oj.uz

Submission #1077650

# Submission time Handle Problem Language Result Execution time Memory
1077650 2024-08-27T08:29:38 Z BABY_GANGSTER Jail (JOI22_jail) C++17
60 / 100
 5000 ms 839504 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*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];
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(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();
    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 11 ms 27000 KB Output is correct
2 Correct 14 ms 26960 KB Output is correct
3 Correct 15 ms 26972 KB Output is correct
4 Correct 18 ms 27224 KB Output is correct
5 Correct 32 ms 25996 KB Output is correct
6 Correct 14 ms 25948 KB Output is correct
7 Correct 12 ms 27224 KB Output is correct
8 Correct 18 ms 27740 KB Output is correct
9 Correct 1307 ms 126036 KB Output is correct
10 Execution timed out 5112 ms 538548 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 26968 KB Output is correct
2 Correct 8 ms 26972 KB Output is correct
3 Correct 10 ms 27056 KB Output is correct
4 Correct 9 ms 27228 KB Output is correct
5 Correct 10 ms 27224 KB Output is correct
6 Correct 9 ms 27228 KB Output is correct
7 Correct 11 ms 27228 KB Output is correct
8 Correct 10 ms 27228 KB Output is correct
9 Correct 9 ms 27224 KB Output is correct
10 Correct 9 ms 27072 KB Output is correct
11 Correct 10 ms 27228 KB Output is correct
12 Correct 9 ms 26972 KB Output is correct
13 Correct 10 ms 27220 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 26968 KB Output is correct
2 Correct 8 ms 26972 KB Output is correct
3 Correct 10 ms 27056 KB Output is correct
4 Correct 9 ms 27228 KB Output is correct
5 Correct 10 ms 27224 KB Output is correct
6 Correct 9 ms 27228 KB Output is correct
7 Correct 11 ms 27228 KB Output is correct
8 Correct 10 ms 27228 KB Output is correct
9 Correct 9 ms 27224 KB Output is correct
10 Correct 9 ms 27072 KB Output is correct
11 Correct 10 ms 27228 KB Output is correct
12 Correct 9 ms 26972 KB Output is correct
13 Correct 10 ms 27220 KB Output is correct
14 Correct 9 ms 26972 KB Output is correct
15 Correct 9 ms 26972 KB Output is correct
16 Correct 9 ms 27228 KB Output is correct
17 Correct 9 ms 27156 KB Output is correct
18 Correct 10 ms 27228 KB Output is correct
19 Correct 9 ms 26972 KB Output is correct
20 Correct 10 ms 27228 KB Output is correct
21 Correct 9 ms 27228 KB Output is correct
22 Correct 10 ms 27228 KB Output is correct
23 Correct 8 ms 26972 KB Output is correct
24 Correct 9 ms 27224 KB Output is correct
25 Correct 9 ms 27228 KB Output is correct
26 Correct 10 ms 27248 KB Output is correct
27 Correct 9 ms 27228 KB Output is correct
28 Correct 9 ms 26972 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 26968 KB Output is correct
2 Correct 8 ms 26972 KB Output is correct
3 Correct 10 ms 27056 KB Output is correct
4 Correct 9 ms 27228 KB Output is correct
5 Correct 10 ms 27224 KB Output is correct
6 Correct 9 ms 27228 KB Output is correct
7 Correct 11 ms 27228 KB Output is correct
8 Correct 10 ms 27228 KB Output is correct
9 Correct 9 ms 27224 KB Output is correct
10 Correct 9 ms 27072 KB Output is correct
11 Correct 10 ms 27228 KB Output is correct
12 Correct 9 ms 26972 KB Output is correct
13 Correct 10 ms 27220 KB Output is correct
14 Correct 9 ms 26972 KB Output is correct
15 Correct 9 ms 26972 KB Output is correct
16 Correct 9 ms 27228 KB Output is correct
17 Correct 9 ms 27156 KB Output is correct
18 Correct 10 ms 27228 KB Output is correct
19 Correct 9 ms 26972 KB Output is correct
20 Correct 10 ms 27228 KB Output is correct
21 Correct 9 ms 27228 KB Output is correct
22 Correct 10 ms 27228 KB Output is correct
23 Correct 8 ms 26972 KB Output is correct
24 Correct 9 ms 27224 KB Output is correct
25 Correct 9 ms 27228 KB Output is correct
26 Correct 10 ms 27248 KB Output is correct
27 Correct 9 ms 27228 KB Output is correct
28 Correct 9 ms 26972 KB Output is correct
29 Correct 13 ms 27740 KB Output is correct
30 Correct 10 ms 27228 KB Output is correct
