Submission #744351

#TimeUsernameProblemLanguageResultExecution timeMemory
744351jamielimIzvanzemaljci (COI21_izvanzemaljci)C++14
26 / 100
48 ms6344 KiB
#include <bits/stdc++.h> using namespace std; #define fi first #define se second #define mp make_pair #define pb emplace_back #define ALL(x) x.begin(),x.end() #define SZ(x) (int)x.size() typedef long long ll; typedef pair<int,int> ii; typedef pair<ii,ii> i4; typedef vector<int> vi; const int MOD=1000000007; const int INF=1012345678; const ll LLINF=1012345678012345678LL; const double PI=3.1415926536; const double EPS=1e-14; int n,k; vector<ii> all; int premin[100005]; int premax[100005]; int sufmin[100005]; int sufmax[100005]; vector<ii> one_input; inline vector<ll> find_one_square(){ if(SZ(one_input)==0)return {0,0,1}; ll minx=LLINF,maxx=-LLINF,miny=LLINF,maxy=-LLINF; for(ii i:one_input){ minx=min(minx,(ll)i.fi); maxx=max(maxx,(ll)i.fi); miny=min(miny,(ll)i.se); maxy=max(maxy,(ll)i.se); } ll l=max(1LL,max(maxx-minx,maxy-miny)); return {minx,miny,l}; } vector<ll> an[2]; vector<ii> two_input; inline vector<vector<ll> > find_two_squares(){ one_input=two_input; an[0]=find_one_square(); an[1]={2012345678,2012345678,1}; ll le=an[0][2]; sort(ALL(two_input)); for(int i=0;i<n;i++){ if(i==0){ premin[i]=two_input[i].se; premax[i]=two_input[i].se; }else{ premin[i]=min(premin[i-1],two_input[i].se); premax[i]=max(premax[i-1],two_input[i].se); } } for(int i=n-1;i>=0;i--){ if(i==n-1){ sufmin[i]=two_input[i].se; sufmax[i]=two_input[i].se; }else{ sufmin[i]=min(sufmin[i+1],two_input[i].se); sufmax[i]=max(sufmax[i+1],two_input[i].se); } } for(int i=0;i<n-1;i++){ ll hor=max(max(two_input[i].fi-two_input[0].fi,two_input[n-1].fi-two_input[i+1].fi),1); ll ver=max(max(premax[i]-premin[i],sufmax[i+1]-sufmin[i+1]),1); ll l=max(hor,ver); if(l<le){ le=l; an[0]={two_input[i].fi-l,premax[i]-l,l}; an[1]={two_input[i+1].fi,sufmin[i+1],l}; } } for(int i=0;i<n;i++)swap(two_input[i].fi,two_input[i].se); sort(ALL(two_input)); for(int i=0;i<n;i++){ if(i==0){ premin[i]=two_input[i].se; premax[i]=two_input[i].se; }else{ premin[i]=min(premin[i-1],two_input[i].se); premax[i]=max(premax[i-1],two_input[i].se); } } for(int i=n-1;i>=0;i--){ if(i==n-1){ sufmin[i]=two_input[i].se; sufmax[i]=two_input[i].se; }else{ sufmin[i]=min(sufmin[i+1],two_input[i].se); sufmax[i]=max(sufmax[i+1],two_input[i].se); } } for(int i=0;i<n-1;i++){ ll hor=max(max(two_input[i].fi-two_input[0].fi,two_input[n-1].fi-two_input[i+1].fi),1); ll ver=max(max(premax[i]-premin[i],sufmax[i+1]-sufmin[i+1]),1); ll l=max(hor,ver); if(l<le){ le=l; an[0]={premax[i]-l,two_input[i].fi-l,l}; an[1]={sufmin[i+1],two_input[i+1].fi,l}; } } for(int