB Output is correct
2 Correct 8 ms 7552 KB Output is correct
3 Correct 8 ms 7524 KB Output is correct
4 Correct 28 ms 8060 KB Output is correct
5 Correct 28 ms 8012 KB Output is correct
6 Correct 29 ms 8036 KB Output is correct
7 Correct 35 ms 8396 KB Output is correct
8 Correct 36 ms 8492 KB Output is correct
9 Correct 34 ms 8448 KB Output is correct
10 Correct 38 ms 8368 KB Output is correct
11 Correct 36 ms 8448 KB Output is correct
12 Correct 35 ms 8616 KB Output is correct
13 Correct 37 ms 8516 KB Output is correct
14 Correct 39 ms 8500 KB Output is correct
15 Correct 37 ms 8448 KB Output is correct
16 Correct 38 ms 8456 KB Output is correct
17 Correct 35 ms 8532 KB Output is correct
18 Correct 36 ms 8320 KB Output is correct
19 Correct 35 ms 8384 KB Output is correct
20 Correct 37 ms 8492 KB Output is correct
21 Correct 35 ms 8500 KB Output is correct
22 Correct 35 ms 8524 KB Output is correct
23 Correct 33 ms 8568 KB Output is correct
24 Correct 34 ms 8632 KB Output is correct
25 Correct 28 ms 8680 KB Output is correct
26 Correct 29 ms 8548 KB Output is correct
27 Correct 28 ms 8676 KB Output is correct
28 Correct 30 ms 8528 KB Output is correct
29 Correct 31 ms 8576 KB Output is correct
30 Correct 30 ms 8540 KB Output is correct
31 Correct 30 ms 8576 KB Output is correct
32 Correct 35 ms 8620 KB Output is correct
33 Correct 34 ms 8528 KB Output is correct
34 Correct 33 ms 8528 KB Output is correct
35 Correct 35 ms 8636 KB Output is correct
36 Correct 27 ms 8652 KB Output is correct
37 Correct 32 ms 8620 KB Output is correct
38 Correct 30 ms 8548 KB Output is correct
39 Correct 30 ms 8576 KB Output is correct
40 Correct 31 ms 8576 KB Output is correct
41 Correct 31 ms 8532 KB Output is correct
42 Correct 32 ms 8512 KB Output is correct
43 Correct 29 ms 8584 KB Output is correct
44 Correct 32 ms 8576 KB Output is correct
45 Correct 32 ms 8568 KB Output is correct
46 Correct 29 ms 8668 KB Output is correct
47 Correct 38 ms 8292 KB Output is correct
48 Correct 34 ms 8192 KB Output is correct
49 Correct 34 ms 8244 KB Output is correct
50 Correct 35 ms 8192 KB Output is correct
51 Correct 33 ms 8064 KB Output is correct
52 Correct 39 ms 8320 KB Output is correct
53 Correct 31 ms 8320 KB Output is correct
54 Correct 32 ms 8320 KB Output is correct
55 Correct 35 ms 8320 KB Output is correct
56 Correct 471 ms 8360 KB Output is correct
57 Correct 457 ms 8280 KB Output is correct
58 Correct 472 ms 8416 KB Output is correct
59 Correct 711 ms 8756 KB Output is correct
60 Correct 750 ms 8692 KB Output is correct
61 Correct 753 ms 8836 KB Output is correct
62 Correct 725 ms 8740 KB Output is correct
63 Correct 792 ms 8860 KB Output is correct
64 Correct 781 ms 8900 KB Output is correct
65 Correct 743 ms 8952 KB Output is correct
66 Correct 733 ms 8948 KB Output is correct
67 Correct 724 ms 8908 KB Output is correct
68 Correct 678 ms 8668 KB Output is correct
69 Correct 693 ms 8720 KB Output is correct
70 Correct 727 ms 8872 KB Output is correct
71 Correct 707 ms 8788 KB Output is correct
72 Correct 739 ms 8952 KB Output is correct
73 Correct 716 ms 8984 KB Output is correct
74 Correct 423 ms 8932 KB Output is correct
75 Correct 486 ms 8952 KB Output is correct
76 Correct 441 ms 9120 KB Output is correct
77 Correct 505 ms 8900 KB Output is correct
78 Correct 517 ms 9108 KB Output is correct
79 Correct 442 ms 8988 KB Output is correct
80 Correct 534 ms 8952 KB Output is correct
81 Correct 565 ms 8952 KB Output is correct
82 Correct 548 ms 8864 KB Output is correct
83 Correct 543 ms 8956 KB Output is correct
84 Correct 433 ms 8952 KB Output is correct
85 Correct 559 ms 8968 KB Output is correct
86 Correct 558 ms 8964 KB Output is correct
87 Correct 433 ms 8824 KB Output is correct
88 Correct 756 ms 8712 KB Output is correct
89 Correct 637 ms 8568 KB Output is correct
90 Correct 601 ms 8440 KB Output is correct
91 Correct 590 ms 8568 KB Output is correct
92 Correct 571 ms 8328 KB Output is correct
93 Correct 569 ms 8652 KB Output is correct
94 Correct 564 ms 8696 KB Output is correct
95 Correct 599 ms 8580 KB Output is correct
96 Correct 592 ms 8708 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2074 ms 28700 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2041 ms 24088 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7524 KB Output is correct
