Submission #154157

#	Time	Username	Problem	Language	Result	Execution time	Memory
154157		SeekingOblivion	Relativnost (COCI15_relativnost)	C++14	0 / 140	4099 ms	61660 KiB

relativnost

#include<fstream>
#include<map>
#include<iostream>
#define fin cin
#define fout cout
using namespace std;
//ifstream fin("date.in");
//ofstream fout("date.out");
int i,j,n,k,p,s;
long long sol;
map<int,int> xori,xorj,fi,fj;
map<pair<int,int>,int> r;

void solve(int i,int j,int p)
{
    sol-=n-fj[xori[i]];
    sol-=n-fi[xorj[j]];
    fi[xori[i]]--;xori[i]^=p;fi[xori[i]]++;
    fj[xorj[j]]--;xorj[j]^=p;fj[xorj[j]]++;
    sol+=n-fj[xori[i]];
    sol+=n-fi[xorj[j]];
    r[make_pair(i,j)]^=p;
}

int main()
{
    fin>>n>>k>>p;
    fi[0]=fj[0]=n;
    for(;k--;)
    {
        fin>>i>>j>>s;
        solve(i,j,s);
    }
    for(;p--;)
    {
        fin>>i>>j;
        s=r[make_pair(i,j)];
        solve(i,j,s);
        fin>>i>>j;
        solve(i,j,s);
        fout<<sol<<"\n";
    }
    return 0;
}

• Subtask 1: 0 / 140