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Submission #114054

# Submission time Handle Problem Language Result Execution time Memory
114054 2019-05-29T17:47:51 Z sebinkim Iqea (innopolis2018_final_C) C++14
36 / 100
 2000 ms 28652 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 = 40;

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 7552 KB Output is correct
2 Correct 8 ms 7552 KB Output is correct
3 Correct 8 ms 7616 KB Output is correct
4 Correct 29 ms 8056 KB Output is correct
5 Correct 29 ms 7936 KB Output is correct
6 Correct 29 ms 8192 KB Output is correct
7 Correct 33 ms 8372 KB Output is correct
8 Correct 33 ms 8440 KB Output is correct
9 Correct 38 ms 8448 KB Output is correct
10 Correct 37 ms 8320 KB Output is correct
11 Correct 36 ms 8320 KB Output is correct
12 Correct 35 ms 8436 KB Output is correct
13 Correct 36 ms 8440 KB Output is correct
14 Correct 37 ms 8372 KB Output is correct
15 Correct 36 ms 8448 KB Output is correct
16 Correct 36 ms 8320 KB Output is correct
17 Correct 33 ms 8320 KB Output is correct
18 Correct 33 ms 8320 KB Output is correct
19 Correct 33 ms 8320 KB Output is correct
20 Correct 34 ms 8320 KB Output is correct
21 Correct 36 ms 8424 KB Output is correct
22 Correct 36 ms 8472 KB Output is correct
23 Correct 33 ms 8448 KB Output is correct
24 Correct 34 ms 8696 KB Output is correct
25 Correct 27 ms 8564 KB Output is correct
26 Correct 29 ms 8448 KB Output is correct
27 Correct 27 ms 8576 KB Output is correct
28 Correct 29 ms 8448 KB Output is correct
29 Correct 30 ms 8448 KB Output is correct
30 Correct 29 ms 8576 KB Output is correct
31 Correct 28 ms 8448 KB Output is correct
32 Correct 32 ms 8580 KB Output is correct
33 Correct 32 ms 8448 KB Output is correct
34 Correct 31 ms 8516 KB Output is correct
35 Correct 33 ms 8668 KB Output is correct
36 Correct 25 ms 8648 KB Output is correct
37 Correct 29 ms 8448 KB Output is correct
38 Correct 29 ms 8448 KB Output is correct
39 Correct 29 ms 8576 KB Output is correct
40 Correct 30 ms 8576 KB Output is correct
41 Correct 30 ms 8448 KB Output is correct
42 Correct 29 ms 8368 KB Output is correct
43 Correct 28 ms 8696 KB Output is correct
44 Correct 30 ms 8448 KB Output is correct
45 Correct 30 ms 8448 KB Output is correct
46 Correct 29 ms 8696 KB Output is correct
47 Correct 35 ms 8192 KB Output is correct
48 Correct 32 ms 8064 KB Output is correct
49 Correct 32 ms 8148 KB Output is correct
50 Correct 34 ms 8064 KB Output is correct
51 Correct 30 ms 8104 KB Output is correct
52 Correct 31 ms 8192 KB Output is correct
53 Correct 31 ms 8192 KB Output is correct
54 Correct 31 ms 8192 KB Output is correct
55 Correct 31 ms 8192 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 7552 KB Output is correct
2 Correct 8 ms 7552 KB Output is correct
3 Correct 8 ms 7616 KB Output is correct
4 Correct 29 ms 8056 KB Output is correct
5 Correct 29 ms 7936 KB Output is correct
6 Correct 29 ms 8192 KB Output is correct
7 Correct 33 ms 8372 KB Output is correct
8 Correct 33 ms 8440 KB Output is correct
9 Correct 38 ms 8448 KB Output is correct
10 Correct 37 ms 8320 KB Output is correct
11 Correct 36 ms 8320 KB Output is correct
12 Correct 35 ms 8436 KB Output is correct
13 Correct 36 ms 8440 KB Output is correct
14 Correct 37 ms 8372 KB Output is correct
15 Correct 36 ms 8448 KB Output is correct
16 Correct 36 ms 8320 KB Output is correct
17 Correct 33 ms 8320 KB Output is correct
18 Correct 33 ms 8320 KB Output is correct
19 Correct 33 ms 8320 KB Output is correct
20 Correct 34 ms 8320 KB Output is correct
21 Correct 36 ms 8424 KB Output is correct
22 Correct 36 ms 8472 KB Output is correct
23 Correct 33 ms 8448 KB Output is correct
24 Correct 34 ms 8696 KB Output is correct
