답안 #105887

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
105887	2019-04-15T14:32:36 Z	Kepperoni	Mergers (JOI19_mergers)	C++14	100 / 100	1345 ms	63452 KB

mergers

#include <bits/stdc++.h>
#define x first
#define y second
#define pb push_back
#define all(x) x.begin(), x.end()

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pii;

const int MAXN = 5e5 + 10;

int n, kk;
int gr[MAXN];
int le[MAXN], ri[MAXN];
int fi[MAXN], se[MAXN];
int cmi[MAXN], cma[MAXN], cnt[MAXN], tr[MAXN];
vector<int> k[MAXN];

int leaf = 1;
int ccnt = 1;
void prep(int v, int p = 0){
	le[v] = ccnt;
	ri[v] = ccnt;
	fi[gr[v]] = min(fi[gr[v]], ccnt);
	se[gr[v]] = max(se[gr[v]], ccnt);
	ccnt++;

	for(auto x : k[v]){
		if(x != p){
			prep(x, v);
			ri[v] = ri[x];
		}
	}
}

void go(int v, int p = 0){
	cmi[v] = fi[gr[v]];
	cma[v] = se[gr[v]];
	for(auto x : k[v]){
		if(x != p){
			go(x, v);				
			cmi[v] = min(cmi[v], cmi[x]);
			cma[v] = max(cma[v], cma[x]);
			cnt[v] += cnt[x];
		}
	}

	if(cmi[v] >= le[v] && cma[v] <= ri[v]){
		if(cnt[v] == 0 && v != 1)
			leaf++;
		if(cnt[v] == 1 && v == 1)
			leaf++;

		cnt[v] = 1;
	}
}

int main(){
	scanf(" %d %d", &n, &kk);
	
	for(int i=0; i<n-1; i++){
		int ca, cb; scanf(" %d %d", &ca, &cb);
		k[ca].pb(cb);
		k[cb].pb(ca);
	}

	for(int i=1; i<=n; i++) scanf(" %d", &gr[i]);
	for(int i=1; i<=kk; i++) fi[i] = 1e6;

	prep(1);
	go(1);

