#include<bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
#define REP(i,j,k) for(int i=j;i<k;++i)
#define pb push_back
#define f first
#define s second
#define endl '\n'
#define IOS cin.tie(0),cout.tie(0),ios_base::sync_with_stdio(false)
struct nd{
int l,d,r,u;
};
const int maxn=2e5+9;
int n,p;
nd a[maxn];
pii res[5];
bitset<maxn>vis;
mt19937 rd(time(0));
nd merge(nd x,nd y){
return nd{max(x.l,y.l),max(x.d,y.d),min(x.r,y.r),min(x.u,y.u)};
}
main(){
IOS;
cin>>n>>p;
REP(i,0,n)cin>>a[i].l>>a[i].d>>a[i].r>>a[i].u;
while(1){
shuffle(a,a+n,rd);
vis.reset();
int c=0;
REP(k,0,p){
nd un=nd{1,1,1e9,1e9};
REP(i,0,n){
if(vis[i])continue;
nd tt=merge(un,a[i]);
if(tt.d<=tt.u&&tt.l<=tt.r){
++c;
vis[i]=1;
un=tt;
}
}
res[k]={un.l,un.d};
}
if(c==n){
REP(i,0,p)cout<<res[i].f<<" "<<res[i].s<<endl;
return 0;
}
}
}
Compilation message
hamburg.cpp:26:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
26 | main(){
| ^
hamburg.cpp: In function 'int main()':
hamburg.cpp:35:24: error: narrowing conversion of '1.0e+9' from 'double' to 'int' [-Wnarrowing]
35 | nd un=nd{1,1,1e9,1e9};
| ^
hamburg.cpp:35:24: error: narrowing conversion of '1.0e+9' from 'double' to 'int' [-Wnarrowing]
