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답안 #114049

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
114049 2019-05-29T17:43:28 Z sebinkim Iqea (innopolis2018_final_C) C++14
36 / 100
 2000 ms 28704 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 = 100;

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(q % sz == 0) 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

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 7552 KB Output is correct
2 Correct 7 ms 7552 KB Output is correct
3 Correct 8 ms 7552 KB Output is correct
4 Correct 29 ms 7936 KB Output is correct
5 Correct 28 ms 7984 KB Output is correct
6 Correct 28 ms 8064 KB Output is correct
7 Correct 38 ms 8320 KB Output is correct
8 Correct 36 ms 8320 KB Output is correct
9 Correct 38 ms 8448 KB Output is correct
10 Correct 39 ms 8540 KB Output is correct
11 Correct 39 ms 8320 KB Output is correct
12 Correct 36 ms 8440 KB Output is correct
13 Correct 37 ms 8440 KB Output is correct
14 Correct 41 ms 8448 KB Output is correct
15 Correct 37 ms 8448 KB Output is correct
16 Correct 44 ms 8320 KB Output is correct
17 Correct 37 ms 8320 KB Output is correct
18 Correct 36 ms 8320 KB Output is correct
19 Correct 36 ms 8320 KB Output is correct
20 Correct 38 ms 8460 KB Output is correct
21 Correct 36 ms 8320 KB Output is correct
22 Correct 35 ms 8448 KB Output is correct
23 Correct 35 ms 8448 KB Output is correct
24 Correct 33 ms 8448 KB Output is correct
25 Correct 28 ms 8704 KB Output is correct
26 Correct 29 ms 8448 KB Output is correct
27 Correct 25 ms 8576 KB Output is correct
28 Correct 31 ms 8448 KB Output is correct
29 Correct 31 ms 8576 KB Output is correct
30 Correct 30 ms 8576 KB Output is correct
31 Correct 30 ms 8576 KB Output is correct
32 Correct 33 ms 8576 KB Output is correct
33 Correct 34 ms 8696 KB Output is correct
34 Correct 34 ms 8448 KB Output is correct
35 Correct 32 ms 8576 KB Output is correct
36 Correct 26 ms 8576 KB Output is correct
37 Correct 30 ms 8576 KB Output is correct
38 Correct 31 ms 8448 KB Output is correct
39 Correct 30 ms 8576 KB Output is correct
40 Correct 31 ms 8576 KB Output is correct
41 Correct 32 ms 8448 KB Output is correct
42 Correct 33 ms 8448 KB Output is correct
43 Correct 27 ms 8576 KB Output is correct
44 Correct 33 ms 8420 KB Output is correct
45 Correct 34 ms 8448 KB Output is correct
46 Correct 28 ms 8576 KB Output is correct
47 Correct 38 ms 8192 KB Output is correct
48 Correct 38 ms 8172 KB Output is correct
49 Correct 36 ms 8064 KB Output is correct
50 Correct 36 ms 8064 KB Output is correct
51 Correct 33 ms 8064 KB Output is correct
52 Correct 35 ms 8320 KB Output is correct
53 Correct 33 ms 8292 KB Output is correct
54 Correct 34 ms 8192 KB Output is correct
55 Correct 34 ms 8312 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 7552 KB Output is correct
2 Correct 7 ms 7552 KB Output is correct
3 Correct 8 ms 7552 KB Output is correct
4 Correct 29 ms 7936 KB Output is correct
5 Correct 28 ms 7984 KB Output is correct
6 Correct 28 ms 8064 KB Output is correct
7 Correct 38 ms 8320 KB Output is correct
8 Correct 36 ms 8320 KB Output is correct
9 Correct 38 ms 8448 KB Output is correct
10 Correct 39 ms 8540 KB Output is correct
11 Correct 39 ms 8320 KB Output is correct
12 Correct 36 ms 8440 KB Output is correct
13 Correct 37 ms 8440 KB Output is correct
14 Correct 41 ms 8448 KB Output is correct
15 Correct 37 ms 8448 KB Output is correct
16 Correct 44 ms 8320 KB Output is correct
17 Correct 37 ms 8320 KB Output is correct
18 Correct 36 ms 8320 KB Output is correct
19 Correct 36 ms 8320 KB Output is correct
20 Correct 38 ms 8460 KB Output is correct
21 Correct 36 ms 8320 KB Output is correct
22 Correct 35 ms 8448 KB Output is correct
23 Correct 35 ms 8448 KB Output is correct