	printf("%d\n", leaf/2);
}

Compilation message

mergers.cpp: In function 'int main()':
mergers.cpp:61:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf(" %d %d", &n, &kk);
  ~~~~~^~~~~~~~~~~~~~~~~~~
mergers.cpp:64:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int ca, cb; scanf(" %d %d", &ca, &cb);
               ~~~~~^~~~~~~~~~~~~~~~~~~~
mergers.cpp:69:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<=n; i++) scanf(" %d", &gr[i]);
                          ~~~~~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	12160 KB	Output is correct
2	Correct	13 ms	12160 KB	Output is correct
3	Correct	14 ms	12160 KB	Output is correct
4	Correct	14 ms	12160 KB	Output is correct
5	Correct	15 ms	12288 KB	Output is correct
6	Correct	10 ms	12160 KB	Output is correct
7	Correct	14 ms	12108 KB	Output is correct
8	Correct	14 ms	12160 KB	Output is correct
9	Correct	14 ms	12160 KB	Output is correct
10	Correct	13 ms	12160 KB	Output is correct
11	Correct	15 ms	12160 KB	Output is correct
12	Correct	14 ms	12288 KB	Output is correct
13	Correct	13 ms	12160 KB	Output is correct
14	Correct	15 ms	12160 KB	Output is correct
15	Correct	16 ms	12160 KB	Output is correct
16	Correct	15 ms	12160 KB	Output is correct
17	Correct	15 ms	12160 KB	Output is correct
18	Correct	15 ms	12160 KB	Output is correct
19	Correct	13 ms	12160 KB	Output is correct
20	Correct	15 ms	12160 KB	Output is correct
21	Correct	13 ms	12160 KB	Output is correct
22	Correct	15 ms	12160 KB	Output is correct
23	Correct	14 ms	12160 KB	Output is correct
24	Correct	16 ms	12160 KB	Output is correct

Subtask #2
24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	12160 KB	Output is correct
2	Correct	13 ms	12160 KB	Output is correct
3	Correct	14 ms	12160 KB	Output is correct
4	Correct	14 ms	12160 KB	Output is correct
5	Correct	15 ms	12288 KB	Output is correct
6	Correct	10 ms	12160 KB	Output is correct
7	Correct	14 ms	12108 KB	Output is correct
8	Correct	14 ms	12160 KB	Output is correct
9	Correct	14 ms	12160 KB	Output is correct
10	Correct	13 ms	12160 KB	Output is correct
11	Correct	15 ms	12160 KB	Output is correct
12	Correct	14 ms	12288 KB	Output is correct
13	Correct	13 ms	12160 KB	Output is correct
14	Correct	15 ms	12160 KB	Output is correct
15	Correct	16 ms	12160 KB	Output is correct
16	Correct	15 ms	12160 KB	Output is correct
17	Correct	15 ms	12160 KB	Output is correct
18	Correct	15 ms	12160 KB	Output is correct
19	Correct	13 ms	12160 KB	Output is correct
20	Correct	15 ms	12160 KB	Output is correct
21	Correct	13 ms	12160 KB	Output is correct
22	Correct	15 ms	12160 KB	Output is correct
23	Correct	14 ms	12160 KB	Output is correct
24	Correct	16 ms	12160 KB	Output is correct
25	Correct	14 ms	12160 KB	Output is correct
26	Correct	17 ms	12288 KB	Output is correct
27	Correct	17 ms	12420 KB	Output is correct
28	Correct	16 ms	12536 KB	Output is correct
29	Correct	17 ms	12416 KB	Output is correct
30	Correct	16 ms	12288 KB	Output is correct
31	Correct	15 ms	12160 KB	Output is correct
32	Correct	16 ms	12416 KB	Output is correct
33	Correct	17 ms	12160 KB	Output is correct
34	Correct	17 ms	12288 KB	Output is correct
35	Correct	19 ms	12288 KB	Output is correct
36	Correct	19 ms	12288 KB	Output is correct
37	Correct	17 ms	12288 KB	Output is correct
38	Correct	13 ms	12160 KB	Output is correct
39	Correct	16 ms	12160 KB	Output is correct
40	Correct	17 ms	12288 KB	Output is correct
41	Correct	17 ms	12288 KB	Output is correct
42	Correct	15 ms	12288 KB	Output is correct
43	Correct	19 ms	12416 KB	Output is correct
44	Correct	16 ms	12160 KB	Output is correct
45	Correct	16 ms	12288 KB	Output is correct
46	Correct	15 ms	12288 KB	Output is correct
47	Correct	14 ms	12160 KB	Output is correct
48	Correct	15 ms	12288 KB	Output is correct
49	Correct	13 ms	12288 KB	Output is correct
50	Correct	19 ms	12288 KB	Output is correct
51	Correct	16 ms	12288 KB	Output is correct
52	Correct	15 ms	12288 KB	Output is correct
53	Correct	15 ms	12288 KB	Output is correct
54	Correct	14 ms	12288 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	12160 KB	Output is correct
2	Correct	13 ms	12160 KB	Output is correct
3	Correct	14 ms	12160 KB	Output is correct
4	Correct	14 ms	12160 KB	Output is correct
5	Correct	15 ms	12288 KB	Output is correct
6	Correct	10 ms	12160 KB	Output is correct
7	Correct	14 ms	12108 KB	Output is correct
8	Correct	14 ms	12160 KB	Output is correct
9	Correct	14 ms	12160 KB	Output is correct
10	Correct	13 ms	12160 KB	Output is correct