i=0;i<n;i++)swap(two_input[i].fi,two_input[i].se); return {an[0],an[1]}; } bool disjoint(vector<int> v1,vector<int> v2){ return (v1[0]+v1[2]<v2[0])||(v2[0]+v2[2]<v1[0])||(v1[1]+v1[2]<v2[1])||(v2[1]+v2[2]<v1[1]); } int32_t main(){ scanf("%d%d",&n,&k); int x,y; for(int i=0;i<n;i++){ scanf("%d%d",&x,&y); all.pb(x,y); } if(k==1){ one_input=all; vector<ll> ans=find_one_square(); printf("%lld %lld %lld\n",ans[0],ans[1],ans[2]); }else if(k==2){ two_input=all; vector<vector<ll> > ans=find_two_squares(); for(int i=0;i<2;i++){for(int j=0;j<3;j++)printf("%lld ",ans[i][j]);printf("\n");} }else{ two_input=all; vector<vector<ll> > ans=find_two_squares(); vector<ll> tmp={2012345688,2012345688,1}; ans.pb(tmp); if(n<=2){ for(int i=0;i<3;i++){for(int j=0;j<3;j++)printf("%lld ",ans[i][j]);printf("\n");} return 0; } vector<vector<ll> > a; vector<ii> v; //printf("1\n"); sort(ALL(all)); vector<int> disc; for(int i=0;i<n;i++){ if(i==0)disc.pb(i); else if(all[i].fi>all[i-1].fi)disc.pb(i); } int pmin[n],pmax[n]; for(int i=0;i<n;i++){ if(i==0){pmin[i]=all[i].se;pmax[i]=all[i].se;} else{pmin[i]=min(pmin[i-1],all[i].se);pmax[i]=max(pmax[i-1],all[i].se);} } int l=1,r=SZ(disc)-1; while(l<r){ //printf("%d %d\n",l,r); int m=(l+r+1)/2; int idx=disc[m]; v.clear(); for(int i=idx;i<n;i++)v.pb(all[i]); two_input=v; a=find_two_squares(); int L=max(max(all[idx-1].fi-all[0].fi,pmax[idx-1]-pmin[idx-1]),1); if(L>max(a[0][2],a[1][2]))r=m-1; else l=m; } for(int m=l;m<=l+1;m++){ int idx=disc[m]; v.clear(); for(int i=idx;i<n;i++)v.pb(all[i]); two_input=v; a=find_two_squares(); ll L=max(max(all[idx-1].fi-all[0].fi,pmax[idx-1]-pmin[idx-1]),1); ll maxl=max(L,max(a[0][2],a[1][2])); if(maxl<max(max(ans[0][2],ans[1][2]),ans[2][2])){ ans[0]=a[0]; ans[1]=a[1]; ans[2]={all[idx-1].fi-L,pmin[idx-1],L}; } } //printf("2\n"); for(int i=0;i<n;i++)all[i].fi=-all[i].fi; sort(ALL(all)); disc.clear(); for(int i=0;i<n;i++){ if(i==0)disc.pb(i); else if(all[i].fi>all[i-1].fi)disc.pb(i); } for(int i=0;i<n;i++){ if(i==0){pmin[i]=all[i].se;pmax[i]=all[i].se;} else{pmin[i]=min(pmin[i-1],all[i].se);pmax[i]=max(pmax[i-1],all[i].se);} } l=1;r=SZ(disc)-1; while(l<r){ int m=(l+r+1)/2; int idx=disc[m]; v.clear(); for(int i=idx;i<n;i++)v.pb(-all[i].fi,all[i].se); two_input=v; a=find_two_squares(); int L=max(max(all[idx-1].fi-all[0].fi,pmax[idx-1]-pmin[idx-1]),1); if(L>max(a[0][2],a[1][2]))r=m-1; else l=m; } for(int m=l;m<=l+1;m++){ int idx=disc[m]; v.clear(); for(int i=idx;i<n;i++)v.pb(-all[i].fi,all[i].se); two_input=v; a=find_two_squares(); ll L=max(max(all[idx-1].fi-all[0].fi,pmax[idx-1]-pmin[idx-1]),1); ll