oj.uz

Submission #121142

# Submission time Handle Problem Language Result Execution time Memory
121142 2019-06-26T07:07:18 Z 김세빈(#2968) Unique Cities (JOI19_ho_t5) C++14
100 / 100
 846 ms 42288 KB 
#include <bits/stdc++.h>

using namespace std;

vector <int> T[202020];
int P[202020], L[202020], N[202020];
int K[202020], C[202020];
int D1[202020], D2[202020], A1[202020], A2[202020];
int n, m, s, mx, mi;

int dfs1(int p, int r, int *D)
{
	P[p] = r; D[p] = D[r] + 1; L[p] = 1;
	if(D[p] > mx) mx = D[p], mi = p;

	for(int &t: T[p]){
		if(t != r){
			L[p] = max(L[p], dfs1(t, p, D) + 1);
		}
	}

	return L[p];
}

int color(int p, int x, int *D)
{
	if(!p || x <= 0) return p;
	else if(N[p] == p){
		K[C[p]] --; s -= (K[C[p]] == 0);
		N[p] = color(P[p], x - 1, D);
	}
	else N[p] = color(N[p], x - D[p] + D[N[p]], D);
}

void dfs2(int p, int r, int *D, int *A)
{
	int m1, m2, v;

	s += (K[C[p]] == 0); K[C[p]] ++;

	m1 = m2 = v = 0;

	for(int &t: T[p]){
		if(t != r){
			if(L[t] > m1) m2 = m1, m1 = L[t], v = t;
			else if(L[t] > m2) m2 = L[t];
		}
	}

//	printf("%d %d %d\n", p, m1, m2);

	color(P[p], m2, D);
	if(v) dfs2(v, p, D, A);
	color(P[p], m1, D);

	for(int &t: T[p]){
		if(t != r && t != v){
			if(N[p] != p){
				s += (K[C[p]] == 0); K[C[p]] ++;
				N[p] = p;
			}
			dfs2(t, p, D, A);
		}
	}

	if(N[p] == p){
		K[C[p]] --; s -= (K[C[p]] == 0);
		N[p] = P[p];
	}

	A[p] = s;
}

int main()
{
	int i, u, v;

	scanf("%d%d", &n, &m);

	for(i=1; i<n; i++){
		scanf("%d%d", &u, &v);
		T[u].push_back(v);
		T[v].push_back(u);
	}

	for(i=1; i<=n; i++){
		scanf("%d", C + i);
		N[i] = i;
	}

	mx = 0; dfs1(1, 0, D1); u = mi;
	mx = 0; dfs1(u, 0, D1); v = mi;
	dfs2(u, 0, D1, A1);

//	for(i=1; i<=n; i++) printf("%d ", A1[i]); printf("\n");

	s = 0;

	for(i=1; i<=n; i++){
		K[i] = 0; N[i] = i;
	}

	dfs1(v, 0, D2); dfs2(v, 0, D2, A2);

//	for(i=1; i<=n; i++) printf("%d ", A2[i]); printf("\n");

	for(i=1; i<=n; i++){
		if(D1[i] > D2[i]) printf("%d\n", A1[i]);
		else printf("%d\n", A2[i]);
	}

	return 0;
}

Compilation message

joi2019_ho_t5.cpp: In function 'int color(int, int, int*)':
joi2019_ho_t5.cpp:33:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
joi2019_ho_t5.cpp: In function 'int main()':
joi2019_ho_t5.cpp:78:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
joi2019_ho_t5.cpp:81:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &u, &v);
   ~~~~~^~~~~~~~~~~~~~~~
joi2019_ho_t5.cpp:87:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", C + i);
   ~~~~~^~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5120 KB Output is correct
2 Correct 8 ms 5248 KB Output is correct
3 Correct 8 ms 5248 KB Output is correct
4 Correct 8 ms 5376 KB Output is correct
5 Correct 8 ms 5248 KB Output is correct
6 Correct 11 ms 5500 KB Output is correct
7 Correct 8 ms 5376 KB Output is correct
8 Correct 8 ms 5248 KB Output is correct
9 Correct 8 ms 5248 KB Output is correct
10 Correct 7 ms 5248 KB Output is correct
11 Correct 7 ms 5248 KB Output is correct
12 Correct 7 ms 5248 KB Output is correct
13 Correct 8 ms 5376 KB Output is correct
14 Correct 8 ms 5376 KB Output is correct
15 Correct 7 ms 5376 KB Output is correct
16 Correct 7 ms 5248 KB Output is correct
17 Correct 7 ms 5376 KB Output is correct
18 Correct 7 ms 5376 KB Output is correct
19 Correct 7 ms 5248 KB Output is correct
20 Correct 8 ms 5504 KB Output is correct
21 Correct 8 ms 5376 KB Output is correct
22 Correct 7 ms 5248 KB Output is correct
23 Correct 7 ms 5248 KB Output is correct
24 Correct 7 ms 5248 KB Output is correct
25 Correct 7 ms 5248 KB Output is correct
26 Correct 7 ms 5248 KB Output is correct
27 Correct 8 ms 5376 KB Output is correct
28 Correct 7 ms 5376 KB Output is correct
29 Correct 7 ms 5376 KB Output is correct
30 Correct 7 ms 5248 KB Output is correct
31 Correct 8 ms 5376 KB Output is correct
32 Correct 8 ms 5376 KB Output is correct

