oj.uz

Submission #604445

# Submission time Handle Problem Language Result Execution time Memory
604445 2022-07-25T06:37:37 Z temporary_juggernaut Mergers (JOI19_mergers) C++14
100 / 100
 1696 ms 176640 KB 
#include<bits/stdc++.h>
#define fr first
#define sc second
using namespace std;
typedef long long ll;
typedef long double ld;
template<class T>void umax(T &a,T b){if(a<b)a=b;}
template<class T>void umin(T &a,T b){if(b<a)a=b;}
#ifdef juggernaut
    #define printl(args...) printf(args)
#else
    #define printl(args...) 0
#endif
int n,k;
vector<int>g[500005];
int sz[500005];
int gp[500005];
set<int>st[500005];
int pivot[500005];
int sub[500005];
void add(int a,int b){
	if(st[a].size()<st[b].size()){
		swap(st[a],st[b]);
		swap(pivot[a],pivot[b]);
	}
	for(int to:st[b]){
		if(!st[a].count(to)){
			st[a].insert(to);
			pivot[a]+=sz[to];
		}
	}
	st[b].clear();
}
int tot;
int sweet[500005];
map<int,int>mp[500005];
void dfs(int v,int p){
	pivot[v]=sz[gp[v]];
	sub[v]=1;
	st[v].insert(gp[v]);
	for(int to:g[v])if(to^p){
		dfs(to,v);
		if(sub[to]==pivot[to]){
			mp[v][to]=true;
			sweet[v]++;
			tot++;
		}
		sweet[v]+=sweet[to];
		add(v,to);
		sub[v]+=sub[to];
	}
}
int ans;
void go(int v,int p){
	for(int to:g[v])if(to^p){
		go(to,v);
		if(mp[v][to]){
			if(sweet[to]>0&&tot-sweet[to]-1>0){
				ans--;
			}
		}
	}
}
int main(){
	scanf("%d%d",&n,&k);
	for(int i=1;i^n;i++){
		int x,y;
		scanf("%d%d",&x,&y);
		g[x].push_back(y);
		g[y].push_back(x);
	}
	for(int i=1;i<=n;i++){
		scanf("%d",&gp[i]);
		sz[gp[i]]++;
	}
	dfs(1,1);
	ans=tot;
	go(1,1);
	cout<<(ans+1>>1);
}

Compilation message

mergers.cpp: In function 'int main()':
mergers.cpp:79:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   79 |  cout<<(ans+1>>1);
      |         ~~~^~
mergers.cpp:65:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |  scanf("%d%d",&n,&k);
      |  ~~~~~^~~~~~~~~~~~~~
mergers.cpp:68:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |   scanf("%d%d",&x,&y);
      |   ~~~~~^~~~~~~~~~~~~~
mergers.cpp:73:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |   scanf("%d",&gp[i]);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 58980 KB Output is correct
2 Correct 27 ms 58964 KB Output is correct
3 Correct 28 ms 59016 KB Output is correct
4 Correct 27 ms 59012 KB Output is correct
5 Correct 27 ms 59000 KB Output is correct
6 Correct 28 ms 58952 KB Output is correct
7 Correct 29 ms 58956 KB Output is correct
8 Correct 27 ms 58964 KB Output is correct
9 Correct 30 ms 59016 KB Output is correct
10 Correct 27 ms 58948 KB Output is correct
11 Correct 31 ms 58996 KB Output is correct
12 Correct 28 ms 58988 KB Output is correct
13 Correct 26 ms 58968 KB Output is correct
14 Correct 33 ms 59036 KB Output is correct
15 Correct 32 ms 59048 KB Output is correct
16 Correct 30 ms 58936 KB Output is correct
17 Correct 28 ms 58952 KB Output is correct
18 Correct 26 ms 58964 KB Output is correct
19 Correct 26 ms 58964 KB Output is correct
20 Correct 27 ms 59020 KB Output is correct
21 Correct 26 ms 58964 KB Output is correct
22 Correct 26 ms 59004 KB Output is correct
23 Correct 27 ms 58956 KB Output is correct
24 Correct 30 ms 58952 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 58980 KB Output is correct
2 Correct 27 ms 58964 KB Output is correct
3 Correct 28 ms 59016 KB Output is correct
4 Correct 27 ms 59012 KB Output is correct
5 Correct 27 ms 59000 KB Output is correct
6 Correct 28 ms 58952 KB Output is correct
7 Correct 29 ms 58956 KB Output is correct
8 Correct 27 ms 58964 KB Output is correct
9 Correct 30 ms 59016 KB Output is correct
10 Correct 27 ms 58948 KB Output is correct
