Submission #159981

#	Time	Username	Problem	Language	Result	Execution time	Memory
159981		44442	Konj (COCI19_konj)	C++11	63 / 70	16 ms	9208 KiB

konj

#include <bits/stdc++.h>
using namespace std;
int n,ax[200004],ay[200004],bx[200004],by[200004],c,d,v[304][304],x,y,a,b,f[304][304],minn,maxx,MINN,MAXX,ok=1,t,tt,aa,aaa,bb,bbb,ca,da,ii,jj,ox,oy,kx,ky;
bool k[304][304],vis[400004];
deque<int>kor;
pair<int,int>p,r,h[304][304],g[400004];
int main (){
ios::sync_with_stdio(0);
     scanf("%d",&n);
     minn=504;
     MINN=504;
     for(int i=1;i<n+1;i++){
     	 scanf("%d %d %d %d\n", &ax[i],&ay[i],&bx[i],&by[i]);
     	 p=make_pair(ax[i],ay[i]);
     	 r=make_pair(bx[i],by[i]);
     	 if(!h[ax[i]][ay[i]].first){
     	 	 g[ok]=p;
     	 	 ok++;
     	 	 h[ax[i]][ay[i]]=make_pair(1,ok-1);
		 }
		 if(!h[bx[i]][by[i]].first){
		 	 g[ok]=r;
		 	 ok++;
		 	 h[bx[i]][by[i]]=make_pair(1,ok-1);
		 }
		 t=h[ax[i]][ay[i]].second;
		 tt=h[bx[i]][by[i]].second;
		 k[t][tt]=1;
		 k[tt][t]=1;
     }
	 scanf("%d %d",&c,&d);
	 p=make_pair(c,d);
	 jj=h[c][d].second;
	 for(int i=1;i<n+1;i++){
	 	 ox=min(ax[i],bx[i]);
	 	 kx=max(ax[i],bx[i]);
	 	 oy=min(ay[i],by[i]);
	 	 ky=max(ay[i],by[i]);
		 if(ax[i]==bx[i]){
	 	     if(ax[i]==c and (oy<d and d<ky)){
	 	     	 kor.push_back(h[ax[i]][ay[i]].second);
			  }
		 }
		 else{
		 	 if(ay[i]==d and (ox<c and c<kx)){
		 	 	 kor.push_back(h[ax[i]][ay[i]].second);
			  }
		 }
	 }
	 kor.push_front(jj);
	 while(!kor.empty()){
	     ii=kor.front();
	 	 kor.pop_front();
	 	 if(!vis[ii]){
	 	 	 for(int j=0;j<ok+1;j++){
	             if(k[ii][j]){
	     	 	 	 a=g[ii].first;
	     			 b=g[ii].second;
	     			 ca=g[j].first;
	     			 da=g[j].second;
	 	    		 v[a][b]=1;
	 	    		 v[ca][da]=1;
	 	    		 kor.push_back(j);
	 	    		 aa=min(a,ca);
	 	    		 aaa=max(a,ca);
	 	    		 bb=min(b,da);
	 	    		 bbb=max(b,da);
	 	    		 minn=min(minn,bb);
	 				 maxx=max(maxx,bbb);
	 				 MINN=min(MINN,aa);
	 				 MAXX=max(MAXX,aaa);
	    	 	 }
	   		 }
	         vis[ii]=1;
		 }
     }
	 for(int i=1;i<n+1;i++){
	 	 if(v[ax[i]][ay[i]]){
	 	 	 if(ay[i]==by[i]){
	 	 	 	 c=min(ax[i],bx[i]);
	 	 	 	 d=max(ax[i],bx[i]);
	 	 	     for(int j=c;j<d+1;j++){
	 	 	         f[j][ay[i]]=1;
                 } 
		     }
		     else{
		     	 c=min(ay[i],by[i]);
		     	 d=max(ay[i],by[i]);
		     	 for(int j=c;j<d+1;j++){
		     	 	 f[ax[i]][j]=1;
				  }  
			 }
		  }
	 }
	  for(int i=maxx;i>minn-1;i--){
	  	 for(int j=MINN;j<MAXX+1;j++){
	  	 	 if(f[j][i]){
	  	 	 	 printf("#");
				}
			 else{
			 	 printf(".");
			 }
		   }
		 printf("\n");
	  } 
return 0;
}

Compilation message (stderr)

konj.cpp: In function 'int main()':
konj.cpp:9:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
      scanf("%d",&n);
      ~~~~~^~~~~~~~~
konj.cpp:13:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
        scanf("%d %d %d %d\n", &ax[i],&ay[i],&bx[i],&by[i]);
        ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
konj.cpp:31:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&c,&d);
   ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 63 / 70