oj.uz

Submission #1077489

# Submission time Handle Problem Language Result Execution time Memory
1077489 2024-08-27T07:41:00 Z modwwe Jail (JOI22_jail) C++17
49 / 100
 5000 ms 644204 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(m>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 15 ms 26716 KB Output is correct
2 Correct 14 ms 26712 KB Output is correct
3 Correct 15 ms 26716 KB Output is correct
4 Correct 22 ms 27228 KB Output is correct
5 Correct 28 ms 27736 KB Output is correct
6 Correct 15 ms 26972 KB Output is correct
7 Correct 16 ms 26888 KB Output is correct
8 Correct 31 ms 27640 KB Output is correct
9 Correct 1481 ms 127544 KB Output is correct
10 Execution timed out 5055 ms 538316 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 26716 KB Output is correct
2 Correct 15 ms 26716 KB Output is correct
3 Correct 22 ms 27224 KB Output is correct
4 Correct 22 ms 26788 KB Output is correct
5 Correct 14 ms 26968 KB Output is correct
6 Correct 23 ms 27444 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 15 ms 26896 KB Output is correct
9 Correct 16 ms 26968 KB Output is correct
10 Correct 23 ms 26968 KB Output is correct
11 Correct 18 ms 27224 KB Output is correct
12 Correct 14 ms 26948 KB Output is correct
13 Correct 17 ms 26972 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 26716 KB Output is correct
2 Correct 15 ms 26716 KB Output is correct
3 Correct 22 ms 27224 KB Output is correct
4 Correct 22 ms 26788 KB Output is correct
5 Correct 14 ms 26968 KB Output is correct
6 Correct 23 ms 27444 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 15 ms 26896 KB Output is correct
9 Correct 16 ms 26968 KB Output is correct
10 Correct 23 ms 26968 KB Output is correct
11 Correct 18 ms 27224 KB Output is correct
12 Correct 14 ms 26948 KB Output is correct
13 Correct 17 ms 26972 KB Output is correct
14 Correct 16 ms 26716 KB Output is correct
15 Correct 17 ms 26888 KB Output is correct
16 Correct 16 ms 26972 KB Output is correct
17 Correct 16 ms 26968 KB Output is correct
18 Correct 22 ms 27228 KB Output is correct
19 Correct 22 ms 26716 KB Output is correct
20 Correct 15 ms 26972 KB Output is correct
21 Correct 22 ms 26972 KB Output is correct
22 Correct 19 ms 26972 KB Output is correct
23 Correct 17 ms 26972 KB Output is correct
24 Correct 18 ms 26712 KB Output is correct
25 Correct 18 ms 26816 KB Output is correct
26 Correct 17 ms 26968 KB Output is correct
27 Correct 24 ms 26968 KB Output is correct
28 Correct 19 ms 26712 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 26716 KB Output is correct
2 Correct 15 ms 26716 KB Output is correct
3 Correct 22 ms 27224 KB Output is correct
4 Correct 22 ms 26788 KB Output is correct
5 Correct 14 ms 26968 KB Output is correct
6 Correct 23 ms 27444 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 15 ms 26896 KB Output is correct
9 Correct 16 ms 26968 KB Output is correct
10 Correct 23 ms 26968 KB Output is correct
11 Correct 18 ms 27224 KB Output is correct
12 Correct 14 ms 26948 KB Output is correct
13 Correct 17 ms 26972 KB Output is correct
14 Correct 16 ms 26716 KB Output is correct
15 Correct 17 ms 26888 KB Output is correct
16 Correct 16 ms 26972 KB Output is correct
17 Correct 16 ms 26968 KB Output is correct
18 Correct 22 ms 27228 KB Output is correct
19 Correct 22 ms 26716 KB Output is correct
20 Correct 15 ms 26972 KB Output is correct
21 Correct 22 ms 26972 KB Output is correct
22 Correct 19 ms 26972 KB Output is correct
23 Correct 17 ms 26972 KB Output is correct
24 Correct 18 ms 26712 KB Output is correct
25 Correct 18 ms 26816 KB Output is correct
