oj.uz

답안 #1077611

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1077611 2024-08-27T08:20:52 Z BABY_GANGSTER Jail (JOI22_jail) C++14
49 / 100
 5000 ms 787948 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 depth[120007];
int head[120007];
int pos[120007];
int tout[120007];
vector<int> v2[120007];
vector<ib> v[480007][2];
int heavy[120007];
ib a[120007];
int f[120007];
int sz[120007];
int mxz[120007];
int c[480007][2];
int par[480007];
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});
       //     cout<<node<<" "<<x<<" "<<1<<"\n";
            ///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 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();
    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:114:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  114 |         if(pos[f]==0)
      |         ^~
jail.cpp:116:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  116 |             tout[x]=dem;
      |             ^~~~
jail.cpp: In member function 'void IT::setup(int, int, int)':
jail.cpp:130:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  130 |         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:159:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  159 |         int mid=l+r>>1;
      |                 ~^~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 25688 KB Output is correct
2 Correct 15 ms 25692 KB Output is correct
3 Correct 13 ms 25888 KB Output is correct
4 Correct 20 ms 26232 KB Output is correct
5 Correct 27 ms 26716 KB Output is correct
6 Correct 15 ms 25948 KB Output is correct
7 Correct 16 ms 25948 KB Output is correct
8 Correct 19 ms 26460 KB Output is correct
9 Correct 1400 ms 126016 KB Output is correct
10 Execution timed out 5096 ms 787948 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 25840 KB Output is correct
2 Correct 15 ms 25884 KB Output is correct
3 Correct 16 ms 25884 KB Output is correct
4 Correct 15 ms 25948 KB Output is correct
5 Correct 16 ms 25948 KB Output is correct
6 Correct 15 ms 25748 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 15 ms 25856 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 15 ms 25980 KB Output is correct
11 Correct 17 ms 25740 KB Output is correct
12 Correct 15 ms 25948 KB Output is correct
13 Correct 15 ms 25948 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 25840 KB Output is correct
2 Correct 15 ms 25884 KB Output is correct
3 Correct 16 ms 25884 KB Output is correct
4 Correct 15 ms 25948 KB Output is correct
5 Correct 16 ms 25948 KB Output is correct
6 Correct 15 ms 25748 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 15 ms 25856 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 15 ms 25980 KB Output is correct
11 Correct 17 ms 25740 KB Output is correct
12 Correct 15 ms 25948 KB Output is correct
13 Correct 15 ms 25948 KB Output is correct
14 Correct 15 ms 25692 KB Output is correct
15 Correct 15 ms 25692 KB Output is correct
16 Correct 16 ms 25944 KB Output is correct
17 Correct 15 ms 25888 KB Output is correct
18 Correct 15 ms 25948 KB Output is correct
19 Correct 14 ms 25768 KB Output is correct
20 Correct 20 ms 25944 KB Output is correct
21 Correct 16 ms 25948 KB Output is correct
22 Correct 16 ms 25944 KB Output is correct
23 Correct 16 ms 25692 KB Output is correct
24 Correct 15 ms 25688 KB Output is correct
25 Correct 14 ms 25804 KB Output is correct
26 Correct 13 ms 25960 KB Output is correct
27 Correct 15 ms 25948 KB Output is correct
28 Correct 15 ms 25692 KB Output is correct

Subtask #4
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 25840 KB Output is correct
2 Correct 15 ms 25884 KB Output is correct
3 Correct 16 ms 25884 KB Output is correct
4 Correct 15 ms 25948 KB Output is correct
5 Correct 16 ms 25948 KB Output is correct
6 Correct 15 ms 25748 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 15 ms 25856 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 15 ms 25980 KB Output is correct
11 Correct 17 ms 25740 KB Output is correct
12 Correct 15 ms 25948 KB Output is correct
13 Correct 15 ms 25948 KB Output is correct
14 Correct 15 ms 25692 KB Output is correct
15 Correct 15 ms 25692 KB Output is correct
16 Correct 16 ms 25944 KB Output is correct
17 Correct 15 ms 25888 KB Output is correct
18 Correct 15 ms 25948 KB Output is correct
19 Correct 14 ms 25768 KB Output is correct
20 Correct 20 ms 25944 KB Output is correct
21 Correct 16 ms 25948 KB Output is correct
22 Correct 16 ms 25944 KB Output is correct
23 Correct 16 ms 25692 KB Output is correct
24 Correct 15 ms 25688 KB Output is correct
25 Correct 14 ms 25804 KB Output is correct
26 Correct 13 ms 25960 KB Output is correct
27 Correct 15 ms 25948 KB Output is correct
28 Correct 15 ms 25692 KB Output is correct
29 Correct 21 ms 26460 KB Output is correct
30 Correct 16 ms 25852 KB Output is correct
31 Correct 18 ms 26204 KB Output is correct
32 Correct 18 ms 26144 KB Output is correct
33 Correct 14 ms 25948 KB Output is correct
34 Correct 17 ms 25948 KB Output is correct
35 Correct 20 ms 26112 KB Output is correct
36 Correct 15 ms 25944 KB Output is correct
37 Correct 24 ms 25948 KB Output is correct

