oj.uz

Submission #935512

# Submission time Handle Problem Language Result Execution time Memory
935512 2024-02-29T08:28:38 Z 1075508020060209tc Chameleon's Love (JOI20_chameleon) C++14
100 / 100
 33 ms 648 KB 
#include "chameleon.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;
int n;
vector<int>e[2010];

int slv(int a,vector<int>vc){
if(Query({a,vc[0],vc[1]})==1){
    return vc[2];
}
if(Query({a,vc[0],vc[2]})==1){
    return vc[1];
}
return vc[0];
}

void fsolve(){
vector<int>lvlv(n*2+10,0);
vector<int>ans(n*2+10,0);
vector<int>love(n*2+10,0);

for(int i=1;i<=n*2;i++){
    if(e[i].size()==1){
        ans[i]=e[i][0];
        lvlv[i]=1;
    }
}
for(int i=1;i<=n*2;i++){
    if(e[i].size()==3){
        love[i]=slv(i,e[i]);
    }
}
for(int i=1;i<=n*2;i++){
    if(e[i].size()==1){continue;}
    if(e[i].size()==3){
    if(e[i][0]!=love[i]&&(love[e[i][0]]!=i||lvlv[e[i][0]])){ans[i]=e[i][0];}
    if(e[i][1]!=love[i]&&(love[e[i][1]]!=i||lvlv[e[i][1]])){ans[i]=e[i][1];}
    if(e[i][2]!=love[i]&&(love[e[i][2]]!=i||lvlv[e[i][2]])){ans[i]=e[i][2];}
    }
}
for(int i=1;i<=n*2;i++){
    if(ans[i]){
        ans[ans[i]]=i;
    }
}

for(int i=1;i<=n*2;i++){
    if(ans[i]<i&&ans[i]){
        Answer(i,ans[i]);
    }
}
}

int ask(int l,int r,vector<int>&ar,int v){
if(r>=ar.size()){return 1;}
vector<int>vc;
for(int i=l;i<=r;i++){
    vc.push_back(ar[i]);
}
vc.push_back(v);
if(Query(vc)<vc.size()){return 1;}
return 0;
}

vector<int>adde(int nw,vector<int>ar){
vector<int>ret;
vector<int>vc=ar;
vc.push_back(nw);
if(Query(vc)==vc.size()){return ret;}
int l;int r;
l=0;r=ar.size();
int lc=0;
for(int tc=0;tc<=2;tc++){
r=ar.size();
while(l<r){
    int mi=l+(r-l)/2;
    if(ask(lc,mi,ar,nw)){
        r=mi;
    }else{
        l=mi+1;
    }
}
if(l<ar.size()){
    ret.push_back(ar[l]);
}
l+=1;
lc=l;
}
return ret;
}


int uf[2010];
int uv[2010];
int usz[2010];
int fin(int x){
if(uf[x]==x){return x;}
return fin(uf[x]);
}
int finv(int x){
if(uf[x]==x){return 0;}
return (finv(uf[x])+uv[x])%2;
}
void mrg(int a,int b){
int pa=fin(a);int pb=fin(b);
int va=finv(a);int vb=finv(b);
if(pa==pb){return;}
if(usz[pa]<usz[pb]){
    swap(pa,pb);
    swap(va,vb);
}
uf[pb]=pa;
usz[pa]+=usz[pb];
uv[pb]=(1^va^vb);
}

int vis[2010];
void Solve(int N){
n=N;
vector<int>duili;
duili.push_back(1);
vis[1]=1;
for(int i=2;i<=n+n;i++){
    vector<int>vc=duili;
    vc.push_back(i);
    if(Query(vc)==vc.size()){
        duili.push_back(i);
        vis[i]=1;
    }
}

for(int i=1;i<=n+n;i++){
    uf[i]=i;
    usz[i]=1;
    uv[i]=0;
}

for(int i=1;i<=n+n;i++){
    if(vis[i]){continue;}
    vector<int>vcl;vector<int>vcr;
    for(int j=1;j<=n+n;j++){
        if(vis[j]==0){continue;}
        if(finv(j)==0){
            vcl.push_back(j);
        }else{
            vcr.push_back(j);
        }
    }
    vector<int>tvc=adde(i,vcl);
    vector<int>tvc2=adde(i,vcr);
    for(int v:tvc){
        mrg(i,v);
        e[i].push_back(v);
        e[v].push_back(i);
    }
    for(int v:tvc2){
        mrg(i,v);
        e[i].push_back(v);
        e[v].push_back(i);
    }
    vis[i]=1;
}


fsolve();
}
/*
4
1 0 1 0 0 1 1 0
4 4 1 2 1 2 3 3
4 3 8 7 6 5 2 1


*/

Compilation message

chameleon.cpp: In function 'int ask(int, int, std::vector<int>&, int)':
chameleon.cpp:56:5: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 | if(r>=ar.size()){return 1;}
      |    ~^~~~~~~~~~~
chameleon.cpp:62:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 | if(Query(vc)<vc.size()){return 1;}
      |    ~~~~~~~~~^~~~~~~~~~
chameleon.cpp: In function 'std::vector<int> adde(int, std::vector<int>)':
chameleon.cpp:70:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 | if(Query(vc)==vc.size()){return ret;}
      |    ~~~~~~~~~^~~~~~~~~~~
chameleon.cpp:84:5: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 | if(l<ar.size()){
      |    ~^~~~~~~~~~
chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:127:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  127 |     if(Query(vc)==vc.size()){
      |        ~~~~~~~~~^~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 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 26 ms 600 KB Output is correct
4 Correct 28 ms 644 KB Output is correct
5 Correct 26 ms 600 KB Output is correct
6 Correct 27 ms 596 KB Output is correct
7 Correct 26 ms 600 KB Output is correct
8 Correct 27 ms 580 KB Output is correct
9 Correct 28 ms 600 KB Output is correct

Subtask #2
20.0 / 20.0

# 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 352 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 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 0 ms 344 KB Output is correct

Subtask #3
20.0 / 20.0

# 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 352 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 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 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 392 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

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 32 ms 600 KB Output is correct
4 Correct 32 ms 600 KB Output is correct
5 Correct 32 ms 640 KB Output is correct
6 Correct 31 ms 636 KB Output is correct
7 Correct 31 ms 600 KB Output is correct
8 Correct 31 ms 600 KB Output is correct
9 Correct 31 ms 648 KB Output is correct

Subtask #5
36.0 / 36.0

# 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 26 ms 600 KB Output is correct
4 Correct 28 ms 644 KB Output is correct
5 Correct 26 ms 600 KB Output is correct
6 Correct 27 ms 596 KB Output is correct
7 Correct 26 ms 600 KB Output is correct
8 Correct 27 ms 580 KB Output is correct
9 Correct 28 ms 600 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 352 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 392 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 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 32 ms 600 KB Output is correct
31 Correct 32 ms 600 KB Output is correct
32 Correct 32 ms 640 KB Output is correct
33 Correct 31 ms 636 KB Output is correct
34 Correct 31 ms 600 KB Output is correct
35 Correct 31 ms 600 KB Output is correct
36 Correct 31 ms 648 KB Output is correct
37 Correct 32 ms 600 KB Output is correct
38 Correct 26 ms 600 KB Output is correct
39 Correct 33 ms 600 KB Output is correct
40 Correct 33 ms 600 KB Output is correct
41 Correct 33 ms 608 KB Output is correct
42 Correct 29 ms 640 KB Output is correct
43 Correct 31 ms 600 KB Output is correct
44 Correct 33 ms 628 KB Output is correct
45 Correct 33 ms 600 KB Output is correct