24 Correct 33 ms 8448 KB Output is correct
25 Correct 28 ms 8704 KB Output is correct
26 Correct 29 ms 8448 KB Output is correct
27 Correct 25 ms 8576 KB Output is correct
28 Correct 31 ms 8448 KB Output is correct
29 Correct 31 ms 8576 KB Output is correct
30 Correct 30 ms 8576 KB Output is correct
31 Correct 30 ms 8576 KB Output is correct
32 Correct 33 ms 8576 KB Output is correct
33 Correct 34 ms 8696 KB Output is correct
34 Correct 34 ms 8448 KB Output is correct
35 Correct 32 ms 8576 KB Output is correct
36 Correct 26 ms 8576 KB Output is correct
37 Correct 30 ms 8576 KB Output is correct
38 Correct 31 ms 8448 KB Output is correct
39 Correct 30 ms 8576 KB Output is correct
40 Correct 31 ms 8576 KB Output is correct
41 Correct 32 ms 8448 KB Output is correct
42 Correct 33 ms 8448 KB Output is correct
43 Correct 27 ms 8576 KB Output is correct
44 Correct 33 ms 8420 KB Output is correct
45 Correct 34 ms 8448 KB Output is correct
46 Correct 28 ms 8576 KB Output is correct
47 Correct 38 ms 8192 KB Output is correct
48 Correct 38 ms 8172 KB Output is correct
49 Correct 36 ms 8064 KB Output is correct
50 Correct 36 ms 8064 KB Output is correct
51 Correct 33 ms 8064 KB Output is correct
52 Correct 35 ms 8320 KB Output is correct
53 Correct 33 ms 8292 KB Output is correct
54 Correct 34 ms 8192 KB Output is correct
55 Correct 34 ms 8312 KB Output is correct
56 Correct 196 ms 8248 KB Output is correct
57 Correct 195 ms 8284 KB Output is correct
58 Correct 198 ms 8300 KB Output is correct
59 Correct 243 ms 8744 KB Output is correct
60 Correct 259 ms 8668 KB Output is correct
61 Correct 275 ms 8840 KB Output is correct
62 Correct 251 ms 8708 KB Output is correct
63 Correct 272 ms 8696 KB Output is correct
64 Correct 269 ms 8856 KB Output is correct
65 Correct 272 ms 8696 KB Output is correct
66 Correct 270 ms 8824 KB Output is correct
67 Correct 269 ms 8824 KB Output is correct
68 Correct 264 ms 8568 KB Output is correct
69 Correct 258 ms 8824 KB Output is correct
70 Correct 247 ms 8696 KB Output is correct
71 Correct 231 ms 8568 KB Output is correct
72 Correct 270 ms 8852 KB Output is correct
73 Correct 254 ms 8696 KB Output is correct
74 Correct 200 ms 9060 KB Output is correct
75 Correct 229 ms 8824 KB Output is correct
76 Correct 171 ms 9080 KB Output is correct
77 Correct 232 ms 8824 KB Output is correct
78 Correct 243 ms 8924 KB Output is correct
79 Correct 194 ms 8952 KB Output is correct
80 Correct 234 ms 8868 KB Output is correct
81 Correct 231 ms 8824 KB Output is correct
82 Correct 231 ms 8824 KB Output is correct
83 Correct 247 ms 8940 KB Output is correct
84 Correct 196 ms 8872 KB Output is correct
85 Correct 282 ms 8820 KB Output is correct
86 Correct 240 ms 8876 KB Output is correct
87 Correct 221 ms 8960 KB Output is correct
88 Correct 281 ms 8568 KB Output is correct
89 Correct 281 ms 8568 KB Output is correct
90 Correct 282 ms 8412 KB Output is correct
91 Correct 294 ms 8568 KB Output is correct
92 Correct 229 ms 8312 KB Output is correct
93 Correct 255 ms 8696 KB Output is correct
94 Correct 259 ms 8696 KB Output is correct
95 Correct 255 ms 8568 KB Output is correct
96 Correct 250 ms 8696 KB Output is correct

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2053 ms 28704 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2062 ms 24048 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 7552 KB Output is correct
2 Correct 7 ms 7552 KB Output is correct
3 Correct 8 ms 7552 KB Output is correct
4 Correct 29 ms 7936 KB Output is correct
5 Correct 28 ms 7984 KB Output is correct
6 Correct 28 ms 8064 KB Output is correct
7 Correct 38 ms 8320 KB Output is correct
8 Correct 36 ms 8320 KB Output is correct
9 Correct 38 ms 8448 KB Output is correct
10 Correct 39 ms 8540 KB Output is correct
11 Correct 39 ms 8320 KB Output is correct
