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답안 #1005621

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1005621 2024-06-22T16:18:32 Z modwwe Tourism (JOI23_tourism) C++17
35 / 100
 5000 ms 22900 KB 
///https://www.instagram.com/_modwwe/
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2")
#include<bits/stdc++.h>
//#define int long long
//#define ll long long
#define down cout<<'\n';
#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".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
void phongbeo();
const int mod2=1e9+7;
const int  mod1=998244353;
struct icd
{
    int a,b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a,b,c;
};
struct id
{
    int a,c;
};
struct ie
{
    int a,b,c, d,e,f;

};
int n,m,s1,s2,s4,s3,sf,k,r,mid,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,l;
int  i,s10,s12;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
    //  fin(task),fou(task);
#endif
    ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
    /// cin>>s1;
    // modwwe
    phongbeo();
}
int t[400007];
int depth[100007];
ic a[100007];
int c[100007];
ib euler[100007];
int d[100007];
int st[17][100007];
int ans[100007];
int S;
int b[100007];
int sl[100007];
vector<int> v[100007];
int e[100007];
int pre[100007];
int nxt[100007];
bool cmp(ic a,ic b)
{
    if(a.a / S != b.a / S) return (a.a < b.a);
    else if(!((a.a / S) & 1)) return (a.b < b.b);
    else return (a.b > b.b);
}
void upd(int node,int l,int r,int l1,int r1,int cc)
{
    if(l>=l1&&r<=r1)
    {
        if(cc==1) t[node]=l;
         else t[node]=0;
        return;
    }
    int mid=l+r>>1;
    if(mid>=r1)
        upd(node<<1,l,mid,l1,r1,cc);
    else
        upd(node<<1|1,mid+1,r,l1,r1,cc);
    t[node]=max(t[node<<1],t[node<<1|1]);
}
int get1(int node,int l,int r,int l1,int r1)
{
    if(l>r1||r<l1) return 0;
    if(l>=l1&&r<=r1) return t[node];

    int mid=l+r>>1;
 int ss3=0;
    if(t[node<<1|1]!=0) ss3=get1(node<<1|1,mid+1,r,l1,r1);
    if(ss3!=0) return ss3;
else if(t[node<<1]!=0) return get1(node<<1,l,mid,l1,r1);
 else return ss3;
}
void dfs(int x,int y)
{
    st[0][x]=y;
    depth[x]=depth[y]+1;
    euler[x].a=++dem;
    c[dem]=x;
    for(auto f:v[x])
        if(f!=y)
            dfs(f,x);
    euler[x].b=dem;
}
int lca(int x,int y,int cc)
{
    if(x==0||x==n+1||y==0||y==n+1) return 1;
    if(depth[x]<depth[y]) swap(x,y),cc=0;
    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];
    if(cc==0) return y;
    else
        return x;
}
int lca2(int x,int y)
{
    if(x==0 )return y;
    if(y==0 )return x;
    if(depth[x]<depth[y]) swap(x,y);
    int ss=depth[x]-depth[y];
    if(ss!=0)
    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 build2(int node,int l,int r)
{
    if(l==r)
    {
        lz[node]=b[l];
        return;
    }
    int mid=l+r>>1;
    build2(node<<1,l,mid);
    build2(node<<1|1,mid+1,r);
    lz[node]=lca2(lz[node<<1],lz[node<<1|1]);
}
int get_lca(int node,int l,int r,int l1,int r1)
{
    if(l>r1||r<l1) return 0;
    if(l>=l1&&r<=r1) return lz[node];
    int mid=l+r>>1;
    return lca2(get_lca(node<<1,l,mid,l1,r1),get_lca(node<<1|1,mid+1,r,l1,r1));
}*/
void add(int x)
{
    s2=get1(1,1,n,1,euler[x].a);
    /// s3=get2(1,1,n,euler[x].a,n);
    sl[x]++;
    if(sl[x]==1)
    upd(1,1,n,euler[x].a,euler[x].a,1);
    if(d[x]!=0||sl[x]>1) return;
    s2=c[s2];
    s3=nxt[s2];
    pre[x]=s2;
    nxt[x]=s3;
    nxt[s2]=x;
    pre[s3]=x;
//if(l==3&&x==1) cout<<s2<<" "<<s3<<" "<<x,down
    s2=lca(x,s2,1);
    s3=lca(x,s3,1);
    if(depth[s2]<depth[s3]) swap(s2,s3);
    if(depth[x]>=depth[s2])
    {
        s4+=depth[x]-depth[s2]+1;
        d[x]=s2;
        e[s2]=x;
    }
}
void del(int x)
{sl[x]--;
 if(sl[x]==0)
    upd(1,1,n,euler[x].a,euler[x].a,-1);
    s5=d[x];
    //s2=get1(1,1,n,euler[s5].a,euler[x].a);
    //s3=get2(1,1,n,euler[x].a,euler[s5].b);
    if(sl[x]>=1) return;
    s2=pre[x];
    s3=nxt[x];
    nxt[s2]=s3;
    if(s3!=0) pre[s3]=s2;
    pre[x]=0;
    nxt[x]=0;
    s9=s2;
    if(d[x]==0)return;
    d[x]=0;
    e[s5]=0;
    s4-=(depth[x]-depth[s5]+1);
    s2=lca(s2,x,1);
    s3=lca(s3,x,1);
    if(max(depth[s2],depth[s3])<=depth[s5]) return;
    if(st[0][s2]==s9&&depth[s2]>=depth[s3]&&d[s2]==0)
    {
        s2=s9;
        s4+=depth[s2]-depth[s5]+1;
        d[s2]=s5;
        e[s5]=s2;
        return;
    }
    if(depth[s2]<depth[s3])swap(s2,s3);
    if(depth[s5]<depth[s2])
    {
        s3=e[s2];
        e[s2]=0;
        e[s5]=s3;
        d[s3]=s5;
        s4+=(depth[s2]-depth[s5]);
    }
}
void go(int x,int y)
{
    while(r<y)
    {
        ++r;
        add(b[r]);