25 Correct 27 ms 8564 KB Output is correct
26 Correct 29 ms 8448 KB Output is correct
27 Correct 27 ms 8576 KB Output is correct
28 Correct 29 ms 8448 KB Output is correct
29 Correct 30 ms 8448 KB Output is correct
30 Correct 29 ms 8576 KB Output is correct
31 Correct 28 ms 8448 KB Output is correct
32 Correct 32 ms 8580 KB Output is correct
33 Correct 32 ms 8448 KB Output is correct
34 Correct 31 ms 8516 KB Output is correct
35 Correct 33 ms 8668 KB Output is correct
36 Correct 25 ms 8648 KB Output is correct
37 Correct 29 ms 8448 KB Output is correct
38 Correct 29 ms 8448 KB Output is correct
39 Correct 29 ms 8576 KB Output is correct
40 Correct 30 ms 8576 KB Output is correct
41 Correct 30 ms 8448 KB Output is correct
42 Correct 29 ms 8368 KB Output is correct
43 Correct 28 ms 8696 KB Output is correct
44 Correct 30 ms 8448 KB Output is correct
45 Correct 30 ms 8448 KB Output is correct
46 Correct 29 ms 8696 KB Output is correct
47 Correct 35 ms 8192 KB Output is correct
48 Correct 32 ms 8064 KB Output is correct
49 Correct 32 ms 8148 KB Output is correct
50 Correct 34 ms 8064 KB Output is correct
51 Correct 30 ms 8104 KB Output is correct
52 Correct 31 ms 8192 KB Output is correct
53 Correct 31 ms 8192 KB Output is correct
54 Correct 31 ms 8192 KB Output is correct
55 Correct 31 ms 8192 KB Output is correct
56 Correct 331 ms 8352 KB Output is correct
57 Correct 325 ms 8256 KB Output is correct
58 Correct 343 ms 8292 KB Output is correct
59 Correct 517 ms 8744 KB Output is correct
60 Correct 520 ms 8696 KB Output is correct
61 Correct 503 ms 8672 KB Output is correct
62 Correct 501 ms 8720 KB Output is correct
63 Correct 551 ms 8764 KB Output is correct
64 Correct 557 ms 8792 KB Output is correct
65 Correct 537 ms 8712 KB Output is correct
66 Correct 550 ms 8624 KB Output is correct
67 Correct 529 ms 8748 KB Output is correct
68 Correct 508 ms 8712 KB Output is correct
69 Correct 511 ms 8604 KB Output is correct
70 Correct 538 ms 8852 KB Output is correct
71 Correct 504 ms 8556 KB Output is correct
72 Correct 558 ms 8688 KB Output is correct
73 Correct 522 ms 8764 KB Output is correct
74 Correct 309 ms 8948 KB Output is correct
75 Correct 401 ms 8884 KB Output is correct
76 Correct 340 ms 9080 KB Output is correct
77 Correct 377 ms 8920 KB Output is correct
78 Correct 373 ms 8968 KB Output is correct
79 Correct 312 ms 9104 KB Output is correct
80 Correct 375 ms 8956 KB Output is correct
81 Correct 405 ms 8952 KB Output is correct
82 Correct 389 ms 8820 KB Output is correct
83 Correct 423 ms 8900 KB Output is correct
84 Correct 315 ms 8964 KB Output is correct
85 Correct 403 ms 8948 KB Output is correct
86 Correct 406 ms 8896 KB Output is correct
87 Correct 314 ms 9032 KB Output is correct
88 Correct 515 ms 8556 KB Output is correct
89 Correct 488 ms 8488 KB Output is correct
90 Correct 434 ms 8488 KB Output is correct
91 Correct 431 ms 8488 KB Output is correct
92 Correct 410 ms 8520 KB Output is correct
93 Correct 418 ms 8684 KB Output is correct
94 Correct 414 ms 8756 KB Output is correct
95 Correct 441 ms 8728 KB Output is correct
96 Correct 431 ms 8672 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2061 ms 28652 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 23972 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 7552 KB Output is correct
2 Correct 8 ms 7552 KB Output is correct
3 Correct 8 ms 7616 KB Output is correct
4 Correct 29 ms 8056 KB Output is correct
5 Correct 29 ms 7936 KB Output is correct
6 Correct 29 ms 8192 KB Output is correct
7 Correct 33 ms 8372 KB Output is correct
8 Correct 33 ms 8440 KB Output is correct
9 Correct 38 ms 8448 KB Output is correct
10 Correct 37 ms 8320 KB Output is correct
11 Correct 36 ms 8320 KB Output is correct
12 Correct 35 ms 8436 KB Output is correct
