oj.uz

Submission #1077523

# Submission time Handle Problem Language Result Execution time Memory
1077523 2024-08-27T07:50:57 Z BABY_GANGSTER Jail (JOI22_jail) C++14
49 / 100
 5000 ms 811184 KB 
#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;
void phongbeo();
const int inf=1e9;
const int mod2=1e9+7;
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;
int  i,s10,s12;
int kk;
int el=29;
#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;
}
main()
{
#ifndef ONLINE_JUDGE
//fin(task),fou(task);
#endif
    NHP
    /// cin>>s1;
   int xx=scan();
  //  modwwe
  while(xx--)
    phongbeo(),down
//checktime
}
int st[17][120007];
int depth[120007];
int head[120007];
int pos[120007];
vector<int> v2[120007];
vector<ib> v[480007][2];
int heavy[120007];
ib a[120007];
int f[120007];
int sz[120007];
int mxz[120007];
int c[480007][2];
void dfs(int x,int y)
{
    sz[x]=1;
    mxz[x]=0;
    st[0][x]=y;
    depth[x]=depth[y]+1;
    for(auto f:v2[x])
    {
        if(f!=y)
        {
            dfs(f,x);
            sz[x]+=sz[f];
            if(sz[f]>sz[x])
                heavy[x]=f,mxz[x]=sz[f];
        }
    }
}

int lca2(int x,int y)
{
    if(depth[x]<depth[y]) swap(x,y);
    int ss=depth[x]-depth[y]-1;
    if(ss>=0)
        for(int j=0; j<17; ++j)
            if(bit(ss,j))
                x=st[j][x];
    if(st[0][x]==y) return x;
    if(ss!=-1)  x=st[0][x];
    for(int j=16; j>=0; --j)
        if(st[j][x]!=st[j][y])
            x=st[j][x],y=st[j][y];
    return x;
}
int lca(int x,int y)
{
    if(depth[x]<depth[y]) swap(x,y);
    int ss=depth[x]-depth[y];
    for(int j=0; j<17; ++j)
        if(bit(ss,j))
            x=st[j][x];
    if(x==y) return x;
    for(int j=16; j>=0; --j)
        if(st[j][x]!=st[j][y])
            x=st[j][x],y=st[j][y];
    return st[0][x];
}
void des(int x,int y)
{
    head[x]=y;
    pos[x]=++dem;
    if(heavy[x]!=0)
        des(heavy[x],y);
    for(auto f:v2[x])
        if(pos[f]==0)
            des(f,f);
}
struct IT
{
    void setup(int node,int l,int r)
    {
  //  cout<<node<<" "<<l<<" "<<r,debug
            if(node!=1)v[node>>1][0].pb({node,0});
        if(node!=1) v[node][1].pb({node>>1,1});
        if(l==r)
        {
            f[l]=node;
            return;
        }
        int mid=l+r>>1;
        setup(node<<1,l,mid);
        setup(node<<1|1,mid+1,r);
    }
    void upd(int node,int l,int r,int l1,int r1,int x)
    {
        if(l>r1||r<l1) return;
        if(l>=l1&&r<=r1)
        {
            v[x][0].pb({node,0});
         //   if(x==5) cout<<node,debug
            return;
        }
        int mid=l+r>>1;
        upd(node<<1,l,mid,l1,r1,x);
        upd(node<<1|1,mid+1,r,l1,r1,x);

    }
    void upd2(int node,int l,int r,int l1,int r1,int x)
 {
       if(l>r1||r<l1) return;
        if(l>=l1&&r<=r1)
        {
            v[node][1].pb({x,0});
            ///if(node==5) cout<<x<<" "<<l1<<" "<<r1<<" fadfdafafa",debug
            return;
        }
        int mid=l+r>>1;
        upd2(node<<1,l,mid,l1,r1,x);
        upd2(node<<1|1,mid+1,r,l1,r1,x);
 }
    void hld(int x,int y,int z)
    {
        if(pos[x]<pos[y]) return;
        if(pos[head[x]]<=pos[y]) upd(1,1,n,pos[y],pos[x],z);
        else upd(1,1,n,pos[head[x]],pos[x],z),hld(st[0][head[x]],y,z);
    }
    void hld2(int x,int y,int z)
    {
        if(pos[x]<pos[y]) return;
        if(pos[head[x]]<=pos[y]) upd2(1,1,n,pos[y],pos[x],z);
        else upd2(1,1,n,pos[head[x]],pos[x],z),hld2(st[0][head[x]],y,z);
    }
    void upd_hld(int x,int y)
    {
        s2=lca(x,y);
     s3=lca2(s2,y);
        hld(st[0][x],s2,f[pos[x]]);
     hld(st[0][y],s3,f[pos[x]]);
if(s2==y)s2=lca2(x,s2);
         hld2(x,s2,f[pos[x]]);
    hld2(st[0][y],s3,f[pos[x]]);
    }
} stt;
bool de;
void dfs2(int x,int y)
{
     c[x][y]=1;
     for(auto f:v[x][y]){
     if(f.b==0&&c[f.a][0]==1){de=1; return;}
      if(c[f.a][f.b]) continue;
      dfs2(f.a,f.b);
      if(de)return;
     }
     c[x][y]=2;
}

