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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#182897#5375. SearchLynkcat10 368ms50364kbC++203.3kb2023-09-18 18:39:432023-09-18 18:39:43

Judging History

你现在查看的是最新测评结果

  • [2023-09-18 18:39:43]
  • 评测
  • 测评结果:10
  • 用时:368ms
  • 内存:50364kb
  • [2023-09-18 18:39:43]
  • 提交

answer

#include <bits/stdc++.h>
#include "search.h"
#define poly vector<int>
#define IOS ios::sync_with_stdio(false)
#define ll long long
#define mp make_pair
#define mt make_tuple
#define pa pair < int,int >
#define fi first
#define se second
#define inf 1e18
#define mod 998244353
#define sz(x) ((int)((x).size()))
// #define int ll

using namespace std;

namespace query 
{
    const int N=2005;
    int n;
    int bnd[N],pos[N];
    mt19937_64 rnd(time(0));
    void geta(int k,int x,int y,int rb)
    {
        if (!x) return;
        int l=pos[k]+1,r=min(rb,bnd[k]);
        while (l<=r)
        {
            int mid=l+(r-l)/2;
            if (ask1(mid,k,x,y)=="<")
            {
                pos[k]=mid;
                l=mid+1;
            } else r=mid-1;
        }
    }
    void getr(int k)
    {
        int l=pos[k]+1,r=bnd[k];
        while (l<=r)
        {
            int mid=l+(r-l)/2;
            if (ask2(mid,k)=="<")
            {
                pos[k]=mid;
                l=mid+1;
            } else r=mid-1;
        }
    }
    void upd(int k,int x,int y)
    {
        int l=max(1,pos[k]+1),r=bnd[k];
        while (l<=r)
        {
            int mid=l+(r-l)/2;
            if (ask1(mid,k,x,y)=="<")
            {
                l=mid+1;
            } else
            {
                bnd[k]=mid-1;
                r=mid-1;
            }
        }
    }
    void solve(poly g)
    {
        if (g.empty()) return;
        int md=0;
        // for (int i=0;i<g.size();i++)
        // {
        //     int u=g[i];
        //     if (i==md) continue;
        //     if (ask1(pos[u]+1,u,pos[g[md]]+1,g[md])=="<") md=i;
        // }
        md=rnd()%g.size();
        // if (g.size()>100) md=g.size()-rnd()%50-1;
        // md=0;
        int mid=g[md];
        // cout<<mid<<" "<<pos[mid]+1<<" "<<bnd[mid]<<endl;
        // for (auto u:g) cout<<u<<",";
        // cout<<endl;
        getr(mid);
        // cout<<mid<<" "<<pos[mid]<<endl;
        int lst=n;
        for (auto u:g)
            if (u!=mid)
            {
                geta(u,pos[mid],mid,lst);
                lst=pos[u];
            }
            // for (auto u:g) cout<<u<<":"<<pos[u]<<endl;
            // cout<<"_--------------"<<endl;
        int cx=pos[mid],cy=mid;
        cx++;
        poly lf;
        for (auto u:g)
            if (u!=mid)
            {
                if (pos[u]==n) continue;
                if (cx>n||ask1(cx,cy,pos[u]+1,u)==">") 
                {
                    if (pos[u]+1>bnd[u]) 
                    {
                        cx=pos[u]+1,cy=u;
                    }
                }
            }
        for (auto u:g)
            if (u!=mid)
            {
                if (pos[u]==n) continue;
                if (cx>n||ask1(cx,cy,pos[u]+1,u)==">") 
                {
                    if (cx<=n) upd(u,cx,cy);
                    if (pos[u]+1>bnd[u]) continue;
                    lf.push_back(u);
                }
            }
        solve(lf);
    }

    int main(int nn) 
    {
        n=nn;
        poly g;
        for (int i=1;i<=n;i++)
            g.push_back(i),bnd[i]=n;
        solve(g);
        int ans=0;
        for (int i=1;i<=n;i++) ans+=pos[i];
        return ans;
    }
}

詳細信息

Subtask #1:

score: 10
Accepted

Test #1:

score: 10
Accepted
time: 0ms
memory: 3884kb

input:

6 3
384 45
837639677

output:

1 51 9

result:

points 1.0 correct, ask1 called 51 time(s), ask2 called 9 time(s)

Test #2:

score: 10
Accepted
time: 1ms
memory: 4168kb

input:

8 59
512 45
439876779

output:

1 52 9

result:

points 1.0 correct, ask1 called 52 time(s), ask2 called 9 time(s)

