oj.uz

Submission #921634

# Submission time Handle Problem Language Result Execution time Memory
921634 2024-02-04T08:35:23 Z 1075508020060209tc Meetings (JOI19_meetings) C++14
29 / 100
 1581 ms 17060 KB 
#pragma GCC optimize("O3")
#include "meetings.h"
#include<bits/stdc++.h>
using namespace std;
//#define int long long
#define X first
#define Y second
#define SZ(x) (int)(x).size()

unsigned seed=12345;
long long rnd(){
seed=seed^(seed<<7);
seed=seed^(seed>>4);
seed=seed^(seed>>3);
return seed;
}


map<vector<int>,int>mp;
int n;
int query(int a,int b,int c){
vector<int>vc={a,b,c};
sort(vc.begin(),vc.end());
if(vc[0]==vc[1]){return vc[0];}
if(vc[1]==vc[2]){return vc[2];}

if(mp[vc]){return mp[vc];}
mp[vc]=Query(vc[0]-1,vc[1]-1,vc[2]-1)+1;
return mp[vc];
}
set<pair<int,int>>ans;

int finmid(vector<int>&vc){
int a=rnd()%vc.size();
int b=rnd()%vc.size();
if(b==a){b++;b%=vc.size();}
int c=rnd()%vc.size();
if(c==a){
    c++;c%=vc.size();
}
if(c==b){
    c++;c%=vc.size();
}
return query(vc[0],vc[1],vc[2]);
}

void slv(vector<int>vc){
if(vc.size()==1){return;}
if(vc.size()==2){
    ans.insert({min(vc[0],vc[1]),max(vc[0],vc[1])});
    return;
}
random_shuffle(vc.begin(),vc.end());
vector<int>vcb;vector<int>vca;
int md=vc[0];
int w=vc[1];
//md=query(vc[0],vc[1],vc[2]);
/*
for(int i=0;i<vc.size();i++){
    if(vc[i]==md){
        swap(vc[i],vc[0]);
    }
}
*/
set<int>st;
st.insert(w);
for(int i=2;i<vc.size();i++){
    int v=vc[i];
    if(v==w){
        st.insert(v);
        continue;
    }
    int vv=query(md,w,v);
    if(vv==md){continue;}
    st.insert(vc[i]);
    w=vv;
}
for(int i=0;i<vc.size();i++){
    if(st.find(vc[i])!=st.end()){
        vca.push_back(vc[i]);
    }else{
        vcb.push_back(vc[i]);
    }
}
ans.insert({min(md,w),max(md,w)});
slv(vca);
slv(vcb);
}


void Solve(int N){
n=N;
vector<int>vc;
for(int i=1;i<=n;i++){
    vc.push_back(i);
}
slv(vc);
for(auto it=ans.begin();it!=ans.end();it++){
    Bridge((*it).first-1, (*it).second-1);
}
}

Compilation message

meetings.cpp: In function 'void slv(std::vector<int>)':
meetings.cpp:67:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 | for(int i=2;i<vc.size();i++){
      |             ~^~~~~~~~~~
meetings.cpp:78:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 | for(int i=0;i<vc.size();i++){
      |             ~^~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 1 ms 600 KB Output is correct
21 Correct 1 ms 600 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 1 ms 600 KB Output is correct
21 Correct 1 ms 600 KB Output is correct
22 Correct 1 ms 600 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 36 ms 2640 KB Output is correct
28 Correct 38 ms 1936 KB Output is correct
29 Correct 34 ms 2128 KB Output is correct
30 Correct 19 ms 1628 KB Output is correct
31 Correct 32 ms 2384 KB Output is correct
32 Correct 62 ms 3924 KB Output is correct
33 Correct 43 ms 3320 KB Output is correct
34 Correct 50 ms 3920 KB Output is correct
35 Correct 62 ms 4432 KB Output is correct
36 Correct 14 ms 1112 KB Output is correct
37 Correct 8 ms 600 KB Output is correct
38 Correct 8 ms 600 KB Output is correct
39 Correct 8 ms 856 KB Output is correct

Subtask #4
0 / 71.0

# Verdict Execution time Memory Grader output
1 Incorrect 1581 ms 17060 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -