oj.uz

Submission #1077535

# Submission time Handle Problem Language Result Execution time Memory
1077535 2024-08-27T07:54:55 Z BABY_GANGSTER Jail (JOI22_jail) C++14
49 / 100
 1475 ms 132020 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();
       v[f[pos[a[i].a]]][0].pb({f[pos[a[i].b]],1});
      if(n<120000) stt.upd_hld(a[i].a,a[i].b);
       }
 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 15 ms 25944 KB Output is correct
2 Correct 14 ms 25948 KB Output is correct
3 Correct 15 ms 25948 KB Output is correct
4 Correct 29 ms 25944 KB Output is correct
5 Correct 42 ms 26096 KB Output is correct
6 Correct 15 ms 25948 KB Output is correct
7 Correct 20 ms 25948 KB Output is correct
8 Correct 19 ms 26460 KB Output is correct
9 Correct 1475 ms 125212 KB Output is correct
10 Runtime error 109 ms 131920 KB Execution killed with signal 6
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25944 KB Output is correct
2 Correct 15 ms 25788 KB Output is correct
3 Correct 19 ms 26040 KB Output is correct
4 Correct 19 ms 25948 KB Output is correct
5 Correct 15 ms 25948 KB Output is correct
6 Correct 20 ms 25808 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 15 ms 25952 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 15 ms 25948 KB Output is correct
11 Correct 20 ms 25948 KB Output is correct
12 Correct 14 ms 25952 KB Output is correct
13 Correct 18 ms 25948 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25944 KB Output is correct
2 Correct 15 ms 25788 KB Output is correct
3 Correct 19 ms 26040 KB Output is correct
4 Correct 19 ms 25948 KB Output is correct
5 Correct 15 ms 25948 KB Output is correct
6 Correct 20 ms 25808 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 15 ms 25952 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 15 ms 25948 KB Output is correct
11 Correct 20 ms 25948 KB Output is correct
12 Correct 14 ms 25952 KB Output is correct
13 Correct 18 ms 25948 KB Output is correct
14 Correct 16 ms 25956 KB Output is correct
15 Correct 13 ms 25692 KB Output is correct
16 Correct 21 ms 25948 KB Output is correct
17 Correct 21 ms 25948 KB Output is correct
18 Correct 15 ms 25944 KB Output is correct
19 Correct 15 ms 25948 KB Output is correct
20 Correct 16 ms 25948 KB Output is correct
21 Correct 21 ms 25944 KB Output is correct
22 Correct 16 ms 26068 KB Output is correct
23 Correct 20 ms 25948 KB Output is correct
24 Correct 15 ms 25912 KB Output is correct
25 Correct 15 ms 25944 KB Output is correct
26 Correct 20 ms 25944 KB Output is correct
27 Correct 20 ms 25948 KB Output is correct
28 Correct 16 ms 25948 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25944 KB Output is correct
2 Correct 15 ms 25788 KB Output is correct
3 Correct 19 ms 26040 KB Output is correct
4 Correct 19 ms 25948 KB Output is correct
5 Correct 15 ms 25948 KB Output is correct
6 Correct 20 ms 25808 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 15 ms 25952 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 15 ms 25948 KB Output is correct
11 Correct 20 ms 25948 KB Output is correct
12 Correct 14 ms 25952 KB Output is correct
13 Correct 18 ms 25948 KB Output is correct
14 Correct 16 ms 25956 KB Output is correct
15 Correct 13 ms 25692 KB Output is correct
16 Correct 21 ms 25948 KB Output is correct
17 Correct 21 ms 25948 KB Output is correct
18 Correct 15 ms 25944 KB Output is correct
19 Correct 15 ms 25948 KB Output is correct
20 Correct 16 ms 25948 KB Output is correct
21 Correct 21 ms 25944 KB Output is correct
22 Correct 16 ms 26068 KB Output is correct
23 Correct 20 ms 25948 KB Output is correct
