#pragma GCC optimize("Ofast,unroll-loops")
#include<bits/stdc++.h>
//#define int long long
//#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".ans","w",stdout)
#define pb push_back
#define checktime cerr << (double)clock() / CLOCKS_PER_SEC * 1000 << " ms";
using namespace std;
#define getchar_unlocked getchar
inline int scan()
{
char c = getchar_unlocked();
int x = 0;
while(c<'0'||c>'9')
{
c=getchar_unlocked();
}
while(c>='0'&&c<='9')
{
x=(x<<1)+(x<<3)+c-'0';
c=getchar_unlocked();
}
return x;
}
void phongbeo();
const int inf=1e9;
const int mod2=1e9+9;
const int mod1=998244353;
struct icd
{
long double a;
int b;
};
struct ib
{
int a;
int b;
};
struct ic
{
int a,b,c;
};
struct id
{
int a,b,c,d;
};
struct ie
{
int a,b,c,d,e;
};
int n,m,s1,s2,s4,s3,sf,k,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,s33,dem3,dem4,l,r,mid,l2,r2,center;
int i,s10,s12;
int kk;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
fin(task),fou(task);
#endif
NHP
/// cin>>s1;
///modwwe
phongbeo();
//checktime
}
int st[17][100001];
int tin[100001];
int ou[100001];
int depth[100001];
bool c[100001];
bool b[100001];
int d[100001];
vector<int> v[100001];
ib a[100001];
int f[100001];
void dfs(int x,int y)
{
st[0][x]=y;
tin[x]=++dem;
depth[x]=depth[y]+1;
for(auto f:v[x])
if(f!=y)
dfs(f,x);
ou[x]=dem;
}
struct fenwick
{
int bit[100001];
void upd(int x,int y,int z)
{
for(x; x<=n; x+=x&-x)
bit[x]+=z;
x=y;
z=-z;
for(x; x<=n; x+=x&-x)
bit[x]+=z;
}
int get(int x)
{
int s=0;
for(x; x; x-=x&-x) s+=bit[x];
return s;
}
} fen;
void phongbeo()
{
cin>>n>>m>>k;
for(int i=1; i<n; i++)
cin>>l>>r,v[l].pb(r),v[r].pb(l),a[i]= {l,r};
dfs(1,0);
for(int i=1; i<17; i++)
for(int j=1; j<=n; j++)
st[i][j]=st[i-1][st[i-1][j]];
for(int i=1; i<n; i++)
if(st[0][a[i].a]!=a[i].b) swap(a[i].a,a[i].b);
while(m--)
{
cin>>l;
l=a[l].a;
b[l]=1-b[l];
if(b[l])
{
s2=l;
fen.upd(tin[l],ou[l]+1,1);
for(int i=16; i>=0; --i)
if(fen.get(tin[l])-fen.get(tin[st[i][s2]])==depth[l]-depth[st[i][s2]])
s2=st[i][s2];
if(!c[l])
d[s2]++,f[s2]++,c[l]=1;
d[s2]+=f[l];
f[s2]+=f[l];
f[l]=0;
}
else
{
s2=l;
for(int i=16; i>=0; --i)
if(fen.get(tin[l])-fen.get(tin[st[i][s2]])==depth[l]-depth[st[i][s2]])
s2=st[i][s2];
fen.upd(tin[l],ou[l]+1,-1);
d[l]=max(d[l],d[s2]);
}
}
for(int i=1; i<=k; i++)
{
cin>>l;
if(b[l])
{
s2=l;
for(int i=16; i>=0; --i)
if(fen.get(tin[l])-fen.get(tin[st[i][s2]])==depth[l]-depth[st[i][s2]])
s2=st[i][s2];
d[l]=max(d[l],d[s2]);
fen.upd(tin[l],ou[l]+1,-1);
}
cout<<d[l]+1,down
}
}
Compilation message
synchronization.cpp:67:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
67 | main()
| ^~~~
synchronization.cpp: In member function 'void fenwick::upd(int, int, int)':
synchronization.cpp:103:13: warning: statement has no effect [-Wunused-value]
103 | for(x; x<=n; x+=x&-x)
| ^
synchronization.cpp:107:13: warning: statement has no effect [-Wunused-value]
107 | for(x; x<=n; x+=x&-x)
| ^
synchronization.cpp: In member function 'int fenwick::get(int)':
synchronization.cpp:113:13: warning: statement has no effect [-Wunused-value]
113 | for(x; x; x-=x&-x) s+=bit[x];
| ^
synchronization.cpp: In function 'int main()':
synchronization.cpp:12:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
12 | #define fin(x) freopen(x".inp","r",stdin)
| ~~~~~~~^~~~~~~~~~~~~~~~~~~
synchronization.cpp:70:4: note: in expansion of macro 'fin'
70 | fin(task),fou(task);
| ^~~
synchronization.cpp:13:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
13 | #define fou(x) freopen(x".ans","w",stdout)
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~
synchronization.cpp:70:14: note: in expansion of macro 'fou'
70 | fin(task),fou(task);
| ^~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
3 ms |
2648 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
2 ms |
2652 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
3 ms |
2652 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
3 ms |
2652 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
3 ms |
2648 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