Subtask #2
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 167 ms 14700 KB Output is correct
2 Correct 278 ms 25464 KB Output is correct
3 Correct 36 ms 8852 KB Output is correct
4 Correct 597 ms 21980 KB Output is correct
5 Correct 693 ms 40664 KB Output is correct
6 Correct 632 ms 31256 KB Output is correct
7 Correct 432 ms 21876 KB Output is correct
8 Correct 431 ms 23672 KB Output is correct
9 Correct 470 ms 23288 KB Output is correct
10 Correct 467 ms 23216 KB Output is correct
11 Correct 219 ms 22632 KB Output is correct
12 Correct 537 ms 33440 KB Output is correct
13 Correct 471 ms 31016 KB Output is correct
14 Correct 511 ms 30532 KB Output is correct
15 Correct 199 ms 22476 KB Output is correct
16 Correct 489 ms 34568 KB Output is correct
17 Correct 502 ms 31324 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 339 ms 18936 KB Output is correct
2 Correct 596 ms 40628 KB Output is correct
3 Correct 46 ms 9328 KB Output is correct
4 Correct 461 ms 22652 KB Output is correct
5 Correct 661 ms 42288 KB Output is correct
6 Correct 631 ms 32232 KB Output is correct
7 Correct 488 ms 22844 KB Output is correct
8 Correct 528 ms 26744 KB Output is correct
9 Correct 568 ms 25436 KB Output is correct
10 Correct 535 ms 24328 KB Output is correct
11 Correct 374 ms 23024 KB Output is correct
12 Correct 669 ms 38472 KB Output is correct
13 Correct 517 ms 31120 KB Output is correct
14 Correct 846 ms 31332 KB Output is correct
15 Correct 203 ms 23500 KB Output is correct
16 Correct 491 ms 35952 KB Output is correct
17 Correct 524 ms 32372 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5120 KB Output is correct
2 Correct 8 ms 5248 KB Output is correct
3 Correct 8 ms 5248 KB Output is correct
4 Correct 8 ms 5376 KB Output is correct
5 Correct 8 ms 5248 KB Output is correct
6 Correct 11 ms 5500 KB Output is correct
7 Correct 8 ms 5376 KB Output is correct
8 Correct 8 ms 5248 KB Output is correct
9 Correct 8 ms 5248 KB Output is correct
10 Correct 7 ms 5248 KB Output is correct
11 Correct 7 ms 5248 KB Output is correct
12 Correct 7 ms 5248 KB Output is correct
13 Correct 8 ms 5376 KB Output is correct
14 Correct 8 ms 5376 KB Output is correct
15 Correct 7 ms 5376 KB Output is correct
16 Correct 7 ms 5248 KB Output is correct
17 Correct 7 ms 5376 KB Output is correct
18 Correct 7 ms 5376 KB Output is correct
19 Correct 7 ms 5248 KB Output is correct
20 Correct 8 ms 5504 KB Output is correct
21 Correct 8 ms 5376 KB Output is correct
22 Correct 7 ms 5248 KB Output is correct
23 Correct 7 ms 5248 KB Output is correct
24 Correct 7 ms 5248 KB Output is correct
25 Correct 7 ms 5248 KB Output is correct
26 Correct 7 ms 5248 KB Output is correct
27 Correct 8 ms 5376 KB Output is correct
28 Correct 7 ms 5376 KB Output is correct
29 Correct 7 ms 5376 KB Output is correct
30 Correct 7 ms 5248 KB Output is correct
31 Correct 8 ms 5376 KB Output is correct
32 Correct 8 ms 5376 KB Output is correct
33 Correct 167 ms 14700 KB Output is correct
34 Correct 278 ms 25464 KB Output is correct
35 Correct 36 ms 8852 KB Output is correct
36 Correct 597 ms 21980 KB Output is correct
37 Correct 693 ms 40664 KB Output is correct
38 Correct 632 ms 31256 KB Output is correct
39 Correct 432 ms 21876 KB Output is correct
