//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int dx[4]={0,0,1,-1};
int dy[4]={1,-1,0,0};
void setIO(string s) {
freopen((s + ".in").c_str(), "r", stdin);
freopen((s + ".out").c_str(), "w", stdout);
}
const int inf=1e9+5;
const int mxn=2e5+5;
vector<int> adj[mxn];
int x1[mxn];
int x2[mxn];
int Y1[mxn];
int Y2[mxn];
bool visited[mxn];
int depth[mxn];
int c[mxn];
bool up[mxn];
void dfs(int v,int p=-1){
if(p!=-1) depth[v]=depth[p]+1;
visited[v]=true;
for(auto u:adj[v]){
if(visited[u]){
if(u!=p and depth[u]<depth[v]){
if(up[u]){
}
up[v]=true;
}
continue;
}
c[u]=c[v]^1;
dfs(u,v);
}
}
bool cross(int a,int b){
bool ok=true;
if(x1[a]>x1[b]) swap(a,b);
ok&=(x2[a]>=x1[b]);
if(Y1[a]>Y1[b]) swap(a,b);
ok&=(Y2[a]>=Y1[b]);
return ok;
}
pair<int,int> cal(vector<int> vec){
if(vec.empty()){
return {0,0};
}
int mnx=inf;
int mny=inf;
for(auto v:vec){
mnx=min(mnx,x2[v]);
mny=min(mny,Y2[v]);
}
return {mnx,mny};
}
int main() {_
int n,k;
cin>>n>>k;
int mnx=inf;
int mny=inf;
for(int i=0;i<n;i++){
cin>>x1[i]>>Y1[i]>>x2[i]>>Y2[i];
}
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
if(i==j) continue;
if(!cross(i,j)) adj[i].push_back(j);
}
}
for(int i=0;i<n;i++){
vector<bool> use(3);
for(auto v:adj[i]){
if(v>i) continue;
use[c[v]]=true;
}
c[i]=-1;
for(int j=0;j<3;j++){
if(!use[j]){
c[i]=j;
break;
}
}
assert(c[i]!=-1);
}
//return 0;
vector<int> a,b,C;
for(int i=0;i<n;i++){
if(c[i]==0) a.push_back(i);
else if(c[i]==1) b.push_back(i);
else C.push_back(i);
}
pair<int,int> res=cal(a);
cout<<res.f<<' '<<res.s<<'\n';
pair<int,int> res2=cal(b);
cout<<res2.f<<' '<<res2.s<<'\n';
pair<int,int> res3=cal(C);
cout<<res3.f<<' '<<res3.s<<'\n';
return 0;
}
//maybe its multiset not set
//yeeorz
//laborz
Compilation message
hamburg.cpp: In function 'int main()':
hamburg.cpp:74:9: warning: unused variable 'mnx' [-Wunused-variable]
74 | int mnx=inf;
| ^~~
hamburg.cpp:75:9: warning: unused variable 'mny' [-Wunused-variable]
75 | int mny=inf;
| ^~~
hamburg.cpp: In function 'void setIO(std::string)':
hamburg.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
15 | freopen((s + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hamburg.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
16 | freopen((s + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
30 ms |
10076 KB |
Extra information in the output file |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
32 ms |
10332 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
55 ms |
27732 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
49 ms |
24144 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
30 ms |
10076 KB |
Extra information in the output file |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
32 ms |
10332 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
55 ms |
27732 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
49 ms |
24144 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