12 Correct 36 ms 8440 KB Output is correct
13 Correct 37 ms 8440 KB Output is correct
14 Correct 41 ms 8448 KB Output is correct
15 Correct 37 ms 8448 KB Output is correct
16 Correct 44 ms 8320 KB Output is correct
17 Correct 37 ms 8320 KB Output is correct
18 Correct 36 ms 8320 KB Output is correct
19 Correct 36 ms 8320 KB Output is correct
20 Correct 38 ms 8460 KB Output is correct
21 Correct 36 ms 8320 KB Output is correct
22 Correct 35 ms 8448 KB Output is correct
23 Correct 35 ms 8448 KB Output is correct
24 Correct 33 ms 8448 KB Output is correct
25 Correct 28 ms 8704 KB Output is correct
26 Correct 29 ms 8448 KB Output is correct
27 Correct 25 ms 8576 KB Output is correct
28 Correct 31 ms 8448 KB Output is correct
29 Correct 31 ms 8576 KB Output is correct
30 Correct 30 ms 8576 KB Output is correct
31 Correct 30 ms 8576 KB Output is correct
32 Correct 33 ms 8576 KB Output is correct
33 Correct 34 ms 8696 KB Output is correct
34 Correct 34 ms 8448 KB Output is correct
35 Correct 32 ms 8576 KB Output is correct
36 Correct 26 ms 8576 KB Output is correct
37 Correct 30 ms 8576 KB Output is correct
38 Correct 31 ms 8448 KB Output is correct
39 Correct 30 ms 8576 KB Output is correct
40 Correct 31 ms 8576 KB Output is correct
41 Correct 32 ms 8448 KB Output is correct
42 Correct 33 ms 8448 KB Output is correct
43 Correct 27 ms 8576 KB Output is correct
44 Correct 33 ms 8420 KB Output is correct
45 Correct 34 ms 8448 KB Output is correct
46 Correct 28 ms 8576 KB Output is correct
47 Correct 38 ms 8192 KB Output is correct
48 Correct 38 ms 8172 KB Output is correct
49 Correct 36 ms 8064 KB Output is correct
50 Correct 36 ms 8064 KB Output is correct
51 Correct 33 ms 8064 KB Output is correct
52 Correct 35 ms 8320 KB Output is correct
53 Correct 33 ms 8292 KB Output is correct
54 Correct 34 ms 8192 KB Output is correct
55 Correct 34 ms 8312 KB Output is correct
56 Correct 196 ms 8248 KB Output is correct
57 Correct 195 ms 8284 KB Output is correct
58 Correct 198 ms 8300 KB Output is correct
59 Correct 243 ms 8744 KB Output is correct
60 Correct 259 ms 8668 KB Output is correct
61 Correct 275 ms 8840 KB Output is correct
62 Correct 251 ms 8708 KB Output is correct
63 Correct 272 ms 8696 KB Output is correct
64 Correct 269 ms 8856 KB Output is correct
65 Correct 272 ms 8696 KB Output is correct
66 Correct 270 ms 8824 KB Output is correct
67 Correct 269 ms 8824 KB Output is correct
68 Correct 264 ms 8568 KB Output is correct
69 Correct 258 ms 8824 KB Output is correct
70 Correct 247 ms 8696 KB Output is correct
71 Correct 231 ms 8568 KB Output is correct
72 Correct 270 ms 8852 KB Output is correct
73 Correct 254 ms 8696 KB Output is correct
74 Correct 200 ms 9060 KB Output is correct
75 Correct 229 ms 8824 KB Output is correct
76 Correct 171 ms 9080 KB Output is correct
77 Correct 232 ms 8824 KB Output is correct
78 Correct 243 ms 8924 KB Output is correct
79 Correct 194 ms 8952 KB Output is correct
80 Correct 234 ms 8868 KB Output is correct
81 Correct 231 ms 8824 KB Output is correct
82 Correct 231 ms 8824 KB Output is correct
83 Correct 247 ms 8940 KB Output is correct
84 Correct 196 ms 8872 KB Output is correct
85 Correct 282 ms 8820 KB Output is correct
86 Correct 240 ms 8876 KB Output is correct
87 Correct 221 ms 8960 KB Output is correct
88 Correct 281 ms 8568 KB Output is correct
89 Correct 281 ms 8568 KB Output is correct
90 Correct 282 ms 8412 KB Output is correct
91 Correct 294 ms 8568 KB Output is correct
92 Correct 229 ms 8312 KB Output is correct
93 Correct 255 ms 8696 KB Output is correct
94 Correct 259 ms 8696 KB Output is correct
95 Correct 255 ms 8568 KB Output is correct
96 Correct 250 ms 8696 KB Output is correct
97 Execution timed out 2053 ms 28704 KB Time limit exceeded
98 Halted 0 ms 0 KB -