40 Correct 431 ms 23672 KB Output is correct
41 Correct 470 ms 23288 KB Output is correct
42 Correct 467 ms 23216 KB Output is correct
43 Correct 219 ms 22632 KB Output is correct
44 Correct 537 ms 33440 KB Output is correct
45 Correct 471 ms 31016 KB Output is correct
46 Correct 511 ms 30532 KB Output is correct
47 Correct 199 ms 22476 KB Output is correct
48 Correct 489 ms 34568 KB Output is correct
49 Correct 502 ms 31324 KB Output is correct
50 Correct 339 ms 18936 KB Output is correct
51 Correct 596 ms 40628 KB Output is correct
52 Correct 46 ms 9328 KB Output is correct
53 Correct 461 ms 22652 KB Output is correct
54 Correct 661 ms 42288 KB Output is correct
55 Correct 631 ms 32232 KB Output is correct
56 Correct 488 ms 22844 KB Output is correct
57 Correct 528 ms 26744 KB Output is correct
58 Correct 568 ms 25436 KB Output is correct
59 Correct 535 ms 24328 KB Output is correct
60 Correct 374 ms 23024 KB Output is correct
61 Correct 669 ms 38472 KB Output is correct
62 Correct 517 ms 31120 KB Output is correct
63 Correct 846 ms 31332 KB Output is correct
64 Correct 203 ms 23500 KB Output is correct
65 Correct 491 ms 35952 KB Output is correct
66 Correct 524 ms 32372 KB Output is correct
67 Correct 35 ms 7544 KB Output is correct
68 Correct 182 ms 20952 KB Output is correct
69 Correct 303 ms 21736 KB Output is correct
70 Correct 446 ms 21856 KB Output is correct
71 Correct 578 ms 40516 KB Output is correct
72 Correct 564 ms 31128 KB Output is correct
73 Correct 421 ms 21884 KB Output is correct
74 Correct 488 ms 25436 KB Output is correct
75 Correct 472 ms 23576 KB Output is correct
76 Correct 449 ms 23352 KB Output is correct
77 Correct 346 ms 22172 KB Output is correct
78 Correct 565 ms 35472 KB Output is correct
79 Correct 479 ms 33256 KB Output is correct
80 Correct 508 ms 29420 KB Output is correct
81 Correct 184 ms 22192 KB Output is correct
82 Correct 476 ms 34504 KB Output is correct
83 Correct 518 ms 31392 KB Output is correct
84 Correct 486 ms 22112 KB Output is correct
85 Correct 649 ms 41328 KB Output is correct
86 Correct 605 ms 31780 KB Output is correct
87 Correct 469 ms 22136 KB Output is correct
88 Correct 627 ms 26240 KB Output is correct
89 Correct 469 ms 24440 KB Output is correct
90 Correct 478 ms 23760 KB Output is correct
91 Correct 327 ms 22640 KB Output is correct
92 Correct 624 ms 40696 KB Output is correct
93 Correct 467 ms 28956 KB Output is correct
94 Correct 546 ms 27072 KB Output is correct
95 Correct 208 ms 22888 KB Output is correct
96 Correct 535 ms 35180 KB Output is correct
97 Correct 550 ms 31820 KB Output is correct
98 Correct 512 ms 22776 KB Output is correct
99 Correct 654 ms 41560 KB Output is correct
100 Correct 580 ms 32220 KB Output is correct
101 Correct 459 ms 22760 KB Output is correct
102 Correct 499 ms 25820 KB Output is correct
103 Correct 461 ms 24624 KB Output is correct
104 Correct 546 ms 24220 KB Output is correct
105 Correct 337 ms 22896 KB Output is correct
106 Correct 571 ms 33656 KB Output is correct
107 Correct 556 ms 34076 KB Output is correct
108 Correct 587 ms 28584 KB Output is correct
109 Correct 260 ms 23404 KB Output is correct
110 Correct 521 ms 35900 KB Output is correct
111 Correct 583 ms 32376 KB Output is correct