oj.uz

Submission #1077495

# Submission time Handle Problem Language Result Execution time Memory
1077495 2024-08-27T07:42:01 Z modwwe Jail (JOI22_jail) C++17
49 / 100
 1706 ms 135248 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][120001];
int depth[120001];
int head[120001];
int pos[120001];
vector<int> v2[120001];
vector<ib> v[500001][2];
int heavy[120001];
ib a[120001];
int f[120001];
int sz[120001];
int mxz[120001];
int c[500001][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(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();
if(n>=1e5)assert(0);
    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});
 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 21 ms 26716 KB Output is correct
2 Correct 16 ms 26716 KB Output is correct
3 Correct 14 ms 26828 KB Output is correct
4 Correct 21 ms 27228 KB Output is correct
5 Correct 36 ms 27740 KB Output is correct
6 Correct 19 ms 27044 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 21 ms 27600 KB Output is correct
9 Correct 1706 ms 127632 KB Output is correct
10 Runtime error 110 ms 135248 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 15 ms 26716 KB Output is correct
2 Correct 21 ms 26772 KB Output is correct
3 Correct 19 ms 26884 KB Output is correct
4 Correct 16 ms 26972 KB Output is correct
5 Correct 14 ms 26968 KB Output is correct
6 Correct 22 ms 26788 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 15 ms 26916 KB Output is correct
9 Correct 19 ms 26972 KB Output is correct
10 Correct 15 ms 26968 KB Output is correct
11 Correct 22 ms 26968 KB Output is correct
12 Correct 15 ms 26972 KB Output is correct
13 Correct 13 ms 26984 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 26716 KB Output is correct
2 Correct 21 ms 26772 KB Output is correct
3 Correct 19 ms 26884 KB Output is correct
4 Correct 16 ms 26972 KB Output is correct
5 Correct 14 ms 26968 KB Output is correct
6 Correct 22 ms 26788 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 15 ms 26916 KB Output is correct
9 Correct 19 ms 26972 KB Output is correct
10 Correct 15 ms 26968 KB Output is correct
11 Correct 22 ms 26968 KB Output is correct
12 Correct 15 ms 26972 KB Output is correct
13 Correct 13 ms 26984 KB Output is correct
14 Correct 14 ms 26716 KB Output is correct
15 Correct 14 ms 26892 KB Output is correct
16 Correct 17 ms 26972 KB Output is correct
17 Correct 18 ms 26968 KB Output is correct
18 Correct 18 ms 27048 KB Output is correct
19 Correct 23 ms 26640 KB Output is correct
20 Correct 18 ms 27228 KB Output is correct
21 Correct 19 ms 26972 KB Output is correct
22 Correct 15 ms 26972 KB Output is correct
23 Correct 17 ms 26852 KB Output is correct
24 Correct 14 ms 26932 KB Output is correct
25 Correct 15 ms 26860 KB Output is correct
26 Correct 20 ms 26832 KB Output is correct
27 Correct 21 ms 26968 KB Output is correct
28 Correct 17 ms 26832 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 26716 KB Output is correct
2 Correct 21 ms 26772 KB Output is correct
3 Correct 19 ms 26884 KB Output is correct
4 Correct 16 ms 26972 KB Output is correct
5 Correct 14 ms 26968 KB Output is correct
6 Correct 22 ms 26788 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 15 ms 26916 KB Output is correct
9 Correct 19 ms 26972 KB Output is correct
10 Correct 15 ms 26968 KB Output is correct
11 Correct 22 ms 26968 KB Output is correct
12 Correct 15 ms 26972 KB Output is correct
13 Correct 13 ms 26984 KB Output is correct
14 Correct 14 ms 26716 KB Output is correct
15 Correct 14 ms 26892 KB Output is correct
16 Correct 17 ms 26972 KB Output is correct
17 Correct 18 ms 26968 KB Output is correct
18 Correct 18 ms 27048 KB Output is correct
19 Correct 23 ms 26640 KB Output is correct
