| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 864429 |
2023-10-22T20:31:07 Z |
Ahmed57 |
ICC (CEOI16_icc) |
C++17 |
|
0 ms |
0 KB |
#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#include "icc.h"
int p[100001];
vector<int> v[100001];
int find(int x){
if(x==p[x])return x;
return p[x] = find(p[x]);
}
void merge(int a,int b){
a = find(a) , b = find(b);
if(a==b)return ;
if(v[a].size()<v[b].size())swap(a,b);
p[b] = a;
while(v[b].size()){
v[a].push_back(v[b].back());v[b].pop_back();
}
}
int quer(int a,int b,vector<int>A , vector<int> B){
int AA[a];
for(int i = 0;i<A.size();i++)AA[i] = A[i];
int BB[b];
for(int i = 0;i<B.size();i++)BB[i] = B[i];
return query(a,b,AA,BB);
}
mt19937 rng;
void run(int n){
rng.seed(72);
for(int i = 1;i<=n;i++){
p[i] = i;
v[i].push_back(i);
}
for(int it = 0;it<n-1;it++){
vector<int> a , b;
for(int xd = 0;;xd++){
ordered_set lol;
vector<int> fi , se;
for(int i = 1;i<=n;i++){
if(i==find(i))lol.insert(i);
}
for(int i = 0;i<(n-it)/2;i++){
int x = rng()%lol.size();
auto it = lol.find_by_order(x);
for(auto a3:v[(*it)])fi.push_back(a3);
lol.erase(it);
}
for(auto i:lol){
for(auto a3:v[i])se.push_back(a3);
}
if(quer(fi.size(),se.size(),fi,se)){
a = fi , b = se;
break;
}
}
while(a.size()>1||b.size()>1){
vector<int> tys = {1,2,3,4};
shuffle(tys.begin(),tys.end(),rng);
for(int LOL = 0;LOL<tys.size();LOL++){
if(tys[LOL]==1){//first half with first half
vector<int> A,B;
for(int i = 0;i<max(int(a.size()/2),1);i++){
A.push_back(a[i]);
}for(int i = 0;i<max(int(b.size()/2),1);i++){
B.push_back(b[i]);
}
if(LOl==3||quer(A.size(),B.size(),A,B)){
a = A, b = B;
break;
}
}
if(tys[LOL]==2){//second half with first half
vector<int> A,B;
for(int i = a.size()/2;i<a.size();i++){
A.push_back(a[i]);
}for(int i = 0;i<max(int(b.size()/2),1);i++){
B.push_back(b[i]);
}
if(LOL==3||quer(A.size(),B.size(),A,B)){
a = A, b = B;
break;
}
}
if(tys[LOL]==3){//first half with second half
vector<int> A,B;
for(int i = 0;i<max(int(a.size()/2),1);i++){
A.push_back(a[i]);
}for(int i = b.size()/2;i<b.size();i++){
B.push_back(b[i]);
}
if(LOL==3||quer(A.size(),B.size(),A,B)){
a = A, b = B;
break;
}
}
if(tys[LOL]==4){//second half with second half
vector<int> A,B;
for(int i = a.size()/2;i<a.size();i++){
A.push_back(a[i]);
}for(int i = b.size()/2;i<b.size();i++){
B.push_back(b[i]);
}
if(LOL==3||quer(A.size(),B.size(),A,B)){
a = A, b = B;
break;
}
}
}
}
setRoad(a[0],b[0]);
merge(a[0],b[0]);
}
}
/*int main(){
}*/
Compilation message
icc.cpp: In function 'int quer(int, int, std::vector<int>, std::vector<int>)':
icc.cpp:27:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
27 | for(int i = 0;i<A.size();i++)AA[i] = A[i];
| ~^~~~~~~~~
icc.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
29 | for(int i = 0;i<B.size();i++)BB[i] = B[i];
| ~^~~~~~~~~
icc.cpp: In function 'void run(int)':
icc.cpp:64:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
64 | for(int LOL = 0;LOL<tys.size();LOL++){
| ~~~^~~~~~~~~~~
icc.cpp:72:20: error: 'LOl' was not declared in this scope; did you mean 'LOL'?
72 | if(LOl==3||quer(A.size(),B.size(),A,B)){
| ^~~
| LOL
icc.cpp:79:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
79 | for(int i = a.size()/2;i<a.size();i++){
| ~^~~~~~~~~
icc.cpp:93:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
93 | }for(int i = b.size()/2;i<b.size();i++){
| ~^~~~~~~~~
icc.cpp:103:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
103 | for(int i = a.size()/2;i<a.size();i++){
| ~^~~~~~~~~
icc.cpp:105:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
105 | }for(int i = b.size()/2;i<b.size();i++){
| ~^~~~~~~~~
