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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#370891#4909. 《关于因为与去年互测zjk撞题而不得不改题这回事》27455185850 1504ms336004kbC++203.3kb2024-03-29 18:52:262024-03-29 18:52:28

Judging History

你现在查看的是最新测评结果

  • [2024-03-29 18:52:28]
  • 评测
  • 测评结果:0
  • 用时:1504ms
  • 内存:336004kb
  • [2024-03-29 18:52:26]
  • 提交

answer

#include<cstdio>
#include<algorithm>
#include<vector>
#include<queue>
using namespace std;
typedef long long ll;
const int N=1000001,M=31;
int n,m,tot,e[N];
ll b[N];
vector<int> a[N];
namespace ST
{
    int lg[N];
    ll a[N][M];
    int max(int x,int y)
    {
        return b[x]>b[y]?x:y;
    }
    void init()
    {
        for(int i=1;i<=n;++i) a[i][0]=e[i];
        for(int i=0;i<=20;++i)
        {
            for(int j=(1<<i);j<=min(1<<(i+1)-1,n);++j) lg[j]=i;
        }
        for(int i=1;i<=20;++i)
        {
            for(int j=1;j<=n;++j)
            {
                if(j+(1<<i)-1<=n) a[j][i]=max(a[j][i-1],a[j+(1<<(i-1))][i-1]);
            }
        }
    }
    int sum(int x,int y)
    {
        if(x>y) swap(x,y);
        return max(a[x][lg[y-x]],a[y-(1<<lg[y-x])+1][lg[y-x]]);
    }
}
struct tree
{
    int f,s,d,t,z,b;
}T[N];
struct str
{
    int x,y,t;
    str() {}
    str(int x,int y):x(x),y(y),t(ST::sum(T[x].b,T[y].b)) {}
    friend bool operator<(str x,str y)
    {
        return b[x.t]<b[y.t];
    }
};
priority_queue<str> Q1;
priority_queue<int> Q2;
void dfs1(int x)
{
    T[x].s=1;
    T[x].d=T[T[x].f].d+1;
    for(auto i:a[x])
    {
        if(i==T[x].f) continue;
        T[i].f=x;
        dfs1(i);
        T[x].s+=T[i].s;
        if(T[i].s>T[T[x].z].s) T[x].z=i;
    }
}
void dfs2(int x,int t)
{
    T[x].b=++tot;
    T[x].t=t;
    if(T[x].z) dfs2(T[x].z,t);
    for(auto i:a[x])
    {
        if(i==T[x].f||i==T[x].z) continue;
        dfs2(i,i);
    }
}
void add(int x,int y)
{
    Q1.push(str(x,y));
    Q2.push(b[ST::sum(T[x].b,T[y].b)]);
}
void solve(int x,int y)
{
    while(T[x].t!=T[y].t)
    {
        if(T[T[x].t].d>T[T[y].t].d)
        {
            add(T[x].t,x);
            x=T[T[x].t].f;
        }
        else
        {
            add(T[y].t,y);
            y=T[T[y].t].f;
        }
    }
    add(x,y);
}
int main()
{
    scanf("%d",&n);
    for(int i=1;i<=n-1;++i)
    {
        int x,y;
        scanf("%d%d",&x,&y);
        a[x].push_back(y);
        a[y].push_back(x);
    }
    for(int i=1;i<=n;++i)
    {
        scanf("%lld",&b[i]);
    }
    dfs1(1);
    dfs2(1,1);
    for(int i=1;i<=n;++i) e[T[i].b]=i;
    ST::init();
    scanf("%d",&m);
    ll las=0;
    for(int i=1;i<=m;++i)
    {
        int x,y,k;
        scanf("%d%d%d",&x,&y,&k);
        x=(x^las)%n+1,y=(y^las)%n+1;
        while(!Q1.empty()) Q1.pop();
        while(!Q2.empty()) Q2.pop();
        solve(x,y);
        while(!Q1.empty()&&Q2.size()<k*62)
        {
            auto [x,y,t]=Q1.top();
            Q1.pop();
            if(T[x].d>T[y].d) swap(x,y);
            if(T[x].d<T[t].d) add(x,T[t].f);
            if(T[t].d<T[y].d) add(T[t].z,y);
        }
        while(Q2.size()<k) Q2.push(0);
        ll s=0;
        for(int i=62;i>=0;--i)
        {
            static ll z[11];
            for(int j=1;j<=k;++j) z[j]=Q2.top(),Q2.pop();
            if((z[k]&(1ll<<i))!=0)
            {
                s|=(1ll<<i);
                for(int j=1;j<=k;++j) Q2.push(z[j]);
            }
            else
            {
                for(int j=1;j<=k;++j) Q2.push(z[j]&(~(1ll<<i)));
            }
        }
        printf("%lld\n",las=s);
    }
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 2ms
memory: 6180kb

input:

931
184 700
485 184
419 485
386 419
308 386
114 308
301 114
598 301
120 598
144 120
595 144
812 595
236 812
7 236
543 7
327 543
858 327
68 858
177 68
398 177
899 398
408 899
848 408
202 848
269 202
304 269
540 304
647 540
672 647
314 672
157 314
241 157
745 241
300 745
343 300
92 343
117 92
30 117
2...

output:

1073741824

result:

wrong answer 1st numbers differ - expected: '1152921504606846976', found: '1073741824'

Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Wrong Answer

Test #17:

score: 0
Wrong Answer
time: 45ms
memory: 46444kb

input:

99115
98506 98914
1961 98506
45808 1961
23027 45808
16655 23027
66393 16655
77250 66393
68284 77250
53684 68284
21189 53684
84955 21189
73464 84955
47574 73464
40651 47574
21101 40651
6589 21101
59680 6589
6185 59680
25529 6185
207 25529
33286 207
98459 33286
92565 98459
85446 92565
97388 85446
1630...

output:

4

result:

wrong answer 1st numbers differ - expected: '2050', found: '4'

Subtask #4:

score: 0
Skipped

Dependency #1:

0%

Subtask #5:

score: 0
Skipped

Dependency #1:

0%

Subtask #6:

score: 0
Skipped

Dependency #5:

0%

Subtask #7:

score: 0
Wrong Answer

Test #45:

score: 0
Wrong Answer
time: 1504ms
memory: 336004kb

input:

996678
2 1
3 1
4 1
5 1
6 3
7 5
8 5
9 5
10 7
11 8
12 9
13 1
14 2
15 7
16 4
17 5
18 17
19 16
20 2
21 1
22 1
23 9
24 17
25 19
26 10
27 9
28 7
29 25
30 25
31 4
32 11
33 31
34 21
35 13
36 19
37 25
38 10
39 11
40 20
41 35
42 1
43 19
44 20
45 41
46 1
47 19
48 5
49 28
50 21
51 33
52 7
53 14
54 21
55 20
56 1...

output:

4
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
8
0
0
0
0
16
0
0
4096
0
0
0
0
4096
0
0
0
0
2
0
0
0
0
4
0
0
0
0
32
64
0
0
0
512
64
4
4096
0
2
0
0
131072
0
0
0
0
0
0
0
0
2
0
0
0
2
0
4096
2
0
0
0
0
0
512
2
8
0
0
4096
64
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
512
0
0
36
0
0
0
0
0
0
0
64
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0...

result:

wrong answer 1467th numbers differ - expected: '4294967298', found: '512'

Subtask #8:

score: 0
Skipped

Dependency #1:

0%