oj.uz

Submission #1077683

# Submission time Handle Problem Language Result Execution time Memory
1077683 2024-08-27T08:35:03 Z BABY_GANGSTER Jail (JOI22_jail) C++14
60 / 100
 5000 ms 841648 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=1e5+2e4+1;
int depth[N];
int head[N];
int pos[N];
int tout[N];
vector<int> v2[N];
vector<ib> v[N*8][2];
int heavy[N];
ib a[N];
int f[N];
int sz[N];
int mxz[N];
int c[N*8][2];
int par[N];
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>=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;
        if(l1<=mid)upd(node<<1,l,mid,l1,r1,x);
        if(r1>=mid+1) 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>=l1&&r<=r1)
        {
            v[node][1].pb({x,0});
            return;
        }
        int mid=l+r>>1;
        if(l1<=mid)upd2(node<<1,l,mid,l1,r1,x);
        if(r1>=mid+1)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);
   if(pos[u]+dd<=pos[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(c[f.a][f.b ]==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();
    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);
       }
    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:144:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  144 |         int mid=l+r>>1;
      |                 ~^~
jail.cpp: In member function 'void IT::upd2(int, int, int, int, int, int)':
jail.cpp:156:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  156 |         int mid=l+r>>1;
      |                 ~^~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 49696 KB Output is correct
2 Correct 16 ms 49756 KB Output is correct
3 Correct 18 ms 49692 KB Output is correct
4 Correct 26 ms 50008 KB Output is correct
5 Correct 29 ms 50520 KB Output is correct
6 Correct 16 ms 49756 KB Output is correct
7 Correct 27 ms 49756 KB Output is correct
8 Correct 22 ms 50268 KB Output is correct
9 Correct 1301 ms 149744 KB Output is correct
10 Execution timed out 5083 ms 841648 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 49756 KB Output is correct
2 Correct 15 ms 49752 KB Output is correct
3 Correct 16 ms 49756 KB Output is correct
4 Correct 18 ms 49752 KB Output is correct
5 Correct 18 ms 49752 KB Output is correct
6 Correct 21 ms 49756 KB Output is correct
7 Correct 17 ms 49752 KB Output is correct
8 Correct 18 ms 49752 KB Output is correct
9 Correct 18 ms 49752 KB Output is correct
10 Correct 21 ms 49756 KB Output is correct
11 Correct 16 ms 49756 KB Output is correct
12 Correct 17 ms 49752 KB Output is correct
13 Correct 16 ms 49752 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 49756 KB Output is correct
2 Correct 15 ms 49752 KB Output is correct
3 Correct 16 ms 49756 KB Output is correct
4 Correct 18 ms 49752 KB Output is correct
5 Correct 18 ms 49752 KB Output is correct
6 Correct 21 ms 49756 KB Output is correct
7 Correct 17 ms 49752 KB Output is correct
8 Correct 18 ms 49752 KB Output is correct
9 Correct 18 ms 49752 KB Output is correct
10 Correct 21 ms 49756 KB Output is correct
11 Correct 16 ms 49756 KB Output is correct
12 Correct 17 ms 49752 KB Output is correct
13 Correct 16 ms 49752 KB Output is correct
14 Correct 16 ms 49752 KB Output is correct
15 Correct 17 ms 49756 KB Output is correct
16 Correct 18 ms 49888 KB Output is correct
17 Correct 19 ms 49756 KB Output is correct
18 Correct 17 ms 49756 KB Output is correct
19 Correct 18 ms 49756 KB Output is correct
20 Correct 17 ms 49704 KB Output is correct
21 Correct 16 ms 49752 KB Output is correct
22 Correct 17 ms 49676 KB Output is correct
23 Correct 18 ms 49768 KB Output is correct
24 Correct 15 ms 49752 KB Output is correct
25 Correct 16 ms 49756 KB Output is correct
26 Correct 18 ms 49752 KB Output is correct
27 Correct 17 ms 49756 KB Output is correct
28 Correct 16 ms 49756 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 49756 KB Output is correct
2 Correct 15 ms 49752 KB Output is correct
3 Correct 16 ms 49756 KB Output is correct
4 Correct 18 ms 49752 KB Output is correct
5 Correct 18 ms 49752 KB Output is correct
6 Correct 21 ms 49756 KB Output is correct
7 Correct 17 ms 49752 KB Output is correct
8 Correct 18 ms 49752 KB Output is correct
9 Correct 18 ms 49752 KB Output is correct
10 Correct 21 ms 49756 KB Output is correct
11 Correct 16 ms 49756 KB Output is correct
12 Correct 17 ms 49752 KB Output is correct
13 Correct 16 ms 49752 KB Output is correct
14 Correct 16 ms 49752 KB Output is correct
15 Correct 17 ms 49756 KB Output is correct
16 Correct 18 ms 49888 KB Output is correct
17 Correct 19 ms 49756 KB Output is correct