    }
    while(l>x)
    {
        --l;

        add(b[l]);
        //cout<<l<<" "<<s4,down

    }
    //cout<<s4<<" "<<x<<" "<<y,down
    while(l<x)
    {
        del(b[l]);
        ++l;
    }
    while(r>y)
    {
        del(b[r]);

        --r;
    }

}
int cinn()
{
    char c;
    while (c = getchar(), c < '0' || c > '9');
    int x = c - '0';
    while (c = getchar(), c >= '0' && c <= '9')
        x = x * 10 + c - '0';
    return x;
}
void phongbeo()
{
  cin>>n>>m>>k;
    S=sqrt(m);
    for(int i=1; i<n; ++i)
        cin>>l>>r,v[l].pb(r),v[r].pb(l);
    dfs(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]];
    for(int i=1; i<=m; ++i)
        cin>>b[i];
    for(int i=1; i<=k; ++i)
        cin>>a[i].a>>a[i].b,a[i].c=i;
    sort(a+1,a+1+k,cmp);
    l=1;
    r=0;
    for(int i=1; i<=k; ++i)
    {
        go(a[i].a,a[i].b);
        s3=t[1];
        s5=nxt[0];
        s3=c[s3];
        s3=lca2(s3,s5);
        ans[a[i].c]=s4+depth[1]-depth[s3];
    }
    for(int i=1; i<=k; ++i)
        printf("%d",ans[i]),
               printf("\n");
}

/*
8 8 2
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 6 4 3 5 2 4 7
2 8
1 2

*/

Compilation message

tourism.cpp:46:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   46 | main()
      | ^~~~
tourism.cpp: In function 'void upd(int, int, int, int, int, int)':
tourism.cpp:85:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   85 |     int mid=l+r>>1;
      |             ~^~
tourism.cpp: In function 'int get1(int, int, int, int, int)':
tourism.cpp:97:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   97 |     int mid=l+r>>1;
      |             ~^~
tourism.cpp: In function 'void del(int)':
tourism.cpp:195:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  195 |  if(sl[x]==0)
      |  ^~
tourism.cpp:197:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  197 |     s5=d[x];
      |     ^~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 1 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12632 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 2 ms 12636 KB Output is correct
8 Correct 2 ms 12764 KB Output is correct
9 Correct 2 ms 12680 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 2 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 2 ms 12632 KB Output is correct
22 Correct 2 ms 12636 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 12760 KB Output is correct
25 Correct 3 ms 12820 KB Output is correct
26 Correct 2 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 1 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12632 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 2 ms 12636 KB Output is correct
8 Correct 2 ms 12764 KB Output is correct
9 Correct 2 ms 12680 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 2 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 2 ms 12632 KB Output is correct
22 Correct 2 ms 12636 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 12760 KB Output is correct
25 Correct 3 ms 12820 KB Output is correct
26 Correct 2 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct
30 Correct 9 ms 12892 KB Output is correct
31 Correct 10 ms 13144 KB Output is correct
32 Correct 14 ms 12892 KB Output is correct
33 Correct 14 ms 12920 KB Output is correct
34 Correct 12 ms 12888 KB Output is correct
35 Correct 4 ms 12892 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 3 ms 12892 KB Output is correct
38 Correct 9 ms 12968 KB Output is correct
39 Correct 11 ms 12892 KB Output is correct
40 Correct 11 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12980 KB Output is correct
43 Correct 4 ms 12892 KB Output is correct
44 Correct 12 ms 12892 KB Output is correct
45 Correct 12 ms 12892 KB Output is correct
46 Correct 12 ms 12892 KB Output is correct
47 Correct 4 ms 12892 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 5 ms 12892 KB Output is correct
50 Correct 14 ms 12932 KB Output is correct
51 Correct 14 ms 12892 KB Output is correct
52 Correct 13 ms 12932 KB Output is correct
53 Correct 11 ms 12932 KB Output is correct
54 Correct 14 ms 12892 KB Output is correct
55 Correct 12 ms 12928 KB Output is correct
56 Correct 2 ms 12636 KB Output is correct
57 Correct 2 ms 12892 KB Output is correct
58 Correct 3 ms 12928 KB Output is correct