11	Correct	15 ms	12160 KB	Output is correct
12	Correct	14 ms	12288 KB	Output is correct
13	Correct	13 ms	12160 KB	Output is correct
14	Correct	15 ms	12160 KB	Output is correct
15	Correct	16 ms	12160 KB	Output is correct
16	Correct	15 ms	12160 KB	Output is correct
17	Correct	15 ms	12160 KB	Output is correct
18	Correct	15 ms	12160 KB	Output is correct
19	Correct	13 ms	12160 KB	Output is correct
20	Correct	15 ms	12160 KB	Output is correct
21	Correct	13 ms	12160 KB	Output is correct
22	Correct	15 ms	12160 KB	Output is correct
23	Correct	14 ms	12160 KB	Output is correct
24	Correct	16 ms	12160 KB	Output is correct
25	Correct	13 ms	12160 KB	Output is correct
26	Correct	112 ms	17780 KB	Output is correct
27	Correct	143 ms	17784 KB	Output is correct
28	Correct	17 ms	12288 KB	Output is correct
29	Correct	16 ms	12160 KB	Output is correct
30	Correct	16 ms	12144 KB	Output is correct
31	Correct	136 ms	17760 KB	Output is correct
32	Correct	15 ms	12288 KB	Output is correct
33	Correct	212 ms	23516 KB	Output is correct
34	Correct	141 ms	17828 KB	Output is correct
35	Correct	17 ms	12336 KB	Output is correct
36	Correct	172 ms	18292 KB	Output is correct
37	Correct	15 ms	12288 KB	Output is correct
38	Correct	15 ms	12288 KB	Output is correct
39	Correct	99 ms	17648 KB	Output is correct
40	Correct	14 ms	12416 KB	Output is correct
41	Correct	138 ms	17668 KB	Output is correct
42	Correct	160 ms	19588 KB	Output is correct
43	Correct	13 ms	12160 KB	Output is correct
44	Correct	155 ms	23804 KB	Output is correct
45	Correct	142 ms	20600 KB	Output is correct
46	Correct	14 ms	12288 KB	Output is correct
47	Correct	15 ms	12288 KB	Output is correct

Subtask #4
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	102 ms	17620 KB	Output is correct
2	Correct	88 ms	18800 KB	Output is correct
3	Correct	16 ms	12288 KB	Output is correct
4	Correct	15 ms	12288 KB	Output is correct
5	Correct	13 ms	12160 KB	Output is correct
6	Correct	12 ms	12160 KB	Output is correct
7	Correct	17 ms	12288 KB	Output is correct
8	Correct	147 ms	18124 KB	Output is correct
9	Correct	16 ms	12288 KB	Output is correct
10	Correct	133 ms	17720 KB	Output is correct
11	Correct	14 ms	12132 KB	Output is correct
12	Correct	195 ms	17644 KB	Output is correct
13	Correct	190 ms	18100 KB	Output is correct
14	Correct	155 ms	18572 KB	Output is correct
15	Correct	105 ms	17648 KB	Output is correct
16	Correct	16 ms	12260 KB	Output is correct
17	Correct	17 ms	12120 KB	Output is correct
18	Correct	105 ms	18672 KB	Output is correct
19	Correct	181 ms	21752 KB	Output is correct
20	Correct	17 ms	12288 KB	Output is correct
21	Correct	14 ms	12160 KB	Output is correct
22	Correct	95 ms	18416 KB	Output is correct
23	Correct	15 ms	12288 KB	Output is correct
24	Correct	155 ms	17728 KB	Output is correct
25	Correct	140 ms	20472 KB	Output is correct
26	Correct	14 ms	12416 KB	Output is correct
27	Correct	15 ms	12416 KB	Output is correct
28	Correct	14 ms	12288 KB	Output is correct
29	Correct	16 ms	12288 KB	Output is correct
30	Correct	19 ms	12288 KB	Output is correct

Subtask #5
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	12160 KB	Output is correct
2	Correct	13 ms	12160 KB	Output is correct
3	Correct	14 ms	12160 KB	Output is correct
4	Correct	14 ms	12160 KB	Output is correct
5	Correct	15 ms	12288 KB	Output is correct
6	Correct	10 ms	12160 KB	Output is correct
7	Correct	14 ms	12108 KB	Output is correct
8	Correct	14 ms	12160 KB	Output is correct
9	Correct	14 ms	12160 KB	Output is correct
10	Correct	13 ms	12160 KB	Output is correct
11	Correct	15 ms	12160 KB	Output is correct
12	Correct	14 ms	12288 KB	Output is correct
13	Correct	13 ms	12160 KB	Output is correct
14	Correct	15 ms	12160 KB	Output is correct
15	Correct	16 ms	12160 KB	Output is correct
16	Correct	15 ms	12160 KB	Output is correct
17	Correct	15 ms	12160 KB	Output is correct
18	Correct	15 ms	12160 KB	Output is correct
19	Correct	13 ms	12160 KB	Output is correct
20	Correct	15 ms	12160 KB	Output is correct
21	Correct	13 ms	12160 KB	Output is correct
22	Correct	15 ms	12160 KB	Output is correct
23	Correct	14 ms	12160 KB	Output is correct
24	Correct	16 ms	12160 KB	Output is correct
25	Correct	14 ms	12160 KB	Output is correct
26	Correct	17 ms	12288 KB	Output is correct
27	Correct	17 ms	12420 KB	Output is correct
28	Correct	16 ms	12536 KB	Output is correct
29	Correct	17 ms	12416 KB	Output is correct
30	Correct	16 ms	12288 KB	Output is correct
31	Correct	15 ms	12160 KB	Output is correct