maxl=max(L,max(a[0][2],a[1][2])); if(maxl<max(max(ans[0][2],ans[1][2]),ans[2][2])){ ans[0]=a[0]; ans[1]=a[1]; ans[2]={-all[idx-1].fi,pmin[idx-1],L}; } } //printf("3\n"); for(int i=0;i<n;i++){all[i].fi=-all[i].fi;swap(all[i].fi,all[i].se);} sort(ALL(all)); disc.clear(); for(int i=0;i<n;i++){ if(i==0)disc.pb(i); else if(all[i].fi>all[i-1].fi)disc.pb(i); } for(int i=0;i<n;i++){ if(i==0){pmin[i]=all[i].se;pmax[i]=all[i].se;} else{pmin[i]=min(pmin[i-1],all[i].se);pmax[i]=max(pmax[i-1],all[i].se);} } l=1,r=SZ(disc)-1; while(l<r){ int m=(l+r+1)/2; int idx=disc[m]; v.clear(); for(int i=idx;i<n;i++)v.pb(all[i].se,all[i].fi); two_input=v; a=find_two_squares(); int L=max(max(all[idx-1].fi-all[0].fi,pmax[idx-1]-pmin[idx-1]),1); if(L>max(a[0][2],a[1][2]))r=m-1; else l=m; } for(int m=l;m<=l+1;m++){ int idx=disc[m]; v.clear(); for(int i=idx;i<n;i++)v.pb(all[i].se,all[i].fi); two_input=v; a=find_two_squares(); ll L=max(max(all[idx-1].fi-all[0].fi,pmax[idx-1]-pmin[idx-1]),1); ll maxl=max(L,max(a[0][2],a[1][2])); if(maxl<max(max(ans[0][2],ans[1][2]),ans[2][2])){ ans[0]=a[0]; ans[1]=a[1]; ans[2]={pmin[idx-1],all[idx-1].fi-L,L}; } } //printf("4\n"); for(int i=0;i<n;i++)all[i].fi=-all[i].fi; sort(ALL(all)); disc.clear(); for(int i=0;i<n;i++){ if(i==0)disc.pb(i); else if(all[i].fi>all[i-1].fi)disc.pb(i); } for(int i=0;i<n;i++){ if(i==0){pmin[i]=all[i].se;pmax[i]=all[i].se;} else{pmin[i]=min(pmin[i-1],all[i].se);pmax[i]=max(pmax[i-1],all[i].se);} } l=1;r=SZ(disc)-1; while(l<r){ int m=(l+r+1)/2; int idx=disc[m]; v.clear(); for(int i=idx;i<n;i++)v.pb(all[i].se,-all[i].fi); two_input=v; a=find_two_squares(); int L=max(max(all[idx-1].fi-all[0].fi,pmax[idx-1]-pmin[idx-1]),1); if(L>max(a[0][2],a[1][2]))r=m-1; else l=m; } for(int m=l;m<=l+1;m++){ int idx=disc[m]; v.clear(); for(int i=idx;i<n;i++)v.pb(all[i].se,-all[i].fi); two_input=v; a=find_two_squares(); ll L=max(max(all[idx-1].fi-all[0].fi,pmax[idx-1]-pmin[idx-1]),1); ll maxl=max(L,max(a[0][2],a[1][2])); if(maxl<max(max(ans[0][2],ans[1][2]),ans[2][2])){ ans[0]=a[0]; ans[1]=a[1]; ans[2]={pmin[idx-1],-all[idx-1].fi,L}; } } for(int i=0;i<3;i++){for(int j=0;j<3;j++)printf("%lld ",ans[i][j]);printf("\n");} } } /* 5 2 1 3 3 1 5 5 5 10 7 7 5 3 1 3 3 1 5 5 5 10 7 7 */

Compilation message (stderr)

izvanzemaljci.cpp: In function 'int32_t main()':
izvanzemaljci.cpp:116:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  116 |  scanf("%d%d",&n,&k);
      |  ~~~~~^~~~~~~~~~~~~~
izvanzemaljci.cpp:119:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  119 |   scanf("%d%d",&x,&y);
      |   ~~~~~^~~~~~~~~~~~~~
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