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 3 ms 12636 KB Output is correct
4 Correct 2834 ms 18580 KB Output is correct
5 Correct 1972 ms 20812 KB Output is correct
6 Correct 2894 ms 21328 KB Output is correct
7 Correct 4289 ms 22900 KB Output is correct
8 Correct 4372 ms 22884 KB Output is correct
9 Correct 4341 ms 22868 KB Output is correct
10 Correct 4337 ms 22880 KB Output is correct
11 Correct 4284 ms 22868 KB Output is correct
12 Correct 506 ms 22864 KB Output is correct
13 Correct 528 ms 22892 KB Output is correct
14 Correct 556 ms 22868 KB Output is correct
15 Correct 39 ms 21336 KB Output is correct
16 Correct 146 ms 22352 KB Output is correct
17 Correct 130 ms 13940 KB Output is correct

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 84 ms 15452 KB Output is correct
3 Correct 122 ms 15852 KB Output is correct
4 Correct 102 ms 16472 KB Output is correct
5 Correct 58 ms 18000 KB Output is correct
6 Correct 70 ms 18008 KB Output is correct
7 Correct 89 ms 18000 KB Output is correct
8 Correct 102 ms 18000 KB Output is correct
9 Correct 99 ms 18008 KB Output is correct
10 Correct 98 ms 18000 KB Output is correct
11 Correct 151 ms 18012 KB Output is correct
12 Correct 148 ms 18012 KB Output is correct
13 Correct 151 ms 18012 KB Output is correct
14 Correct 168 ms 18256 KB Output is correct
15 Correct 198 ms 19284 KB Output is correct
16 Correct 113 ms 18008 KB Output is correct
17 Correct 122 ms 18004 KB Output is correct
18 Correct 113 ms 18260 KB Output is correct
19 Correct 52 ms 17756 KB Output is correct
20 Correct 62 ms 17968 KB Output is correct
21 Correct 64 ms 17820 KB Output is correct
22 Correct 73 ms 17752 KB Output is correct
23 Correct 80 ms 17964 KB Output is correct
24 Correct 89 ms 17756 KB Output is correct
25 Correct 95 ms 17948 KB Output is correct
26 Correct 118 ms 17744 KB Output is correct
27 Correct 150 ms 17960 KB Output is correct
28 Correct 169 ms 17752 KB Output is correct
29 Correct 197 ms 17756 KB Output is correct
30 Correct 212 ms 18036 KB Output is correct
31 Correct 217 ms 18084 KB Output is correct
32 Correct 207 ms 18260 KB Output is correct
33 Correct 206 ms 18512 KB Output is correct
34 Correct 204 ms 19228 KB Output is correct