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 25840 KB Output is correct
2 Correct 15 ms 25884 KB Output is correct
3 Correct 16 ms 25884 KB Output is correct
4 Correct 15 ms 25948 KB Output is correct
5 Correct 16 ms 25948 KB Output is correct
6 Correct 15 ms 25748 KB Output is correct
7 Correct 15 ms 25948 KB Output is correct
8 Correct 15 ms 25856 KB Output is correct
9 Correct 15 ms 25948 KB Output is correct
10 Correct 15 ms 25980 KB Output is correct
11 Correct 17 ms 25740 KB Output is correct
12 Correct 15 ms 25948 KB Output is correct
13 Correct 15 ms 25948 KB Output is correct
14 Correct 15 ms 25692 KB Output is correct
15 Correct 15 ms 25692 KB Output is correct
16 Correct 16 ms 25944 KB Output is correct
17 Correct 15 ms 25888 KB Output is correct
18 Correct 15 ms 25948 KB Output is correct
19 Correct 14 ms 25768 KB Output is correct
20 Correct 20 ms 25944 KB Output is correct
21 Correct 16 ms 25948 KB Output is correct
22 Correct 16 ms 25944 KB Output is correct
23 Correct 16 ms 25692 KB Output is correct
24 Correct 15 ms 25688 KB Output is correct
25 Correct 14 ms 25804 KB Output is correct
26 Correct 13 ms 25960 KB Output is correct
27 Correct 15 ms 25948 KB Output is correct
28 Correct 15 ms 25692 KB Output is correct
29 Correct 21 ms 26460 KB Output is correct
30 Correct 16 ms 25852 KB Output is correct
31 Correct 18 ms 26204 KB Output is correct
32 Correct 18 ms 26144 KB Output is correct
33 Correct 14 ms 25948 KB Output is correct
34 Correct 17 ms 25948 KB Output is correct
35 Correct 20 ms 26112 KB Output is correct
36 Correct 15 ms 25944 KB Output is correct
37 Correct 24 ms 25948 KB Output is correct
38 Correct 1413 ms 126036 KB Output is correct
39 Execution timed out 5053 ms 784204 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 25688 KB Output is correct
2 Correct 13 ms 25712 KB Output is correct
3 Correct 13 ms 25692 KB Output is correct
4 Correct 13 ms 25692 KB Output is correct
5 Correct 16 ms 26004 KB Output is correct
6 Correct 13 ms 25944 KB Output is correct
7 Correct 13 ms 25944 KB Output is correct
8 Correct 15 ms 25692 KB Output is correct
9 Correct 13 ms 25688 KB Output is correct
10 Correct 13 ms 25692 KB Output is correct
11 Correct 13 ms 25684 KB Output is correct
12 Correct 14 ms 25948 KB Output is correct
13 Correct 30 ms 26512 KB Output is correct
14 Correct 40 ms 26696 KB Output is correct
15 Correct 34 ms 26468 KB Output is correct
16 Runtime error 123 ms 108372 KB Execution killed with signal 6
17 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 25688 KB Output is correct
2 Correct 15 ms 25692 KB Output is correct
3 Correct 13 ms 25888 KB Output is correct
4 Correct 20 ms 26232 KB Output is correct
5 Correct 27 ms 26716 KB Output is correct
6 Correct 15 ms 25948 KB Output is correct
7 Correct 16 ms 25948 KB Output is correct
8 Correct 19 ms 26460 KB Output is correct
9 Correct 1400 ms 126016 KB Output is correct
10 Execution timed out 5096 ms 787948 KB Time limit exceeded
11 Halted 0 ms 0 KB -