void phongbeo()
{
n=scan();
    /// cach 1
    de=0;
    dem=0;
    for(int i=1; i<=n; i++)
        v2[i].clear(),f[i]=0,heavy[i]=0,pos[i]=0,head[i]=0,depth[i]=0;
    for(int i=1; i<=n*4; i++)
        v[i][0].clear(),v[i][1].clear(),c[i][0]=c[i][1]=0;
    for(int i=1; i<n; i++)
       l=scan(),r=scan(),v2[l].pb(r),v2[r].pb(l);
    dfs(1,0);
    des(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]];
    stt.setup(1,1,n);
m=scan();
    for(int i=1; i<=m; i++)
       a[i].a=scan(),a[i].b=scan(),stt.upd_hld(a[i].a,a[i].b),v[f[pos[a[i].a]]][0].pb({f[pos[a[i].b]],1});
 if(n>=120000) assert(0);
 dem=0;
    for(int i=1; i<=m; i++)
    {
        if(!c[f[pos[a[i].a]]][0]) dfs2(f[pos[a[i].a]],0);
        if(de)break;
    }


    if(de) cout<<"No";
    else cout<<"Yes";
}

Compilation message

jail.cpp:63:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   63 | main()
      | ^~~~
jail.cpp: In member function 'void IT::setup(int, int, int)':
jail.cpp:156:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  156 |         int mid=l+r>>1;
      |                 ~^~
jail.cpp: In member function 'void IT::upd(int, int, int, int, int, int)':
jail.cpp:169:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  169 |         int mid=l+r>>1;
      |                 ~^~
jail.cpp: In member function 'void IT::upd2(int, int, int, int, int, int)':
jail.cpp:183:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  183 |         int mid=l+r>>1;
      |                 ~^~
jail.cpp: In member function 'void IT::upd_hld(int, int)':
jail.cpp:205:1: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  205 | if(s2==y)s2=lca2(x,s2);
      | ^~
jail.cpp:206:10: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  206 |          hld2(x,s2,f[pos[x]]);
      |          ^~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 25948 KB Output is correct
2 Correct 18 ms 25948 KB Output is correct
3 Correct 13 ms 25832 KB Output is correct
4 Correct 24 ms 26204 KB Output is correct
5 Correct 30 ms 26712 KB Output is correct
6 Correct 20 ms 25948 KB Output is correct
7 Correct 21 ms 26200 KB Output is correct
8 Correct 19 ms 26588 KB Output is correct
9 Correct 1410 ms 126504 KB Output is correct
10 Execution timed out 5129 ms 544944 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25948 KB Output is correct
2 Correct 14 ms 25948 KB Output is correct
3 Correct 13 ms 25956 KB Output is correct
4 Correct 13 ms 25944 KB Output is correct
5 Correct 18 ms 25944 KB Output is correct
6 Correct 17 ms 25948 KB Output is correct
7 Correct 14 ms 25948 KB Output is correct
8 Correct 16 ms 25944 KB Output is correct
9 Correct 13 ms 25944 KB Output is correct
10 Correct 18 ms 25844 KB Output is correct
11 Correct 15 ms 25944 KB Output is correct
12 Correct 12 ms 25944 KB Output is correct
13 Correct 17 ms 25948 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25948 KB Output is correct
2 Correct 14 ms 25948 KB Output is correct
3 Correct 13 ms 25956 KB Output is correct
4 Correct 13 ms 25944 KB Output is correct
5 Correct 18 ms 25944 KB Output is correct
6 Correct 17 ms 25948 KB Output is correct
7 Correct 14 ms 25948 KB Output is correct
8 Correct 16 ms 25944 KB Output is correct
9 Correct 13 ms 25944 KB Output is correct
10 Correct 18 ms 25844 KB Output is correct
11 Correct 15 ms 25944 KB Output is correct
12 Correct 12 ms 25944 KB Output is correct
13 Correct 17 ms 25948 KB Output is correct
14 Correct 14 ms 25944 KB Output is correct
15 Correct 17 ms 25948 KB Output is correct
16 Correct 16 ms 25948 KB Output is correct
17 Correct 15 ms 25948 KB Output is correct
18 Correct 17 ms 25948 KB Output is correct
19 Correct 14 ms 25948 KB Output is correct
20 Correct 19 ms 26100 KB Output is correct
21 Correct 18 ms 25948 KB Output is correct
22 Correct 15 ms 25944 KB Output is correct
23 Correct 13 ms 25948 KB Output is correct
24 Correct 14 ms 25756 KB Output is correct
25 Correct 21 ms 26212 KB Output is correct
26 Correct 14 ms 25944 KB Output is correct
27 Correct 14 ms 26072 KB Output is correct
28 Correct 14 ms 25948 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25948 KB Output is correct
2 Correct 14 ms 25948 KB Output is correct
3 Correct 13 ms 25956 KB Output is correct
4 Correct 13 ms 25944 KB Output is correct
5 Correct 18 ms 25944 KB Output is correct