31 Correct 11 ms 27328 KB Output is correct
32 Correct 11 ms 27228 KB Output is correct
33 Correct 10 ms 27228 KB Output is correct
34 Correct 10 ms 27224 KB Output is correct
35 Correct 14 ms 27228 KB Output is correct
36 Correct 9 ms 27228 KB Output is correct
37 Correct 9 ms 27292 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 26968 KB Output is correct
2 Correct 8 ms 26972 KB Output is correct
3 Correct 10 ms 27056 KB Output is correct
4 Correct 9 ms 27228 KB Output is correct
5 Correct 10 ms 27224 KB Output is correct
6 Correct 9 ms 27228 KB Output is correct
7 Correct 11 ms 27228 KB Output is correct
8 Correct 10 ms 27228 KB Output is correct
9 Correct 9 ms 27224 KB Output is correct
10 Correct 9 ms 27072 KB Output is correct
11 Correct 10 ms 27228 KB Output is correct
12 Correct 9 ms 26972 KB Output is correct
13 Correct 10 ms 27220 KB Output is correct
14 Correct 9 ms 26972 KB Output is correct
15 Correct 9 ms 26972 KB Output is correct
16 Correct 9 ms 27228 KB Output is correct
17 Correct 9 ms 27156 KB Output is correct
18 Correct 10 ms 27228 KB Output is correct
19 Correct 9 ms 26972 KB Output is correct
20 Correct 10 ms 27228 KB Output is correct
21 Correct 9 ms 27228 KB Output is correct
22 Correct 10 ms 27228 KB Output is correct
23 Correct 8 ms 26972 KB Output is correct
24 Correct 9 ms 27224 KB Output is correct
25 Correct 9 ms 27228 KB Output is correct
26 Correct 10 ms 27248 KB Output is correct
27 Correct 9 ms 27228 KB Output is correct
28 Correct 9 ms 26972 KB Output is correct
29 Correct 13 ms 27740 KB Output is correct
30 Correct 10 ms 27228 KB Output is correct
31 Correct 11 ms 27328 KB Output is correct
32 Correct 11 ms 27228 KB Output is correct
33 Correct 10 ms 27228 KB Output is correct
34 Correct 10 ms 27224 KB Output is correct
35 Correct 14 ms 27228 KB Output is correct
36 Correct 9 ms 27228 KB Output is correct
37 Correct 9 ms 27292 KB Output is correct
38 Correct 1250 ms 126024 KB Output is correct
39 Execution timed out 5124 ms 839504 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 26968 KB Output is correct
2 Correct 15 ms 25692 KB Output is correct
3 Correct 22 ms 25688 KB Output is correct
4 Correct 21 ms 26204 KB Output is correct
5 Correct 16 ms 25688 KB Output is correct
6 Correct 13 ms 26460 KB Output is correct
7 Correct 13 ms 26296 KB Output is correct
8 Correct 13 ms 26204 KB Output is correct
9 Correct 14 ms 26412 KB Output is correct
10 Correct 12 ms 26456 KB Output is correct
11 Correct 13 ms 25692 KB Output is correct
12 Correct 22 ms 26108 KB Output is correct
13 Correct 43 ms 25960 KB Output is correct
14 Correct 40 ms 26460 KB Output is correct
15 Correct 33 ms 26460 KB Output is correct
16 Correct 110 ms 52696 KB Output is correct
17 Correct 364 ms 69824 KB Output is correct
18 Correct 580 ms 93360 KB Output is correct
19 Correct 188 ms 56920 KB Output is correct
20 Correct 158 ms 57272 KB Output is correct
21 Correct 197 ms 57356 KB Output is correct
22 Correct 318 ms 71916 KB Output is correct
23 Correct 236 ms 72432 KB Output is correct
24 Correct 258 ms 72516 KB Output is correct
25 Correct 241 ms 73820 KB Output is correct
26 Correct 241 ms 73268 KB Output is correct
27 Correct 181 ms 61124 KB Output is correct
28 Correct 194 ms 63212 KB Output is correct
29 Correct 196 ms 58780 KB Output is correct
30 Correct 188 ms 56528 KB Output is correct
31 Correct 173 ms 57036 KB Output is correct
32 Correct 163 ms 57036 KB Output is correct
33 Correct 216 ms 57524 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 27000 KB Output is correct
2 Correct 14 ms 26960 KB Output is correct
3 Correct 15 ms 26972 KB Output is correct
4 Correct 18 ms 27224 KB Output is correct
5 Correct 32 ms 25996 KB Output is correct
6 Correct 14 ms 25948 KB Output is correct
7 Correct 12 ms 27224 KB Output is correct
8 Correct 18 ms 27740 KB Output is correct
9 Correct 1307 ms 126036 KB Output is correct
10 Execution timed out 5112 ms 538548 KB Time limit exceeded
11 Halted 0 ms 0 KB -