18 Correct 17 ms 49756 KB Output is correct
19 Correct 18 ms 49756 KB Output is correct
20 Correct 17 ms 49704 KB Output is correct
21 Correct 16 ms 49752 KB Output is correct
22 Correct 17 ms 49676 KB Output is correct
23 Correct 18 ms 49768 KB Output is correct
24 Correct 15 ms 49752 KB Output is correct
25 Correct 16 ms 49756 KB Output is correct
26 Correct 18 ms 49752 KB Output is correct
27 Correct 17 ms 49756 KB Output is correct
28 Correct 16 ms 49756 KB Output is correct
29 Correct 21 ms 50268 KB Output is correct
30 Correct 19 ms 49932 KB Output is correct
31 Correct 22 ms 50008 KB Output is correct
32 Correct 19 ms 50012 KB Output is correct
33 Correct 17 ms 49756 KB Output is correct
34 Correct 20 ms 49808 KB Output is correct
35 Correct 21 ms 50008 KB Output is correct
36 Correct 18 ms 49752 KB Output is correct
37 Correct 18 ms 49752 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 49756 KB Output is correct
2 Correct 15 ms 49752 KB Output is correct
3 Correct 16 ms 49756 KB Output is correct
4 Correct 18 ms 49752 KB Output is correct
5 Correct 18 ms 49752 KB Output is correct
6 Correct 21 ms 49756 KB Output is correct
7 Correct 17 ms 49752 KB Output is correct
8 Correct 18 ms 49752 KB Output is correct
9 Correct 18 ms 49752 KB Output is correct
10 Correct 21 ms 49756 KB Output is correct
11 Correct 16 ms 49756 KB Output is correct
12 Correct 17 ms 49752 KB Output is correct
13 Correct 16 ms 49752 KB Output is correct
14 Correct 16 ms 49752 KB Output is correct
15 Correct 17 ms 49756 KB Output is correct
16 Correct 18 ms 49888 KB Output is correct
17 Correct 19 ms 49756 KB Output is correct
18 Correct 17 ms 49756 KB Output is correct
19 Correct 18 ms 49756 KB Output is correct
20 Correct 17 ms 49704 KB Output is correct
21 Correct 16 ms 49752 KB Output is correct
22 Correct 17 ms 49676 KB Output is correct
23 Correct 18 ms 49768 KB Output is correct
24 Correct 15 ms 49752 KB Output is correct
25 Correct 16 ms 49756 KB Output is correct
26 Correct 18 ms 49752 KB Output is correct
27 Correct 17 ms 49756 KB Output is correct
28 Correct 16 ms 49756 KB Output is correct
29 Correct 21 ms 50268 KB Output is correct
30 Correct 19 ms 49932 KB Output is correct
31 Correct 22 ms 50008 KB Output is correct
32 Correct 19 ms 50012 KB Output is correct
33 Correct 17 ms 49756 KB Output is correct
34 Correct 20 ms 49808 KB Output is correct
35 Correct 21 ms 50008 KB Output is correct
36 Correct 18 ms 49752 KB Output is correct
37 Correct 18 ms 49752 KB Output is correct
38 Correct 1282 ms 149740 KB Output is correct
39 Execution timed out 5129 ms 825636 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 49756 KB Output is correct
2 Correct 15 ms 49724 KB Output is correct
3 Correct 17 ms 49752 KB Output is correct
4 Correct 18 ms 49756 KB Output is correct
5 Correct 21 ms 49756 KB Output is correct
6 Correct 17 ms 49752 KB Output is correct
7 Correct 15 ms 49752 KB Output is correct
8 Correct 17 ms 49756 KB Output is correct
9 Correct 16 ms 49592 KB Output is correct
10 Correct 16 ms 49752 KB Output is correct
11 Correct 17 ms 49756 KB Output is correct
12 Correct 18 ms 49752 KB Output is correct
13 Correct 35 ms 50260 KB Output is correct
14 Correct 44 ms 50524 KB Output is correct
15 Correct 37 ms 50332 KB Output is correct
16 Correct 106 ms 76908 KB Output is correct
17 Correct 293 ms 94144 KB Output is correct
18 Correct 595 ms 118448 KB Output is correct
19 Correct 170 ms 80724 KB Output is correct
20 Correct 163 ms 81196 KB Output is correct
21 Correct 183 ms 81384 KB Output is correct
22 Correct 293 ms 96292 KB Output is correct
23 Correct 218 ms 96820 KB Output is correct
24 Correct 217 ms 96944 KB Output is correct
25 Correct 208 ms 98168 KB Output is correct
26 Correct 227 ms 97832 KB Output is correct
27 Correct 186 ms 88520 KB Output is correct
28 Correct 187 ms 91076 KB Output is correct
29 Correct 164 ms 85192 KB Output is correct
30 Correct 156 ms 82052 KB Output is correct
31 Correct 148 ms 82888 KB Output is correct
32 Correct 146 ms 82156 KB Output is correct
33 Correct 169 ms 82924 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 49696 KB Output is correct
2 Correct 16 ms 49756 KB Output is correct
3 Correct 18 ms 49692 KB Output is correct
4 Correct 26 ms 50008 KB Output is correct
5 Correct 29 ms 50520 KB Output is correct
6 Correct 16 ms 49756 KB Output is correct
7 Correct 27 ms 49756 KB Output is correct
8 Correct 22 ms 50268 KB Output is correct
9 Correct 1301 ms 149744 KB Output is correct
10 Execution timed out 5083 ms 841648 KB Time limit exceeded
11 Halted 0 ms 0 KB -