Test #3:

score: 10
Accepted
time: 0ms
memory: 4140kb

input:

9 27
576 45
777817090

output:

1 57 7

result:

points 1.0 correct, ask1 called 57 time(s), ask2 called 7 time(s)

Test #4:

score: 10
Accepted
time: 0ms
memory: 3908kb

input:

7 14
448 45
42081112

output:

1 52 11

result:

points 1.0 correct, ask1 called 52 time(s), ask2 called 11 time(s)

Test #5:

score: 10
Accepted
time: 1ms
memory: 4140kb

input:

6 14
384 45
380054191

output:

1 44 9

result:

points 1.0 correct, ask1 called 44 time(s), ask2 called 9 time(s)

Test #6:

score: 10
Accepted
time: 0ms
memory: 3976kb

input:

9 13
576 45
718060038

output:

1 40 9

result:

points 1.0 correct, ask1 called 40 time(s), ask2 called 9 time(s)

Test #7:

score: 10
Accepted
time: 0ms
memory: 4120kb

input:

9 16
576 45
1056065885

output:

1 61 9

result:

points 1.0 correct, ask1 called 61 time(s), ask2 called 9 time(s)

Test #8:

score: 10
Accepted
time: 0ms
memory: 4164kb

input:

7 41
448 45
320297139

output:

1 53 11

result:

points 1.0 correct, ask1 called 53 time(s), ask2 called 11 time(s)

Test #9:

score: 10
Accepted
time: 0ms
memory: 3880kb

input:

7 33
448 45
658302986

output:

1 52 9

result:

points 1.0 correct, ask1 called 52 time(s), ask2 called 9 time(s)

Test #10:

score: 10
Accepted
time: 1ms
memory: 6200kb

input:

7 30
448 45
996276065

output:

1 49 7

result:

points 1.0 correct, ask1 called 49 time(s), ask2 called 7 time(s)

Test #11:

score: 10
Accepted
time: 0ms
memory: 3980kb

input:

7 37
448 45
598480398

output:

1 18 3

result:

points 1.0 correct, ask1 called 18 time(s), ask2 called 3 time(s)

Test #12:

score: 10
Accepted
time: 0ms
memory: 3892kb

input:

10 27
640 45
936486245

output:

1 43 6

result:

points 1.0 correct, ask1 called 43 time(s), ask2 called 6 time(s)

Test #13:

score: 10
Accepted
time: 0ms
memory: 3920kb

input:

8 22
512 45
200750268

output:

1 34 6

result:

points 1.0 correct, ask1 called 34 time(s), ask2 called 6 time(s)

Test #14:

score: 10
Accepted
time: 0ms
memory: 3924kb

input:

10 41
640 45
538723346

output:

1 55 8

result:

points 1.0 correct, ask1 called 55 time(s), ask2 called 8 time(s)

Test #15:

score: 10
Accepted
time: 0ms
memory: 3836kb

input:

6 35
384 45
876729193

output:

1 43 7

result:

points 1.0 correct, ask1 called 43 time(s), ask2 called 7 time(s)

Test #16:

score: 10
Accepted
time: 0ms
memory: 3976kb

input:

10 98
640 45
140960448

output:

1 76 14

result:

points 1.0 correct, ask1 called 76 time(s), ask2 called 14 time(s)

Test #17:

score: 10
Accepted
time: 0ms
memory: 3852kb

input:

8 36
512 45
478966295

output:

1 40 6

result:

points 1.0 correct, ask1 called 40 time(s), ask2 called 6 time(s)

Test #18:

score: 10
Accepted
time: 0ms
memory: 3832kb

input:

8 9
512 45
81170628

output:

1 63 8

result:

points 1.0 correct, ask1 called 63 time(s), ask2 called 8 time(s)

Test #19:

score: 10
Accepted
time: 1ms
memory: 5988kb

input:

6 20
384 45
419176475

output:

1 41 7

result:

points 1.0 correct, ask1 called 41 time(s), ask2 called 7 time(s)

Test #20:

score: 10
Accepted
time: 0ms
memory: 3904kb

input:

6 23
384 45
757149553

output:

1 53 6

result:

points 1.0 correct, ask1 called 53 time(s), ask2 called 6 time(s)

Subtask #2:

score: 0
Wrong Answer

Test #21:

score: 0
Wrong Answer
time: 368ms
memory: 50364kb

input:

1998 997469
511488 45
691176210

output:

1 38754 71

result:

points 0.0 correct, ask1 called 38754 time(s), ask2 called 71 time(s)