20 Correct 18 ms 27228 KB Output is correct
21 Correct 19 ms 26972 KB Output is correct
22 Correct 15 ms 26972 KB Output is correct
23 Correct 17 ms 26852 KB Output is correct
24 Correct 14 ms 26932 KB Output is correct
25 Correct 15 ms 26860 KB Output is correct
26 Correct 20 ms 26832 KB Output is correct
27 Correct 21 ms 26968 KB Output is correct
28 Correct 17 ms 26832 KB Output is correct
29 Correct 27 ms 27484 KB Output is correct
30 Correct 20 ms 26968 KB Output is correct
31 Correct 19 ms 27044 KB Output is correct
32 Correct 21 ms 27224 KB Output is correct
33 Correct 23 ms 26788 KB Output is correct
34 Correct 20 ms 26972 KB Output is correct
35 Correct 27 ms 27196 KB Output is correct
36 Correct 17 ms 26972 KB Output is correct
37 Correct 19 ms 26972 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 26716 KB Output is correct
2 Correct 21 ms 26772 KB Output is correct
3 Correct 19 ms 26884 KB Output is correct
4 Correct 16 ms 26972 KB Output is correct
5 Correct 14 ms 26968 KB Output is correct
6 Correct 22 ms 26788 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 15 ms 26916 KB Output is correct
9 Correct 19 ms 26972 KB Output is correct
10 Correct 15 ms 26968 KB Output is correct
11 Correct 22 ms 26968 KB Output is correct
12 Correct 15 ms 26972 KB Output is correct
13 Correct 13 ms 26984 KB Output is correct
14 Correct 14 ms 26716 KB Output is correct
15 Correct 14 ms 26892 KB Output is correct
16 Correct 17 ms 26972 KB Output is correct
17 Correct 18 ms 26968 KB Output is correct
18 Correct 18 ms 27048 KB Output is correct
19 Correct 23 ms 26640 KB Output is correct
20 Correct 18 ms 27228 KB Output is correct
21 Correct 19 ms 26972 KB Output is correct
22 Correct 15 ms 26972 KB Output is correct
23 Correct 17 ms 26852 KB Output is correct
24 Correct 14 ms 26932 KB Output is correct
25 Correct 15 ms 26860 KB Output is correct
26 Correct 20 ms 26832 KB Output is correct
27 Correct 21 ms 26968 KB Output is correct
28 Correct 17 ms 26832 KB Output is correct
29 Correct 27 ms 27484 KB Output is correct
30 Correct 20 ms 26968 KB Output is correct
31 Correct 19 ms 27044 KB Output is correct
32 Correct 21 ms 27224 KB Output is correct
33 Correct 23 ms 26788 KB Output is correct
34 Correct 20 ms 26972 KB Output is correct
35 Correct 27 ms 27196 KB Output is correct
36 Correct 17 ms 26972 KB Output is correct
37 Correct 19 ms 26972 KB Output is correct
38 Correct 1459 ms 127548 KB Output is correct
39 Runtime error 117 ms 135132 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 26712 KB Output is correct
2 Correct 14 ms 26716 KB Output is correct
3 Correct 16 ms 26716 KB Output is correct
4 Correct 14 ms 26712 KB Output is correct
5 Correct 24 ms 27224 KB Output is correct
6 Correct 15 ms 26812 KB Output is correct
7 Correct 15 ms 26968 KB Output is correct
8 Correct 23 ms 26716 KB Output is correct
9 Correct 15 ms 26748 KB Output is correct
10 Correct 22 ms 26704 KB Output is correct
11 Correct 12 ms 26716 KB Output is correct
12 Correct 22 ms 26972 KB Output is correct
13 Correct 40 ms 27552 KB Output is correct
14 Correct 64 ms 27984 KB Output is correct
15 Correct 56 ms 27476 KB Output is correct
16 Runtime error 105 ms 116560 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 21 ms 26716 KB Output is correct
2 Correct 16 ms 26716 KB Output is correct
3 Correct 14 ms 26828 KB Output is correct
4 Correct 21 ms 27228 KB Output is correct
5 Correct 36 ms 27740 KB Output is correct
6 Correct 19 ms 27044 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 21 ms 27600 KB Output is correct
9 Correct 1706 ms 127632 KB Output is correct
10 Runtime error 110 ms 135248 KB Execution killed with signal 6
11 Halted 0 ms 0 KB -