oj.uz

Submission #1077625

# Submission time Handle Problem Language Result Execution time Memory
1077625 2024-08-27T08:24:43 Z BABY_GANGSTER Jail (JOI22_jail) C++17
49 / 100
 5000 ms 807284 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
}
const int N=2e5+10;
int depth[N];
int head[N];
int pos[N];
int tout[N];
vector<int> v2[N];
vector<ib> v[N*4][2];
int heavy[N];
ib a[N];
int f[N];
int sz[N];
int mxz[N];
int c[N*4][2];
int par[N*4];
void dfs(int x,int y)
{
    sz[x]=1;
    mxz[x]=0;
    par[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];
        }
    }
}

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);
            tout[x]=dem;
}
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});
          //  cout<<x<<" "<<node<<" "<<0,down
         //   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});
            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 upd_hld(int u, int v, int i,int dd){
   while (head[u]!=head[v]){
      if (depth[head[u]]<depth[head[v]]) swap(u, v);
      upd(1, 1, n, pos[head[u]], pos[u], i);
      u=par[head[u]];
   }
   if (depth[u]>depth[v]) swap(u, v);
   upd(1, 1, n, pos[u]+dd, pos[v], i);
}
void upd_hld2(int u, int v, int i,int dd){
   while (head[u]!=head[v]){
      if (depth[head[u]]<depth[head[v]]) swap(u, v);
      upd2(1, 1, n, pos[head[u]], pos[u], i);
      u=par[head[u]];
   }
   if (depth[u]>depth[v]) swap(u, v);
   upd2(1, 1, n, pos[u]+dd, pos[v], i);
}
} stt;
bool de;
bool check(int x,int y)
{
     if(pos[x]<=pos[y]&&tout[x]>=pos[y]) return 1;
      return 0;
}
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);
    stt.setup(1,1,n);
m=scan();
if(dem>n) assert(0);
    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(check(a[i].a,a[i].b)){
   stt.upd_hld(a[i].a,par[a[i].b],f[pos[a[i].a]],1);}
   else if(check(a[i].b,a[i].a)){
        stt.upd_hld(par[a[i].a],a[i].b,f[pos[a[i].a]],1);}
   else {
        stt.upd_hld(par[a[i].a],par[a[i].b],f[pos[a[i].a]],0);}
    if(check(a[i].b,a[i].a))
        stt.upd_hld2(a[i].a,a[i].b,f[pos[a[i].a]],1);
    else stt.upd_hld2(a[i].a,par[a[i].b],f[pos[a[i].a]],0);
       }
 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 function 'void des(int, int)':
jail.cpp:115:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  115 |         if(pos[f]==0)
      |         ^~
jail.cpp:117:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  117 |             tout[x]=dem;
      |             ^~~~
jail.cpp: In member function 'void IT::setup(int, int, int)':
jail.cpp:131:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  131 |         int mid=l+r>>1;
      |                 ~^~
jail.cpp: In member function 'void IT::upd(int, int, int, int, int, int)':
jail.cpp:145:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  145 |         int mid=l+r>>1;
      |                 ~^~
jail.cpp: In member function 'void IT::upd2(int, int, int, int, int, int)':
jail.cpp:158:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  158 |         int mid=l+r>>1;
      |                 ~^~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 42584 KB Output is correct
2 Correct 36 ms 42588 KB Output is correct
3 Correct 22 ms 42584 KB Output is correct
4 Correct 25 ms 42840 KB Output is correct
5 Correct 34 ms 42844 KB Output is correct
6 Correct 33 ms 42844 KB Output is correct
7 Correct 23 ms 42812 KB Output is correct
8 Correct 27 ms 43344 KB Output is correct
9 Correct 1422 ms 141632 KB Output is correct
10 Execution timed out 5053 ms 525768 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 42792 KB Output is correct
2 Correct 24 ms 42572 KB Output is correct
3 Correct 26 ms 42844 KB Output is correct
4 Correct 26 ms 42844 KB Output is correct
5 Correct 26 ms 42844 KB Output is correct
6 Correct 24 ms 42808 KB Output is correct
7 Correct 30 ms 42844 KB Output is correct
8 Correct 25 ms 42748 KB Output is correct
9 Correct 24 ms 42844 KB Output is correct
10 Correct 30 ms 42844 KB Output is correct
11 Correct 24 ms 42844 KB Output is correct
12 Correct 25 ms 42732 KB Output is correct
13 Correct 26 ms 42740 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 42792 KB Output is correct
2 Correct 24 ms 42572 KB Output is correct
3 Correct 26 ms 42844 KB Output is correct
4 Correct 26 ms 42844 KB Output is correct
5 Correct 26 ms 42844 KB Output is correct
6 Correct 24 ms 42808 KB Output is correct
7 Correct 30 ms 42844 KB Output is correct
8 Correct 25 ms 42748 KB Output is correct
9 Correct 24 ms 42844 KB Output is correct
10 Correct 30 ms 42844 KB Output is correct
11 Correct 24 ms 42844 KB Output is correct
12 Correct 25 ms 42732 KB Output is correct
13 Correct 26 ms 42740 KB Output is correct
14 Correct 29 ms 42576 KB Output is correct
15 Correct 24 ms 42792 KB Output is correct
16 Correct 22 ms 42844 KB Output is correct
17 Correct 25 ms 42844 KB Output is correct
18 Correct 24 ms 42844 KB Output is correct
19 Correct 24 ms 42588 KB Output is correct