6 Correct 17 ms 25948 KB Output is correct
7 Correct 14 ms 25948 KB Output is correct
8 Correct 16 ms 25944 KB Output is correct
9 Correct 13 ms 25944 KB Output is correct
10 Correct 18 ms 25844 KB Output is correct
11 Correct 15 ms 25944 KB Output is correct
12 Correct 12 ms 25944 KB Output is correct
13 Correct 17 ms 25948 KB Output is correct
14 Correct 14 ms 25944 KB Output is correct
15 Correct 17 ms 25948 KB Output is correct
16 Correct 16 ms 25948 KB Output is correct
17 Correct 15 ms 25948 KB Output is correct
18 Correct 17 ms 25948 KB Output is correct
19 Correct 14 ms 25948 KB Output is correct
20 Correct 19 ms 26100 KB Output is correct
21 Correct 18 ms 25948 KB Output is correct
22 Correct 15 ms 25944 KB Output is correct
23 Correct 13 ms 25948 KB Output is correct
24 Correct 14 ms 25756 KB Output is correct
25 Correct 21 ms 26212 KB Output is correct
26 Correct 14 ms 25944 KB Output is correct
27 Correct 14 ms 26072 KB Output is correct
28 Correct 14 ms 25948 KB Output is correct
29 Correct 21 ms 26456 KB Output is correct
30 Correct 14 ms 25948 KB Output is correct
31 Correct 20 ms 26204 KB Output is correct
32 Correct 17 ms 26200 KB Output is correct
33 Correct 16 ms 25812 KB Output is correct
34 Correct 18 ms 25912 KB Output is correct
35 Correct 24 ms 26032 KB Output is correct
36 Correct 20 ms 25948 KB Output is correct
37 Correct 16 ms 26200 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25948 KB Output is correct
2 Correct 14 ms 25948 KB Output is correct
3 Correct 13 ms 25956 KB Output is correct
4 Correct 13 ms 25944 KB Output is correct
5 Correct 18 ms 25944 KB Output is correct
6 Correct 17 ms 25948 KB Output is correct
7 Correct 14 ms 25948 KB Output is correct
8 Correct 16 ms 25944 KB Output is correct
9 Correct 13 ms 25944 KB Output is correct
10 Correct 18 ms 25844 KB Output is correct
11 Correct 15 ms 25944 KB Output is correct
12 Correct 12 ms 25944 KB Output is correct
13 Correct 17 ms 25948 KB Output is correct
14 Correct 14 ms 25944 KB Output is correct
15 Correct 17 ms 25948 KB Output is correct
16 Correct 16 ms 25948 KB Output is correct
17 Correct 15 ms 25948 KB Output is correct
18 Correct 17 ms 25948 KB Output is correct
19 Correct 14 ms 25948 KB Output is correct
20 Correct 19 ms 26100 KB Output is correct
21 Correct 18 ms 25948 KB Output is correct
22 Correct 15 ms 25944 KB Output is correct
23 Correct 13 ms 25948 KB Output is correct
24 Correct 14 ms 25756 KB Output is correct
25 Correct 21 ms 26212 KB Output is correct
26 Correct 14 ms 25944 KB Output is correct
27 Correct 14 ms 26072 KB Output is correct
28 Correct 14 ms 25948 KB Output is correct
29 Correct 21 ms 26456 KB Output is correct
30 Correct 14 ms 25948 KB Output is correct
31 Correct 20 ms 26204 KB Output is correct
32 Correct 17 ms 26200 KB Output is correct
33 Correct 16 ms 25812 KB Output is correct
34 Correct 18 ms 25912 KB Output is correct
35 Correct 24 ms 26032 KB Output is correct
36 Correct 20 ms 25948 KB Output is correct
37 Correct 16 ms 26200 KB Output is correct
38 Correct 1413 ms 126356 KB Output is correct
39 Execution timed out 5126 ms 811184 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25828 KB Output is correct
2 Correct 14 ms 25944 KB Output is correct
3 Correct 13 ms 25944 KB Output is correct
4 Correct 14 ms 25948 KB Output is correct
5 Correct 16 ms 25948 KB Output is correct
6 Correct 13 ms 25928 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 14 ms 25840 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 13 ms 25948 KB Output is correct
11 Correct 14 ms 25876 KB Output is correct
12 Correct 14 ms 25948 KB Output is correct
13 Correct 36 ms 26576 KB Output is correct
14 Correct 46 ms 26716 KB Output is correct
15 Correct 39 ms 26704 KB Output is correct
16 Runtime error 146 ms 122704 KB Execution killed with signal 6
17 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 25948 KB Output is correct
2 Correct 18 ms 25948 KB Output is correct
3 Correct 13 ms 25832 KB Output is correct
4 Correct 24 ms 26204 KB Output is correct
5 Correct 30 ms 26712 KB Output is correct
6 Correct 20 ms 25948 KB Output is correct
7 Correct 21 ms 26200 KB Output is correct
8 Correct 19 ms 26588 KB Output is correct
9 Correct 1410 ms 126504 KB Output is correct
10 Execution timed out 5129 ms 544944 KB Time limit exceeded
11 Halted 0 ms 0 KB -