11 Correct 31 ms 58996 KB Output is correct
12 Correct 28 ms 58988 KB Output is correct
13 Correct 26 ms 58968 KB Output is correct
14 Correct 33 ms 59036 KB Output is correct
15 Correct 32 ms 59048 KB Output is correct
16 Correct 30 ms 58936 KB Output is correct
17 Correct 28 ms 58952 KB Output is correct
18 Correct 26 ms 58964 KB Output is correct
19 Correct 26 ms 58964 KB Output is correct
20 Correct 27 ms 59020 KB Output is correct
21 Correct 26 ms 58964 KB Output is correct
22 Correct 26 ms 59004 KB Output is correct
23 Correct 27 ms 58956 KB Output is correct
24 Correct 30 ms 58952 KB Output is correct
25 Correct 33 ms 58964 KB Output is correct
26 Correct 33 ms 59388 KB Output is correct
27 Correct 29 ms 59348 KB Output is correct
28 Correct 29 ms 59568 KB Output is correct
29 Correct 30 ms 59476 KB Output is correct
30 Correct 31 ms 59248 KB Output is correct
31 Correct 28 ms 59036 KB Output is correct
32 Correct 30 ms 59704 KB Output is correct
33 Correct 31 ms 59048 KB Output is correct
34 Correct 28 ms 59348 KB Output is correct
35 Correct 34 ms 59508 KB Output is correct
36 Correct 29 ms 59220 KB Output is correct
37 Correct 29 ms 59400 KB Output is correct
38 Correct 27 ms 58944 KB Output is correct
39 Correct 30 ms 59348 KB Output is correct
40 Correct 32 ms 59296 KB Output is correct
41 Correct 34 ms 59276 KB Output is correct
42 Correct 30 ms 59320 KB Output is correct
43 Correct 30 ms 59656 KB Output is correct
44 Correct 27 ms 58968 KB Output is correct
45 Correct 30 ms 59520 KB Output is correct
46 Correct 29 ms 59376 KB Output is correct
47 Correct 26 ms 59012 KB Output is correct
48 Correct 28 ms 59364 KB Output is correct
49 Correct 29 ms 59476 KB Output is correct
50 Correct 29 ms 59608 KB Output is correct
51 Correct 30 ms 59348 KB Output is correct
52 Correct 32 ms 59320 KB Output is correct
53 Correct 31 ms 59368 KB Output is correct
54 Correct 28 ms 59236 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 58980 KB Output is correct
2 Correct 27 ms 58964 KB Output is correct
3 Correct 28 ms 59016 KB Output is correct
4 Correct 27 ms 59012 KB Output is correct
5 Correct 27 ms 59000 KB Output is correct
6 Correct 28 ms 58952 KB Output is correct
7 Correct 29 ms 58956 KB Output is correct
8 Correct 27 ms 58964 KB Output is correct
9 Correct 30 ms 59016 KB Output is correct
10 Correct 27 ms 58948 KB Output is correct
11 Correct 31 ms 58996 KB Output is correct
12 Correct 28 ms 58988 KB Output is correct
13 Correct 26 ms 58968 KB Output is correct
14 Correct 33 ms 59036 KB Output is correct
15 Correct 32 ms 59048 KB Output is correct
16 Correct 30 ms 58936 KB Output is correct
17 Correct 28 ms 58952 KB Output is correct
18 Correct 26 ms 58964 KB Output is correct
19 Correct 26 ms 58964 KB Output is correct
20 Correct 27 ms 59020 KB Output is correct
21 Correct 26 ms 58964 KB Output is correct
22 Correct 26 ms 59004 KB Output is correct
23 Correct 27 ms 58956 KB Output is correct
24 Correct 30 ms 58952 KB Output is correct
25 Correct 35 ms 58976 KB Output is correct
26 Correct 118 ms 68336 KB Output is correct
27 Correct 124 ms 68536 KB Output is correct
28 Correct 28 ms 59348 KB Output is correct
29 Correct 27 ms 59044 KB Output is correct
30 Correct 30 ms 59024 KB Output is correct
31 Correct 121 ms 68560 KB Output is correct
32 Correct 28 ms 59280 KB Output is correct
33 Correct 157 ms 79992 KB Output is correct
34 Correct 130 ms 68532 KB Output is correct
35 Correct 27 ms 59220 KB Output is correct
36 Correct 125 ms 69776 KB Output is correct
37 Correct 29 ms 59288 KB Output is correct
38 Correct 33 ms 59244 KB Output is correct
39 Correct 107 ms 68408 KB Output is correct
