Submission #115750

#	Time	Username	Problem	Language	Result	Execution time	Memory
115750		fadi57	Topovi (COCI15_topovi)	C++14	114 / 120	2040 ms	46072 KiB

topovi

#include <bits/stdc++.h>
using namespace std;
 

 
typedef long long     ll;
 
//-*-*-*-*-*-*-*-*-



ll n,z,k,t,ans,m,l,j;


map<ll,ll>r,c,xr,xc;
map<pair<ll,ll>,ll>h;

ll up(ll x,ll y,ll o){
  
   ans-=(n-(xc[r[x]]));
     ans-=(n-(xr[c[y]]));
     if(r[x]==c[y]){ans++;}
     xr[r[x]]--;
     r[x]^=o; //cout<<r[x]^o;
     xc[c[y]]--; 
     c[y]^=o;
     xr[r[x]]++;
     xc[c[y]]++;
     ans+=(n-(xc[r[x]]));
     ans+=(n-(xr[c[y]]));
 if(r[x]==c[y]){ans--;}
ll kk=9;return kk;
    

}
int main()
{
  
  

  cin>>n>>m>>t; 
  xr[0]=xc[0]=n;
  for(ll i=0;i<m;i++){
     ll x,y;
cin>>x>>y>>z; h[{x,y}]=z;

up(x,y,z);
  }

for(ll i=1;i<=t;i++){ 
   ll x,y;
cin>>x>>y>>j>>l;
ll o=h[{x,y}]; h[{x,y}]=0;up(x,y,o);up(j,l,o);
cout<<ans<<endl;h[{j,l}]=o;

  }
  return 0;
  
     

   }

• Subtask 1: 114 / 120