oj.uz

Submission #466966

# Submission time Handle Problem Language Result Execution time Memory
466966 2021-08-21T05:32:47 Z jamezzz Unique Cities (JOI19_ho_t5) C++17
100 / 100
 426 ms 41528 KB 
#include <bits/stdc++.h>
using namespace std;

#ifdef DEBUG
#define dbg(...) printf(__VA_ARGS__);
#else
#define dbg(...)
#endif
#define sf scanf
#define pf printf
#define fi first
#define se second
#define pb emplace_back
#define ppb pop_back
#define sz(x) (int)x.size()
#define mnto(x,y) x=min(x,(__typeof__(x))y)
#define mxto(x,y) x=max(x,(__typeof__(x))y)
#define INF 1023456789
#define LINF 1023456789123456789
#define all(x) x.begin(), x.end()
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<pll> vll;
mt19937 rng(time(0));

#define maxn 200005

int n,m,rt=1,a,b,c[maxn],num[maxn],ans[maxn],d[maxn],f[maxn],l[maxn][2],cnt;
vi s,AL[maxn];

void dfs1(int u,int p){ //find furthest
	for(int v:AL[u]){
		if(v==p)continue;
		d[v]=d[u]+1;
		if(d[v]>d[rt])rt=v;
		dfs1(v,u);
	}
}

void dfs2(int u,int p){ //find heavy child
	l[u][0]=l[u][1]=0;
	for(int v:AL[u]){
		if(v==p)continue;
		d[v]=d[u]+1;
		dfs2(v,u);
		if(f[v]>f[l[u][1]])l[u][1]=v;
		if(f[l[u][1]]>f[l[u][0]])swap(l[u][0],l[u][1]);
	}
	f[u]=f[l[u][0]]+1;
}

void add(int i){
	if(num[c[i]]==0)++cnt;
	++num[c[i]];
}

void rem(int i){
	if(num[c[i]]==1)--cnt;
	--num[c[i]];
}

void dfs3(int u,int p){
	if(p)add(p),s.pb(p);
	if(l[u][0]){
		while(!s.empty()&&d[s.back()]>=d[u]-f[l[u][1]]){
			rem(s.back());s.ppb();
		}
		dfs3(l[u][0],u);
	}
	while(!s.empty()&&d[s.back()]>=d[u]-f[l[u][0]]){
		rem(s.back());s.ppb();
	}
	for(int v:AL[u]){
		if(v!=p&&v!=l[u][0])dfs3(v,u);
	}
	mxto(ans[u],cnt);
	if(!s.empty()&&s.back()==p){
		rem(s.back());s.ppb();
	}
	
}

void idk(int x){
	d[x]=0;
	dfs1(x,0);
	d[rt]=0;
	dfs2(rt,0);
	cnt=0;s.clear();
	for(int i=1;i<=n;++i)num[i]=0;
	dfs3(rt,0);
}

int main(){
	sf("%d%d",&n,&m);
	for(int i=1;i<n;++i){
		sf("%d%d",&a,&b);
		AL[a].pb(b);AL[b].pb(a);
	}
	for(int i=1;i<=n;++i){
		sf("%d",&c[i]);
	}
	idk(1);idk(rt);
	for(int i=1;i<=n;++i){
		pf("%d\n",ans[i]);
	}
}

Compilation message

joi2019_ho_t5.cpp: In function 'int main()':
joi2019_ho_t5.cpp:100:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  100 |  sf("%d%d",&n,&m);
      |    ^
joi2019_ho_t5.cpp:102:5: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  102 |   sf("%d%d",&a,&b);
      |     ^
joi2019_ho_t5.cpp:106:5: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  106 |   sf("%d",&c[i]);
      |     ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 5 ms 5068 KB Output is correct
3 Correct 4 ms 5068 KB Output is correct
4 Correct 5 ms 5196 KB Output is correct
5 Correct 5 ms 5068 KB Output is correct
6 Correct 5 ms 5324 KB Output is correct
7 Correct 5 ms 5196 KB Output is correct
8 Correct 7 ms 5068 KB Output is correct
9 Correct 5 ms 5196 KB Output is correct
10 Correct 5 ms 5196 KB Output is correct
11 Correct 5 ms 5068 KB Output is correct
12 Correct 4 ms 5068 KB Output is correct
13 Correct 5 ms 5276 KB Output is correct
14 Correct 5 ms 5196 KB Output is correct
15 Correct 5 ms 5196 KB Output is correct
16 Correct 4 ms 5068 KB Output is correct
17 Correct 5 ms 5196 KB Output is correct
18 Correct 5 ms 5196 KB Output is correct
19 Correct 5 ms 5068 KB Output is correct
20 Correct 5 ms 5280 KB Output is correct
21 Correct 5 ms 5180 KB Output is correct
22 Correct 4 ms 5068 KB Output is correct
23 Correct 5 ms 5180 KB Output is correct
24 Correct 5 ms 5196 KB Output is correct
25 Correct 5 ms 5068 KB Output is correct
26 Correct 4 ms 5152 KB Output is correct
27 Correct 5 ms 5324 KB Output is correct
28 Correct 5 ms 5196 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 4 ms 5148 KB Output is correct
31 Correct 5 ms 5324 KB Output is correct
32 Correct 5 ms 5280 KB Output is correct