40 Correct 28 ms 59648 KB Output is correct
41 Correct 112 ms 68492 KB Output is correct
42 Correct 163 ms 72304 KB Output is correct
43 Correct 29 ms 59016 KB Output is correct
44 Correct 128 ms 80464 KB Output is correct
45 Correct 132 ms 74460 KB Output is correct
46 Correct 28 ms 59332 KB Output is correct
47 Correct 31 ms 59308 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 68368 KB Output is correct
2 Correct 201 ms 73512 KB Output is correct
3 Correct 42 ms 59356 KB Output is correct
4 Correct 29 ms 59232 KB Output is correct
5 Correct 26 ms 58976 KB Output is correct
6 Correct 34 ms 58972 KB Output is correct
7 Correct 30 ms 59220 KB Output is correct
8 Correct 181 ms 70984 KB Output is correct
9 Correct 29 ms 59276 KB Output is correct
10 Correct 123 ms 68588 KB Output is correct
11 Correct 30 ms 58944 KB Output is correct
12 Correct 186 ms 68484 KB Output is correct
13 Correct 230 ms 71028 KB Output is correct
14 Correct 214 ms 74520 KB Output is correct
15 Correct 121 ms 68448 KB Output is correct
16 Correct 31 ms 59348 KB Output is correct
17 Correct 29 ms 58964 KB Output is correct
18 Correct 254 ms 72900 KB Output is correct
19 Correct 192 ms 82236 KB Output is correct
20 Correct 35 ms 59532 KB Output is correct
21 Correct 30 ms 59060 KB Output is correct
22 Correct 217 ms 70880 KB Output is correct
23 Correct 29 ms 59340 KB Output is correct
24 Correct 145 ms 68948 KB Output is correct
25 Correct 260 ms 79244 KB Output is correct
26 Correct 36 ms 59412 KB Output is correct
27 Correct 32 ms 59648 KB Output is correct
28 Correct 31 ms 59248 KB Output is correct
29 Correct 30 ms 59328 KB Output is correct
30 Correct 37 ms 59384 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 58980 KB Output is correct
2 Correct 27 ms 58964 KB Output is correct
3 Correct 28 ms 59016 KB Output is correct
4 Correct 27 ms 59012 KB Output is correct
5 Correct 27 ms 59000 KB Output is correct
6 Correct 28 ms 58952 KB Output is correct
7 Correct 29 ms 58956 KB Output is correct
8 Correct 27 ms 58964 KB Output is correct
9 Correct 30 ms 59016 KB Output is correct
10 Correct 27 ms 58948 KB Output is correct
11 Correct 31 ms 58996 KB Output is correct
12 Correct 28 ms 58988 KB Output is correct
13 Correct 26 ms 58968 KB Output is correct
14 Correct 33 ms 59036 KB Output is correct
15 Correct 32 ms 59048 KB Output is correct
16 Correct 30 ms 58936 KB Output is correct
17 Correct 28 ms 58952 KB Output is correct
18 Correct 26 ms 58964 KB Output is correct
19 Correct 26 ms 58964 KB Output is correct
20 Correct 27 ms 59020 KB Output is correct
21 Correct 26 ms 58964 KB Output is correct
22 Correct 26 ms 59004 KB Output is correct
23 Correct 27 ms 58956 KB Output is correct
24 Correct 30 ms 58952 KB Output is correct
25 Correct 33 ms 58964 KB Output is correct
26 Correct 33 ms 59388 KB Output is correct
27 Correct 29 ms 59348 KB Output is correct
28 Correct 29 ms 59568 KB Output is correct
29 Correct 30 ms 59476 KB Output is correct
30 Correct 31 ms 59248 KB Output is correct
31 Correct 28 ms 59036 KB Output is correct
32 Correct 30 ms 59704 KB Output is correct
33 Correct 31 ms 59048 KB Output is correct
34 Correct 28 ms 59348 KB Output is correct
35 Correct 34 ms 59508 KB Output is correct
36 Correct 29 ms 59220 KB Output is correct
37 Correct 29 ms 59400 KB Output is correct
38 Correct 27 ms 58944 KB Output is correct
39 Correct 30 ms 59348 KB Output is correct
40 Correct 32 ms 59296 KB Output is correct
41 Correct 34 ms 59276 KB Output is correct
42 Correct 30 ms 59320 KB Output is correct
43 Correct 30 ms 59656 KB Output is correct