24 Correct 15 ms 25912 KB Output is correct
25 Correct 15 ms 25944 KB Output is correct
26 Correct 20 ms 25944 KB Output is correct
27 Correct 20 ms 25948 KB Output is correct
28 Correct 16 ms 25948 KB Output is correct
29 Correct 26 ms 26460 KB Output is correct
30 Correct 19 ms 25944 KB Output is correct
31 Correct 17 ms 26200 KB Output is correct
32 Correct 17 ms 26008 KB Output is correct
33 Correct 15 ms 25948 KB Output is correct
34 Correct 22 ms 25948 KB Output is correct
35 Correct 20 ms 26200 KB Output is correct
36 Correct 15 ms 25948 KB Output is correct
37 Correct 22 ms 25948 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25944 KB Output is correct
2 Correct 15 ms 25788 KB Output is correct
3 Correct 19 ms 26040 KB Output is correct
4 Correct 19 ms 25948 KB Output is correct
5 Correct 15 ms 25948 KB Output is correct
6 Correct 20 ms 25808 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 15 ms 25952 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 15 ms 25948 KB Output is correct
11 Correct 20 ms 25948 KB Output is correct
12 Correct 14 ms 25952 KB Output is correct
13 Correct 18 ms 25948 KB Output is correct
14 Correct 16 ms 25956 KB Output is correct
15 Correct 13 ms 25692 KB Output is correct
16 Correct 21 ms 25948 KB Output is correct
17 Correct 21 ms 25948 KB Output is correct
18 Correct 15 ms 25944 KB Output is correct
19 Correct 15 ms 25948 KB Output is correct
20 Correct 16 ms 25948 KB Output is correct
21 Correct 21 ms 25944 KB Output is correct
22 Correct 16 ms 26068 KB Output is correct
23 Correct 20 ms 25948 KB Output is correct
24 Correct 15 ms 25912 KB Output is correct
25 Correct 15 ms 25944 KB Output is correct
26 Correct 20 ms 25944 KB Output is correct
27 Correct 20 ms 25948 KB Output is correct
28 Correct 16 ms 25948 KB Output is correct
29 Correct 26 ms 26460 KB Output is correct
30 Correct 19 ms 25944 KB Output is correct
31 Correct 17 ms 26200 KB Output is correct
32 Correct 17 ms 26008 KB Output is correct
33 Correct 15 ms 25948 KB Output is correct
34 Correct 22 ms 25948 KB Output is correct
35 Correct 20 ms 26200 KB Output is correct
36 Correct 15 ms 25948 KB Output is correct
37 Correct 22 ms 25948 KB Output is correct
38 Correct 1469 ms 125236 KB Output is correct
39 Runtime error 108 ms 132020 KB Execution killed with signal 6
40 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 25688 KB Output is correct
2 Correct 14 ms 25956 KB Output is correct
3 Correct 15 ms 25840 KB Output is correct
4 Correct 15 ms 25856 KB Output is correct
5 Correct 26 ms 25944 KB Output is correct
6 Correct 21 ms 25944 KB Output is correct
7 Correct 14 ms 25776 KB Output is correct
8 Correct 14 ms 25732 KB Output is correct
9 Correct 15 ms 25960 KB Output is correct
10 Correct 15 ms 25948 KB Output is correct
11 Correct 15 ms 25872 KB Output is correct
12 Correct 15 ms 25944 KB Output is correct
13 Correct 32 ms 26052 KB Output is correct
14 Correct 59 ms 25924 KB Output is correct
15 Correct 40 ms 26028 KB Output is correct
16 Runtime error 111 ms 114008 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 15 ms 25944 KB Output is correct
2 Correct 14 ms 25948 KB Output is correct
3 Correct 15 ms 25948 KB Output is correct
4 Correct 29 ms 25944 KB Output is correct
5 Correct 42 ms 26096 KB Output is correct
6 Correct 15 ms 25948 KB Output is correct
7 Correct 20 ms 25948 KB Output is correct
8 Correct 19 ms 26460 KB Output is correct
9 Correct 1475 ms 125212 KB Output is correct
10 Runtime error 109 ms 131920 KB Execution killed with signal 6
11 Halted 0 ms 0 KB -