Subtask #2
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 165 ms 13652 KB Output is correct
2 Correct 186 ms 24952 KB Output is correct
3 Correct 36 ms 8468 KB Output is correct
4 Correct 390 ms 20240 KB Output is correct
5 Correct 405 ms 39684 KB Output is correct
6 Correct 418 ms 29772 KB Output is correct
7 Correct 342 ms 20344 KB Output is correct
8 Correct 368 ms 22048 KB Output is correct
9 Correct 360 ms 21436 KB Output is correct
10 Correct 362 ms 21372 KB Output is correct
11 Correct 201 ms 20904 KB Output is correct
12 Correct 397 ms 32192 KB Output is correct
13 Correct 331 ms 29620 KB Output is correct
14 Correct 348 ms 29108 KB Output is correct
15 Correct 177 ms 20848 KB Output is correct
16 Correct 346 ms 33496 KB Output is correct
17 Correct 345 ms 29892 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 252 ms 17564 KB Output is correct
2 Correct 383 ms 39860 KB Output is correct
3 Correct 35 ms 9028 KB Output is correct
4 Correct 354 ms 21076 KB Output is correct
5 Correct 393 ms 41528 KB Output is correct
6 Correct 388 ms 30984 KB Output is correct
7 Correct 339 ms 21060 KB Output is correct
8 Correct 356 ms 25144 KB Output is correct
9 Correct 357 ms 23756 KB Output is correct
10 Correct 353 ms 22660 KB Output is correct
11 Correct 291 ms 21376 KB Output is correct
12 Correct 385 ms 37284 KB Output is correct
13 Correct 346 ms 29632 KB Output is correct
14 Correct 354 ms 30040 KB Output is correct
15 Correct 207 ms 21732 KB Output is correct
16 Correct 330 ms 34868 KB Output is correct
17 Correct 361 ms 31100 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 5 ms 5068 KB Output is correct
3 Correct 4 ms 5068 KB Output is correct
4 Correct 5 ms 5196 KB Output is correct
5 Correct 5 ms 5068 KB Output is correct
6 Correct 5 ms 5324 KB Output is correct
7 Correct 5 ms 5196 KB Output is correct
8 Correct 7 ms 5068 KB Output is correct
9 Correct 5 ms 5196 KB Output is correct
10 Correct 5 ms 5196 KB Output is correct
11 Correct 5 ms 5068 KB Output is correct
12 Correct 4 ms 5068 KB Output is correct
13 Correct 5 ms 5276 KB Output is correct
14 Correct 5 ms 5196 KB Output is correct
15 Correct 5 ms 5196 KB Output is correct
16 Correct 4 ms 5068 KB Output is correct
17 Correct 5 ms 5196 KB Output is correct
18 Correct 5 ms 5196 KB Output is correct
19 Correct 5 ms 5068 KB Output is correct
20 Correct 5 ms 5280 KB Output is correct
21 Correct 5 ms 5180 KB Output is correct
22 Correct 4 ms 5068 KB Output is correct
23 Correct 5 ms 5180 KB Output is correct
24 Correct 5 ms 5196 KB Output is correct
25 Correct 5 ms 5068 KB Output is correct
26 Correct 4 ms 5152 KB Output is correct
27 Correct 5 ms 5324 KB Output is correct
28 Correct 5 ms 5196 KB Output is correct
29 Correct 5 ms 5196 KB Output is correct
30 Correct 4 ms 5148 KB Output is correct
31 Correct 5 ms 5324 KB Output is correct
32 Correct 5 ms 5280 KB Output is correct
33 Correct 165 ms 13652 KB Output is correct
34 Correct 186 ms 24952 KB Output is correct
35 Correct 36 ms 8468 KB Output is correct
36 Correct 390 ms 20240 KB Output is correct
37 Correct 405 ms 39684 KB Output is correct
38 Correct 418 ms 29772 KB Output is correct
39 Correct 342 ms 20344 KB Output is correct