44 Correct 27 ms 58968 KB Output is correct
45 Correct 30 ms 59520 KB Output is correct
46 Correct 29 ms 59376 KB Output is correct
47 Correct 26 ms 59012 KB Output is correct
48 Correct 28 ms 59364 KB Output is correct
49 Correct 29 ms 59476 KB Output is correct
50 Correct 29 ms 59608 KB Output is correct
51 Correct 30 ms 59348 KB Output is correct
52 Correct 32 ms 59320 KB Output is correct
53 Correct 31 ms 59368 KB Output is correct
54 Correct 28 ms 59236 KB Output is correct
55 Correct 35 ms 58976 KB Output is correct
56 Correct 118 ms 68336 KB Output is correct
57 Correct 124 ms 68536 KB Output is correct
58 Correct 28 ms 59348 KB Output is correct
59 Correct 27 ms 59044 KB Output is correct
60 Correct 30 ms 59024 KB Output is correct
61 Correct 121 ms 68560 KB Output is correct
62 Correct 28 ms 59280 KB Output is correct
63 Correct 157 ms 79992 KB Output is correct
64 Correct 130 ms 68532 KB Output is correct
65 Correct 27 ms 59220 KB Output is correct
66 Correct 125 ms 69776 KB Output is correct
67 Correct 29 ms 59288 KB Output is correct
68 Correct 33 ms 59244 KB Output is correct
69 Correct 107 ms 68408 KB Output is correct
70 Correct 28 ms 59648 KB Output is correct
71 Correct 112 ms 68492 KB Output is correct
72 Correct 163 ms 72304 KB Output is correct
73 Correct 29 ms 59016 KB Output is correct
74 Correct 128 ms 80464 KB Output is correct
75 Correct 132 ms 74460 KB Output is correct
76 Correct 28 ms 59332 KB Output is correct
77 Correct 31 ms 59308 KB Output is correct
78 Correct 113 ms 68368 KB Output is correct
79 Correct 201 ms 73512 KB Output is correct
80 Correct 42 ms 59356 KB Output is correct
81 Correct 29 ms 59232 KB Output is correct
82 Correct 26 ms 58976 KB Output is correct
83 Correct 34 ms 58972 KB Output is correct
84 Correct 30 ms 59220 KB Output is correct
85 Correct 181 ms 70984 KB Output is correct
86 Correct 29 ms 59276 KB Output is correct
87 Correct 123 ms 68588 KB Output is correct
88 Correct 30 ms 58944 KB Output is correct
89 Correct 186 ms 68484 KB Output is correct
90 Correct 230 ms 71028 KB Output is correct
91 Correct 214 ms 74520 KB Output is correct
92 Correct 121 ms 68448 KB Output is correct
93 Correct 31 ms 59348 KB Output is correct
94 Correct 29 ms 58964 KB Output is correct
95 Correct 254 ms 72900 KB Output is correct
96 Correct 192 ms 82236 KB Output is correct
97 Correct 35 ms 59532 KB Output is correct
98 Correct 30 ms 59060 KB Output is correct
99 Correct 217 ms 70880 KB Output is correct
100 Correct 29 ms 59340 KB Output is correct
101 Correct 145 ms 68948 KB Output is correct
102 Correct 260 ms 79244 KB Output is correct
103 Correct 36 ms 59412 KB Output is correct
104 Correct 32 ms 59648 KB Output is correct
105 Correct 31 ms 59248 KB Output is correct
106 Correct 30 ms 59328 KB Output is correct
107 Correct 37 ms 59384 KB Output is correct
108 Correct 1173 ms 116116 KB Output is correct
109 Correct 900 ms 135672 KB Output is correct
110 Correct 879 ms 153700 KB Output is correct
111 Correct 1397 ms 176640 KB Output is correct
112 Correct 1349 ms 153620 KB Output is correct
113 Correct 1507 ms 128780 KB Output is correct
114 Correct 680 ms 106600 KB Output is correct
115 Correct 694 ms 106496 KB Output is correct
116 Correct 966 ms 111600 KB Output is correct
117 Correct 1372 ms 133920 KB Output is correct
118 Correct 810 ms 105632 KB Output is correct
119 Correct 1367 ms 132280 KB Output is correct
120 Correct 1367 ms 160644 KB Output is correct
121 Correct 1373 ms 132712 KB Output is correct
122 Correct 1274 ms 121676 KB Output is correct
123 Correct 1696 ms 131456 KB Output is correct
124 Correct 1272 ms 130536 KB Output is correct