| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1295002 | Tymond | Izvanzemaljci (COI21_izvanzemaljci) | C++20 | 0 ms | 0 KiB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define fi first
#define se second
#define vi vector<int>
#define vll vector<long long>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::high_resolution_clock::now().time_since_epoch().count());
inline int rand(int l,int r){return uniform_int_distribution<int>(l, r)(rng);}
inline ll rand(ll l,ll r){return uniform_int_distribution<ll>(l, r)(rng64);}
#ifdef DEBUG
auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";}
auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";}
#define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X)
#else
#define debug(...){}
#endif
struct custom_hash {
static uint64_t splitmix64(uint64_t x) {
x += 0x9e3779b97f4a7c15;
x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
return x ^ (x >> 31);
}
size_t operator()(uint64_t x) const {
static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
return splitmix64(x + FIXED_RANDOM);
}
};
struct pair_hash{
size_t operator()(const pair<int,int>&x)const{
return hash<long long>()(((long long)x.first)^(((long long)x.second)<<32));
}
};
const int INF = 2e9 + 7;
bool comp(pii& x, pii& y){
if(x.se != y.se){
return x.se < y.se;
}
return x.fi < y.fi;
}
vector<pair<pii, int>> solve(vector<pii> a, int n, int k){
if(k == 1){
int mxX = -INF;
int mxY = -INF;
int mnX = INF;
int mnY = INF;
for(auto ele : a){
mxX = max(mxX, ele.fi);
mnX = min(mnX, ele.fi);
mxY = max(mxY, ele.se);
mnY = min(mnY, ele.se);
}
vector<pair<pii, int>> ret = {mp(mp(mnX, mnY), max(1, max(mxX - mnX, mxY - mnY)))};
return ret;
}
sort(all(a), comp);
if(k == 2){
vector<pii> sufX(n + 1, mp(-INF, INF));
vector<pii> sufY(n + 1, mp(-INF, INF));
for(int i = n - 1; i >= 0; i--){
sufX[i].fi = max(sufX[i + 1].fi, a[i].fi);
sufX[i].se = min(sufX[i + 1].se, a[i].fi);
sufY[i].fi = max(sufY[i + 1].fi, a[i].se);
sufY[i].se = min(sufY[i + 1].se, a[i].se);
}
int mxX = -INF;
int mxY = -INF;
int mnX = INF;
int mnY = INF;
int best = INF;
vector<pair<pii, int>> ret = {mp(mp(INF, INF), INF), mp(mp(INF, INF), INF)};
for(int i = 0; i < n - 1; i++){
mxX = max(mxX, a[i].fi);
mnX = min(mnX, a[i].fi);
mxY = max(mxY, a[i].se);
mnY = min(mnY, a[i].se);
if(sufY[i + 1].se == mxY){
continue;
}
int nbest = max({1, sufX[i + 1].fi - sufX[i + 1].se, sufY[i + 1].fi - sufY[i + 1].se, mxX - mnX, mxY - mnY});
if(nbest < best){
best = nbest;
ret = {mp(sufX[i + 1].se, sufY[i + 1].se), max({1, sufX[i + 1].fi - sufX[i + 1].se, sufY[i + 1].fi - sufY[i + 1].se})};
pii upper = mp(mxX, mxY);
upper.fi -= max({1, mxX - mnX, mxY - mny});
upper.se -= max({1, mxX - mnX, mxY - mny});
ret.pb(mp(upper, max({1, mxX - mnX, mxY - mny})));
}
}
return ret;
}
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
int n, k;
cin >> n >> k;
vector<pii> a(n);
for(int i = 0; i < n; i++){
cin >> a[i].fi >> a[i].se;
}
vector<pair<pii, int>> res;
int best = INF;
for(int i = 0; i < 2; i++){
for(int j = 0; j < 2; j++){
vector<pair<pii, int>> curr = solve(a, n, k);
int nbest = INF;
for(auto ele : curr){
nbest = min(nbest, ele.se);
}
if(nbest < best){
res = curr;
best = nbest;
if(j){
for(auto& ele : curr){
ele.fi.se = -ele.fi.se;
}
}
if(i){
for(auto& ele : curr){
swap(ele.fi.fi, ele.fi.se);
}
}
}
for(int j2 = 0; j2 < n; j2++){
a[j2].se = -a[j2].se;
}
}
for(int j = 0; j < n; j++){
swap(a[j].fi, a[j].se);
}
}
for(auto ele : res){
cout << ele.fi.fi << ' ' << ele.fi.se << ' ' << ele.se << '\n';
}
return 0;
}