Subtask #5
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 4151 ms 17268 KB Output is correct
5 Correct 4310 ms 17280 KB Output is correct
6 Execution timed out 5058 ms 18260 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 1 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12632 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 2 ms 12636 KB Output is correct
8 Correct 2 ms 12764 KB Output is correct
9 Correct 2 ms 12680 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12636 KB Output is correct
16 Correct 2 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 2 ms 12632 KB Output is correct
22 Correct 2 ms 12636 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 12760 KB Output is correct
25 Correct 3 ms 12820 KB Output is correct
26 Correct 2 ms 12636 KB Output is correct
27 Correct 2 ms 12636 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 2 ms 12636 KB Output is correct
30 Correct 9 ms 12892 KB Output is correct
31 Correct 10 ms 13144 KB Output is correct
32 Correct 14 ms 12892 KB Output is correct
33 Correct 14 ms 12920 KB Output is correct
34 Correct 12 ms 12888 KB Output is correct
35 Correct 4 ms 12892 KB Output is correct
36 Correct 4 ms 12892 KB Output is correct
37 Correct 3 ms 12892 KB Output is correct
38 Correct 9 ms 12968 KB Output is correct
39 Correct 11 ms 12892 KB Output is correct
40 Correct 11 ms 12892 KB Output is correct
41 Correct 4 ms 12892 KB Output is correct
42 Correct 4 ms 12980 KB Output is correct
43 Correct 4 ms 12892 KB Output is correct
44 Correct 12 ms 12892 KB Output is correct
45 Correct 12 ms 12892 KB Output is correct
46 Correct 12 ms 12892 KB Output is correct
47 Correct 4 ms 12892 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 5 ms 12892 KB Output is correct
50 Correct 14 ms 12932 KB Output is correct
51 Correct 14 ms 12892 KB Output is correct
52 Correct 13 ms 12932 KB Output is correct
53 Correct 11 ms 12932 KB Output is correct
54 Correct 14 ms 12892 KB Output is correct
55 Correct 12 ms 12928 KB Output is correct
56 Correct 2 ms 12636 KB Output is correct
57 Correct 2 ms 12892 KB Output is correct
58 Correct 3 ms 12928 KB Output is correct
59 Correct 2 ms 12636 KB Output is correct
60 Correct 2 ms 12636 KB Output is correct
61 Correct 3 ms 12636 KB Output is correct
62 Correct 2834 ms 18580 KB Output is correct
63 Correct 1972 ms 20812 KB Output is correct
64 Correct 2894 ms 21328 KB Output is correct
65 Correct 4289 ms 22900 KB Output is correct
66 Correct 4372 ms 22884 KB Output is correct
67 Correct 4341 ms 22868 KB Output is correct
68 Correct 4337 ms 22880 KB Output is correct
69 Correct 4284 ms 22868 KB Output is correct
70 Correct 506 ms 22864 KB Output is correct
71 Correct 528 ms 22892 KB Output is correct
72 Correct 556 ms 22868 KB Output is correct
73 Correct 39 ms 21336 KB Output is correct
74 Correct 146 ms 22352 KB Output is correct
75 Correct 130 ms 13940 KB Output is correct
76 Correct 2 ms 12632 KB Output is correct
77 Correct 84 ms 15452 KB Output is correct
78 Correct 122 ms 15852 KB Output is correct
79 Correct 102 ms 16472 KB Output is correct
80 Correct 58 ms 18000 KB Output is correct
81 Correct 70 ms 18008 KB Output is correct
82 Correct 89 ms 18000 KB Output is correct
83 Correct 102 ms 18000 KB Output is correct
84 Correct 99 ms 18008 KB Output is correct
85 Correct 98 ms 18000 KB Output is correct
86 Correct 151 ms 18012 KB Output is correct
87 Correct 148 ms 18012 KB Output is correct
88 Correct 151 ms 18012 KB Output is correct
89 Correct 168 ms 18256 KB Output is correct
90 Correct 198 ms 19284 KB Output is correct
91 Correct 113 ms 18008 KB Output is correct
92 Correct 122 ms 18004 KB Output is correct
93 Correct 113 ms 18260 KB Output is correct
94 Correct 52 ms 17756 KB Output is correct
95 Correct 62 ms 17968 KB Output is correct
96 Correct 64 ms 17820 KB Output is correct
97 Correct 73 ms 17752 KB Output is correct
98 Correct 80 ms 17964 KB Output is correct
99 Correct 89 ms 17756 KB Output is correct
100 Correct 95 ms 17948 KB Output is correct
101 Correct 118 ms 17744 KB Output is correct
102 Correct 150 ms 17960 KB Output is correct
103 Correct 169 ms 17752 KB Output is correct
104 Correct 197 ms 17756 KB Output is correct
105 Correct 212 ms 18036 KB Output is correct
106 Correct 217 ms 18084 KB Output is correct
107 Correct 207 ms 18260 KB Output is correct
108 Correct 206 ms 18512 KB Output is correct
109 Correct 204 ms 19228 KB Output is correct
110 Correct 2 ms 12636 KB Output is correct
111 Correct 2 ms 12636 KB Output is correct
112 Correct 2 ms 12636 KB Output is correct
113 Correct 4151 ms 17268 KB Output is correct
114 Correct 4310 ms 17280 KB Output is correct
115 Execution timed out 5058 ms 18260 KB Time limit exceeded
116 Halted 0 ms 0 KB -