2 Correct 8 ms 7552 KB Output is correct
3 Correct 8 ms 7524 KB Output is correct
4 Correct 28 ms 8060 KB Output is correct
5 Correct 28 ms 8012 KB Output is correct
6 Correct 29 ms 8036 KB Output is correct
7 Correct 35 ms 8396 KB Output is correct
8 Correct 36 ms 8492 KB Output is correct
9 Correct 34 ms 8448 KB Output is correct
10 Correct 38 ms 8368 KB Output is correct
11 Correct 36 ms 8448 KB Output is correct
12 Correct 35 ms 8616 KB Output is correct
13 Correct 37 ms 8516 KB Output is correct
14 Correct 39 ms 8500 KB Output is correct
15 Correct 37 ms 8448 KB Output is correct
16 Correct 38 ms 8456 KB Output is correct
17 Correct 35 ms 8532 KB Output is correct
18 Correct 36 ms 8320 KB Output is correct
19 Correct 35 ms 8384 KB Output is correct
20 Correct 37 ms 8492 KB Output is correct
21 Correct 35 ms 8500 KB Output is correct
22 Correct 35 ms 8524 KB Output is correct
23 Correct 33 ms 8568 KB Output is correct
24 Correct 34 ms 8632 KB Output is correct
25 Correct 28 ms 8680 KB Output is correct
26 Correct 29 ms 8548 KB Output is correct
27 Correct 28 ms 8676 KB Output is correct
28 Correct 30 ms 8528 KB Output is correct
29 Correct 31 ms 8576 KB Output is correct
30 Correct 30 ms 8540 KB Output is correct
31 Correct 30 ms 8576 KB Output is correct
32 Correct 35 ms 8620 KB Output is correct
33 Correct 34 ms 8528 KB Output is correct
34 Correct 33 ms 8528 KB Output is correct
35 Correct 35 ms 8636 KB Output is correct
36 Correct 27 ms 8652 KB Output is correct
37 Correct 32 ms 8620 KB Output is correct
38 Correct 30 ms 8548 KB Output is correct
39 Correct 30 ms 8576 KB Output is correct
40 Correct 31 ms 8576 KB Output is correct
41 Correct 31 ms 8532 KB Output is correct
42 Correct 32 ms 8512 KB Output is correct
43 Correct 29 ms 8584 KB Output is correct
44 Correct 32 ms 8576 KB Output is correct
45 Correct 32 ms 8568 KB Output is correct
46 Correct 29 ms 8668 KB Output is correct
47 Correct 38 ms 8292 KB Output is correct
48 Correct 34 ms 8192 KB Output is correct
49 Correct 34 ms 8244 KB Output is correct
50 Correct 35 ms 8192 KB Output is correct
51 Correct 33 ms 8064 KB Output is correct
52 Correct 39 ms 8320 KB Output is correct
53 Correct 31 ms 8320 KB Output is correct
54 Correct 32 ms 8320 KB Output is correct
55 Correct 35 ms 8320 KB Output is correct
56 Correct 471 ms 8360 KB Output is correct
57 Correct 457 ms 8280 KB Output is correct
58 Correct 472 ms 8416 KB Output is correct
59 Correct 711 ms 8756 KB Output is correct
60 Correct 750 ms 8692 KB Output is correct
61 Correct 753 ms 8836 KB Output is correct
62 Correct 725 ms 8740 KB Output is correct
63 Correct 792 ms 8860 KB Output is correct
64 Correct 781 ms 8900 KB Output is correct
65 Correct 743 ms 8952 KB Output is correct
66 Correct 733 ms 8948 KB Output is correct
67 Correct 724 ms 8908 KB Output is correct
68 Correct 678 ms 8668 KB Output is correct
69 Correct 693 ms 8720 KB Output is correct
70 Correct 727 ms 8872 KB Output is correct
71 Correct 707 ms 8788 KB Output is correct
72 Correct 739 ms 8952 KB Output is correct
73 Correct 716 ms 8984 KB Output is correct
74 Correct 423 ms 8932 KB Output is correct
75 Correct 486 ms 8952 KB Output is correct
76 Correct 441 ms 9120 KB Output is correct
77 Correct 505 ms 8900 KB Output is correct
78 Correct 517 ms 9108 KB Output is correct
79 Correct 442 ms 8988 KB Output is correct
80 Correct 534 ms 8952 KB Output is correct
81 Correct 565 ms 8952 KB Output is correct
82 Correct 548 ms 8864 KB Output is correct
83 Correct 543 ms 8956 KB Output is correct
84 Correct 433 ms 8952 KB Output is correct
85 Correct 559 ms 8968 KB Output is correct
86 Correct 558 ms 8964 KB Output is correct
87 Correct 433 ms 8824 KB Output is correct
88 Correct 756 ms 8712 KB Output is correct
89 Correct 637 ms 8568 KB Output is correct
90 Correct 601 ms 8440 KB Output is correct
91 Correct 590 ms 8568 KB Output is correct
92 Correct 571 ms 8328 KB Output is correct
93 Correct 569 ms 8652 KB Output is correct
94 Correct 564 ms 8696 KB Output is correct
95 Correct 599 ms 8580 KB Output is correct
96 Correct 592 ms 8708 KB Output is correct
97 Execution timed out 2074 ms 28700 KB Time limit exceeded
98 Halted 0 ms 0 KB -