32	Correct	16 ms	12416 KB	Output is correct
33	Correct	17 ms	12160 KB	Output is correct
34	Correct	17 ms	12288 KB	Output is correct
35	Correct	19 ms	12288 KB	Output is correct
36	Correct	19 ms	12288 KB	Output is correct
37	Correct	17 ms	12288 KB	Output is correct
38	Correct	13 ms	12160 KB	Output is correct
39	Correct	16 ms	12160 KB	Output is correct
40	Correct	17 ms	12288 KB	Output is correct
41	Correct	17 ms	12288 KB	Output is correct
42	Correct	15 ms	12288 KB	Output is correct
43	Correct	19 ms	12416 KB	Output is correct
44	Correct	16 ms	12160 KB	Output is correct
45	Correct	16 ms	12288 KB	Output is correct
46	Correct	15 ms	12288 KB	Output is correct
47	Correct	14 ms	12160 KB	Output is correct
48	Correct	15 ms	12288 KB	Output is correct
49	Correct	13 ms	12288 KB	Output is correct
50	Correct	19 ms	12288 KB	Output is correct
51	Correct	16 ms	12288 KB	Output is correct
52	Correct	15 ms	12288 KB	Output is correct
53	Correct	15 ms	12288 KB	Output is correct
54	Correct	14 ms	12288 KB	Output is correct
55	Correct	13 ms	12160 KB	Output is correct
56	Correct	112 ms	17780 KB	Output is correct
57	Correct	143 ms	17784 KB	Output is correct
58	Correct	17 ms	12288 KB	Output is correct
59	Correct	16 ms	12160 KB	Output is correct
60	Correct	16 ms	12144 KB	Output is correct
61	Correct	136 ms	17760 KB	Output is correct
62	Correct	15 ms	12288 KB	Output is correct
63	Correct	212 ms	23516 KB	Output is correct
64	Correct	141 ms	17828 KB	Output is correct
65	Correct	17 ms	12336 KB	Output is correct
66	Correct	172 ms	18292 KB	Output is correct
67	Correct	15 ms	12288 KB	Output is correct
68	Correct	15 ms	12288 KB	Output is correct
69	Correct	99 ms	17648 KB	Output is correct
70	Correct	14 ms	12416 KB	Output is correct
71	Correct	138 ms	17668 KB	Output is correct
72	Correct	160 ms	19588 KB	Output is correct
73	Correct	13 ms	12160 KB	Output is correct
74	Correct	155 ms	23804 KB	Output is correct
75	Correct	142 ms	20600 KB	Output is correct
76	Correct	14 ms	12288 KB	Output is correct
77	Correct	15 ms	12288 KB	Output is correct
78	Correct	102 ms	17620 KB	Output is correct
79	Correct	88 ms	18800 KB	Output is correct
80	Correct	16 ms	12288 KB	Output is correct
81	Correct	15 ms	12288 KB	Output is correct
82	Correct	13 ms	12160 KB	Output is correct
83	Correct	12 ms	12160 KB	Output is correct
84	Correct	17 ms	12288 KB	Output is correct
85	Correct	147 ms	18124 KB	Output is correct
86	Correct	16 ms	12288 KB	Output is correct
87	Correct	133 ms	17720 KB	Output is correct
88	Correct	14 ms	12132 KB	Output is correct
89	Correct	195 ms	17644 KB	Output is correct
90	Correct	190 ms	18100 KB	Output is correct
91	Correct	155 ms	18572 KB	Output is correct
92	Correct	105 ms	17648 KB	Output is correct
93	Correct	16 ms	12260 KB	Output is correct
94	Correct	17 ms	12120 KB	Output is correct
95	Correct	105 ms	18672 KB	Output is correct
96	Correct	181 ms	21752 KB	Output is correct
97	Correct	17 ms	12288 KB	Output is correct
98	Correct	14 ms	12160 KB	Output is correct
99	Correct	95 ms	18416 KB	Output is correct
100	Correct	15 ms	12288 KB	Output is correct
101	Correct	155 ms	17728 KB	Output is correct
102	Correct	140 ms	20472 KB	Output is correct
103	Correct	14 ms	12416 KB	Output is correct
104	Correct	15 ms	12416 KB	Output is correct
105	Correct	14 ms	12288 KB	Output is correct
106	Correct	16 ms	12288 KB	Output is correct
107	Correct	19 ms	12288 KB	Output is correct
108	Correct	625 ms	43020 KB	Output is correct
109	Correct	1014 ms	54440 KB	Output is correct
110	Correct	1079 ms	63452 KB	Output is correct
111	Correct	1272 ms	62396 KB	Output is correct
112	Correct	1345 ms	54388 KB	Output is correct
113	Correct	790 ms	45016 KB	Output is correct
114	Correct	908 ms	40136 KB	Output is correct
115	Correct	935 ms	40124 KB	Output is correct
116	Correct	1010 ms	40784 KB	Output is correct
117	Correct	1099 ms	44152 KB	Output is correct
118	Correct	868 ms	39680 KB	Output is correct
119	Correct	1162 ms	44004 KB	Output is correct
120	Correct	1124 ms	55104 KB	Output is correct
121	Correct	1028 ms	44004 KB	Output is correct
122	Correct	1012 ms	42372 KB	Output is correct
123	Correct	708 ms	45352 KB	Output is correct
124	Correct	1095 ms	43244 KB	Output is correct

답안 #105887

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 24.0 / 24.0

Subtask #3 14.0 / 14.0

Subtask #4 22.0 / 22.0

Subtask #5 30.0 / 30.0

Subtask #1
10.0 / 10.0

Subtask #2
24.0 / 24.0

Subtask #3
14.0 / 14.0

Subtask #4
22.0 / 22.0

Subtask #5
30.0 / 30.0