40 Correct 368 ms 22048 KB Output is correct
41 Correct 360 ms 21436 KB Output is correct
42 Correct 362 ms 21372 KB Output is correct
43 Correct 201 ms 20904 KB Output is correct
44 Correct 397 ms 32192 KB Output is correct
45 Correct 331 ms 29620 KB Output is correct
46 Correct 348 ms 29108 KB Output is correct
47 Correct 177 ms 20848 KB Output is correct
48 Correct 346 ms 33496 KB Output is correct
49 Correct 345 ms 29892 KB Output is correct
50 Correct 252 ms 17564 KB Output is correct
51 Correct 383 ms 39860 KB Output is correct
52 Correct 35 ms 9028 KB Output is correct
53 Correct 354 ms 21076 KB Output is correct
54 Correct 393 ms 41528 KB Output is correct
55 Correct 388 ms 30984 KB Output is correct
56 Correct 339 ms 21060 KB Output is correct
57 Correct 356 ms 25144 KB Output is correct
58 Correct 357 ms 23756 KB Output is correct
59 Correct 353 ms 22660 KB Output is correct
60 Correct 291 ms 21376 KB Output is correct
61 Correct 385 ms 37284 KB Output is correct
62 Correct 346 ms 29632 KB Output is correct
63 Correct 354 ms 30040 KB Output is correct
64 Correct 207 ms 21732 KB Output is correct
65 Correct 330 ms 34868 KB Output is correct
66 Correct 361 ms 31100 KB Output is correct
67 Correct 28 ms 7080 KB Output is correct
68 Correct 127 ms 20604 KB Output is correct
69 Correct 234 ms 20856 KB Output is correct
70 Correct 384 ms 20236 KB Output is correct
71 Correct 395 ms 39728 KB Output is correct
72 Correct 426 ms 29772 KB Output is correct
73 Correct 368 ms 20292 KB Output is correct
74 Correct 374 ms 23744 KB Output is correct
75 Correct 346 ms 21900 KB Output is correct
76 Correct 341 ms 21568 KB Output is correct
77 Correct 277 ms 20496 KB Output is correct
78 Correct 376 ms 34268 KB Output is correct
79 Correct 357 ms 32280 KB Output is correct
80 Correct 342 ms 27884 KB Output is correct
81 Correct 176 ms 20616 KB Output is correct
82 Correct 360 ms 33444 KB Output is correct
83 Correct 331 ms 29912 KB Output is correct
84 Correct 342 ms 20420 KB Output is correct
85 Correct 395 ms 40560 KB Output is correct
86 Correct 361 ms 30184 KB Output is correct
87 Correct 329 ms 20364 KB Output is correct
88 Correct 361 ms 24496 KB Output is correct
89 Correct 347 ms 22604 KB Output is correct
90 Correct 340 ms 22108 KB Output is correct
91 Correct 274 ms 20860 KB Output is correct
92 Correct 391 ms 39660 KB Output is correct
93 Correct 348 ms 27256 KB Output is correct
94 Correct 361 ms 25412 KB Output is correct
95 Correct 179 ms 21004 KB Output is correct
96 Correct 353 ms 34132 KB Output is correct
97 Correct 369 ms 30392 KB Output is correct
98 Correct 357 ms 21084 KB Output is correct
99 Correct 413 ms 40840 KB Output is correct
100 Correct 402 ms 30868 KB Output is correct
101 Correct 323 ms 20952 KB Output is correct
102 Correct 366 ms 24124 KB Output is correct
103 Correct 348 ms 22724 KB Output is correct
104 Correct 347 ms 22340 KB Output is correct
105 Correct 270 ms 21192 KB Output is correct
106 Correct 399 ms 32356 KB Output is correct
107 Correct 384 ms 32696 KB Output is correct
108 Correct 396 ms 27028 KB Output is correct
109 Correct 186 ms 21688 KB Output is correct
110 Correct 374 ms 34800 KB Output is correct
111 Correct 338 ms 30984 KB Output is correct