Submission #268623

#	Time	Username	Problem	Language	Result	Execution time	Memory
268623		mayhoubsaleh	Topovi (COCI15_topovi)	C++14	120 / 120	1673 ms	46032 KiB

topovi

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define IOS ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);


using namespace std;
const ll maxn=1e6+100;
const ll inf=1e9+10;

ll n,k,q;
ll unat;
map<pair<ll,ll>,ll>a;
map<ll,ll>cntr,cntc,valr,valc;

void add(ll r,ll c,ll val){
    unat-=cntr[valc[c]];
    unat-=cntc[valr[r]];
    if(valc[c]==valr[r])unat++;
    cntc[valc[c]]--;
    cntr[valr[r]]--;
    valc[c]^=val;
    valr[r]^=val;
    cntc[valc[c]]++;
    cntr[valr[r]]++;
    unat+=cntc[valr[r]];
    unat+=cntr[valc[c]];
    if(valr[r]==valc[c])unat--;
    a[{r,c}]=val;
}

int main()
{
    IOS
    cin>>n>>k>>q;
    cntr[0]=cntc[0]=n;
    unat=n*n;
    while(k--){
        ll r,c,x;
        cin>>r>>c>>x;
        add(r,c,x);
    }

    while(q--){
        ll r,c,rr,cc;
        cin>>r>>c>>rr>>cc;
        ll x=a[{r,c}];
        add(r,c,x);
        add(rr,cc,x);
        cout<<n*n-unat<<endl;
    }
    return 0;
}

• Subtask 1: 120 / 120