13 Correct 36 ms 8440 KB Output is correct
14 Correct 37 ms 8372 KB Output is correct
15 Correct 36 ms 8448 KB Output is correct
16 Correct 36 ms 8320 KB Output is correct
17 Correct 33 ms 8320 KB Output is correct
18 Correct 33 ms 8320 KB Output is correct
19 Correct 33 ms 8320 KB Output is correct
20 Correct 34 ms 8320 KB Output is correct
21 Correct 36 ms 8424 KB Output is correct
22 Correct 36 ms 8472 KB Output is correct
23 Correct 33 ms 8448 KB Output is correct
24 Correct 34 ms 8696 KB Output is correct
25 Correct 27 ms 8564 KB Output is correct
26 Correct 29 ms 8448 KB Output is correct
27 Correct 27 ms 8576 KB Output is correct
28 Correct 29 ms 8448 KB Output is correct
29 Correct 30 ms 8448 KB Output is correct
30 Correct 29 ms 8576 KB Output is correct
31 Correct 28 ms 8448 KB Output is correct
32 Correct 32 ms 8580 KB Output is correct
33 Correct 32 ms 8448 KB Output is correct
34 Correct 31 ms 8516 KB Output is correct
35 Correct 33 ms 8668 KB Output is correct
36 Correct 25 ms 8648 KB Output is correct
37 Correct 29 ms 8448 KB Output is correct
38 Correct 29 ms 8448 KB Output is correct
39 Correct 29 ms 8576 KB Output is correct
40 Correct 30 ms 8576 KB Output is correct
41 Correct 30 ms 8448 KB Output is correct
42 Correct 29 ms 8368 KB Output is correct
43 Correct 28 ms 8696 KB Output is correct
44 Correct 30 ms 8448 KB Output is correct
45 Correct 30 ms 8448 KB Output is correct
46 Correct 29 ms 8696 KB Output is correct
47 Correct 35 ms 8192 KB Output is correct
48 Correct 32 ms 8064 KB Output is correct
49 Correct 32 ms 8148 KB Output is correct
50 Correct 34 ms 8064 KB Output is correct
51 Correct 30 ms 8104 KB Output is correct
52 Correct 31 ms 8192 KB Output is correct
53 Correct 31 ms 8192 KB Output is correct
54 Correct 31 ms 8192 KB Output is correct
55 Correct 31 ms 8192 KB Output is correct
56 Correct 331 ms 8352 KB Output is correct
57 Correct 325 ms 8256 KB Output is correct
58 Correct 343 ms 8292 KB Output is correct
59 Correct 517 ms 8744 KB Output is correct
60 Correct 520 ms 8696 KB Output is correct
61 Correct 503 ms 8672 KB Output is correct
62 Correct 501 ms 8720 KB Output is correct
63 Correct 551 ms 8764 KB Output is correct
64 Correct 557 ms 8792 KB Output is correct
65 Correct 537 ms 8712 KB Output is correct
66 Correct 550 ms 8624 KB Output is correct
67 Correct 529 ms 8748 KB Output is correct
68 Correct 508 ms 8712 KB Output is correct
69 Correct 511 ms 8604 KB Output is correct
70 Correct 538 ms 8852 KB Output is correct
71 Correct 504 ms 8556 KB Output is correct
72 Correct 558 ms 8688 KB Output is correct
73 Correct 522 ms 8764 KB Output is correct
74 Correct 309 ms 8948 KB Output is correct
75 Correct 401 ms 8884 KB Output is correct
76 Correct 340 ms 9080 KB Output is correct
77 Correct 377 ms 8920 KB Output is correct
78 Correct 373 ms 8968 KB Output is correct
79 Correct 312 ms 9104 KB Output is correct
80 Correct 375 ms 8956 KB Output is correct
81 Correct 405 ms 8952 KB Output is correct
82 Correct 389 ms 8820 KB Output is correct
83 Correct 423 ms 8900 KB Output is correct
84 Correct 315 ms 8964 KB Output is correct
85 Correct 403 ms 8948 KB Output is correct
86 Correct 406 ms 8896 KB Output is correct
87 Correct 314 ms 9032 KB Output is correct
88 Correct 515 ms 8556 KB Output is correct
89 Correct 488 ms 8488 KB Output is correct
90 Correct 434 ms 8488 KB Output is correct
91 Correct 431 ms 8488 KB Output is correct
92 Correct 410 ms 8520 KB Output is correct
93 Correct 418 ms 8684 KB Output is correct
94 Correct 414 ms 8756 KB Output is correct
95 Correct 441 ms 8728 KB Output is correct
96 Correct 431 ms 8672 KB Output is correct
97 Execution timed out 2061 ms 28652 KB Time limit exceeded
98 Halted 0 ms 0 KB -