26 Correct 17 ms 26968 KB Output is correct
27 Correct 24 ms 26968 KB Output is correct
28 Correct 19 ms 26712 KB Output is correct
29 Correct 25 ms 27520 KB Output is correct
30 Correct 15 ms 26972 KB Output is correct
31 Correct 22 ms 27244 KB Output is correct
32 Correct 20 ms 27224 KB Output is correct
33 Correct 17 ms 26972 KB Output is correct
34 Correct 23 ms 27032 KB Output is correct
35 Correct 22 ms 26972 KB Output is correct
36 Correct 16 ms 26968 KB Output is correct
37 Correct 25 ms 26972 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 26716 KB Output is correct
2 Correct 15 ms 26716 KB Output is correct
3 Correct 22 ms 27224 KB Output is correct
4 Correct 22 ms 26788 KB Output is correct
5 Correct 14 ms 26968 KB Output is correct
6 Correct 23 ms 27444 KB Output is correct
7 Correct 16 ms 26972 KB Output is correct
8 Correct 15 ms 26896 KB Output is correct
9 Correct 16 ms 26968 KB Output is correct
10 Correct 23 ms 26968 KB Output is correct
11 Correct 18 ms 27224 KB Output is correct
12 Correct 14 ms 26948 KB Output is correct
13 Correct 17 ms 26972 KB Output is correct
14 Correct 16 ms 26716 KB Output is correct
15 Correct 17 ms 26888 KB Output is correct
16 Correct 16 ms 26972 KB Output is correct
17 Correct 16 ms 26968 KB Output is correct
18 Correct 22 ms 27228 KB Output is correct
19 Correct 22 ms 26716 KB Output is correct
20 Correct 15 ms 26972 KB Output is correct
21 Correct 22 ms 26972 KB Output is correct
22 Correct 19 ms 26972 KB Output is correct
23 Correct 17 ms 26972 KB Output is correct
24 Correct 18 ms 26712 KB Output is correct
25 Correct 18 ms 26816 KB Output is correct
26 Correct 17 ms 26968 KB Output is correct
27 Correct 24 ms 26968 KB Output is correct
28 Correct 19 ms 26712 KB Output is correct
29 Correct 25 ms 27520 KB Output is correct
30 Correct 15 ms 26972 KB Output is correct
31 Correct 22 ms 27244 KB Output is correct
32 Correct 20 ms 27224 KB Output is correct
33 Correct 17 ms 26972 KB Output is correct
34 Correct 23 ms 27032 KB Output is correct
35 Correct 22 ms 26972 KB Output is correct
36 Correct 16 ms 26968 KB Output is correct
37 Correct 25 ms 26972 KB Output is correct
38 Correct 1581 ms 127568 KB Output is correct
39 Execution timed out 5063 ms 644204 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 26716 KB Output is correct
2 Correct 19 ms 26712 KB Output is correct
3 Correct 24 ms 26976 KB Output is correct
4 Correct 20 ms 26716 KB Output is correct
5 Correct 22 ms 26972 KB Output is correct
6 Correct 14 ms 26788 KB Output is correct
7 Correct 16 ms 26968 KB Output is correct
8 Correct 14 ms 26716 KB Output is correct
9 Correct 13 ms 26688 KB Output is correct
10 Correct 14 ms 26932 KB Output is correct
11 Correct 20 ms 26716 KB Output is correct
12 Correct 19 ms 27048 KB Output is correct
13 Correct 49 ms 27492 KB Output is correct
14 Correct 51 ms 27732 KB Output is correct
15 Correct 49 ms 27472 KB Output is correct
16 Correct 137 ms 62528 KB Output is correct
17 Correct 363 ms 80832 KB Output is correct
18 Runtime error 100 ms 116816 KB Execution killed with signal 6
19 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 26716 KB Output is correct
2 Correct 14 ms 26712 KB Output is correct
3 Correct 15 ms 26716 KB Output is correct
4 Correct 22 ms 27228 KB Output is correct
5 Correct 28 ms 27736 KB Output is correct
6 Correct 15 ms 26972 KB Output is correct
7 Correct 16 ms 26888 KB Output is correct
8 Correct 31 ms 27640 KB Output is correct
9 Correct 1481 ms 127544 KB Output is correct
10 Execution timed out 5055 ms 538316 KB Time limit exceeded
11 Halted 0 ms 0 KB -