20 Correct 25 ms 42896 KB Output is correct
21 Correct 24 ms 42844 KB Output is correct
22 Correct 32 ms 43100 KB Output is correct
23 Correct 30 ms 42588 KB Output is correct
24 Correct 23 ms 42584 KB Output is correct
25 Correct 36 ms 42832 KB Output is correct
26 Correct 23 ms 42844 KB Output is correct
27 Correct 23 ms 42844 KB Output is correct
28 Correct 25 ms 42588 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 42792 KB Output is correct
2 Correct 24 ms 42572 KB Output is correct
3 Correct 26 ms 42844 KB Output is correct
4 Correct 26 ms 42844 KB Output is correct
5 Correct 26 ms 42844 KB Output is correct
6 Correct 24 ms 42808 KB Output is correct
7 Correct 30 ms 42844 KB Output is correct
8 Correct 25 ms 42748 KB Output is correct
9 Correct 24 ms 42844 KB Output is correct
10 Correct 30 ms 42844 KB Output is correct
11 Correct 24 ms 42844 KB Output is correct
12 Correct 25 ms 42732 KB Output is correct
13 Correct 26 ms 42740 KB Output is correct
14 Correct 29 ms 42576 KB Output is correct
15 Correct 24 ms 42792 KB Output is correct
16 Correct 22 ms 42844 KB Output is correct
17 Correct 25 ms 42844 KB Output is correct
18 Correct 24 ms 42844 KB Output is correct
19 Correct 24 ms 42588 KB Output is correct
20 Correct 25 ms 42896 KB Output is correct
21 Correct 24 ms 42844 KB Output is correct
22 Correct 32 ms 43100 KB Output is correct
23 Correct 30 ms 42588 KB Output is correct
24 Correct 23 ms 42584 KB Output is correct
25 Correct 36 ms 42832 KB Output is correct
26 Correct 23 ms 42844 KB Output is correct
27 Correct 23 ms 42844 KB Output is correct
28 Correct 25 ms 42588 KB Output is correct
29 Correct 28 ms 43352 KB Output is correct
30 Correct 29 ms 42764 KB Output is correct
31 Correct 23 ms 43028 KB Output is correct
32 Correct 23 ms 42844 KB Output is correct
33 Correct 23 ms 42844 KB Output is correct
34 Correct 24 ms 42812 KB Output is correct
35 Correct 30 ms 42844 KB Output is correct
36 Correct 25 ms 42840 KB Output is correct
37 Correct 26 ms 42844 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 42792 KB Output is correct
2 Correct 24 ms 42572 KB Output is correct
3 Correct 26 ms 42844 KB Output is correct
4 Correct 26 ms 42844 KB Output is correct
5 Correct 26 ms 42844 KB Output is correct
6 Correct 24 ms 42808 KB Output is correct
7 Correct 30 ms 42844 KB Output is correct
8 Correct 25 ms 42748 KB Output is correct
9 Correct 24 ms 42844 KB Output is correct
10 Correct 30 ms 42844 KB Output is correct
11 Correct 24 ms 42844 KB Output is correct
12 Correct 25 ms 42732 KB Output is correct
13 Correct 26 ms 42740 KB Output is correct
14 Correct 29 ms 42576 KB Output is correct
15 Correct 24 ms 42792 KB Output is correct
16 Correct 22 ms 42844 KB Output is correct
17 Correct 25 ms 42844 KB Output is correct
18 Correct 24 ms 42844 KB Output is correct
19 Correct 24 ms 42588 KB Output is correct
20 Correct 25 ms 42896 KB Output is correct
21 Correct 24 ms 42844 KB Output is correct
22 Correct 32 ms 43100 KB Output is correct
23 Correct 30 ms 42588 KB Output is correct
24 Correct 23 ms 42584 KB Output is correct
25 Correct 36 ms 42832 KB Output is correct
26 Correct 23 ms 42844 KB Output is correct
27 Correct 23 ms 42844 KB Output is correct
28 Correct 25 ms 42588 KB Output is correct
29 Correct 28 ms 43352 KB Output is correct
30 Correct 29 ms 42764 KB Output is correct
31 Correct 23 ms 43028 KB Output is correct
32 Correct 23 ms 42844 KB Output is correct
33 Correct 23 ms 42844 KB Output is correct
34 Correct 24 ms 42812 KB Output is correct
35 Correct 30 ms 42844 KB Output is correct
36 Correct 25 ms 42840 KB Output is correct
37 Correct 26 ms 42844 KB Output is correct
38 Correct 1404 ms 141716 KB Output is correct
39 Execution timed out 5090 ms 807284 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 42584 KB Output is correct
2 Correct 25 ms 42588 KB Output is correct
3 Correct 26 ms 42584 KB Output is correct
4 Correct 21 ms 42588 KB Output is correct
5 Correct 27 ms 42736 KB Output is correct
6 Correct 24 ms 42844 KB Output is correct
7 Correct 24 ms 42844 KB Output is correct
8 Correct 24 ms 42588 KB Output is correct
9 Correct 23 ms 42588 KB Output is correct
10 Correct 23 ms 42584 KB Output is correct
11 Correct 22 ms 42840 KB Output is correct
12 Correct 27 ms 42744 KB Output is correct
13 Correct 42 ms 42844 KB Output is correct
14 Correct 50 ms 42844 KB Output is correct
15 Correct 47 ms 42840 KB Output is correct
16 Runtime error 157 ms 141136 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 28 ms 42584 KB Output is correct
2 Correct 36 ms 42588 KB Output is correct
3 Correct 22 ms 42584 KB Output is correct
4 Correct 25 ms 42840 KB Output is correct
5 Correct 34 ms 42844 KB Output is correct
6 Correct 33 ms 42844 KB Output is correct
7 Correct 23 ms 42812 KB Output is correct
8 Correct 27 ms 43344 KB Output is correct
9 Correct 1422 ms 141632 KB Output is correct
10 Execution timed out 5053 ms 525768 KB Time limit exceeded
11 Halted 0 ms 0 KB -