Submission #89418

#	Time	Username	Problem	Language	Result	Execution time	Memory
89418		jasony123123	Topovi (COCI15_topovi)	C++11	120 / 120	583 ms	29556 KiB

topovi

#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
#include <unordered_map>
//#include <ext/pb_ds/tree_policy.hpp>
//#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
//using namespace __gnu_pbds;
#define FOR(i,start,end) for(int i=start;i<(int)(end);i++)
#define FORE(i,start,end) for(int i=start;i<=(int)end;i++)
#define RFOR(i,start,end) for(int i = start; i>end; i--)
#define RFORE(i,start,end) for(int i = start; i>=end; i--)
#define all(a) a.begin(), a.end()
#define mt make_tuple
#define v vector
#define sf scanf
#define pf printf
#define dvar(x) cout << #x << " := " << x << "\n"
#define darr(x,n) FOR(i,0,n) cout << #x << "[" << i << "]" << " := " << x[i] << "\n"
typedef long long ll;
typedef long double ld;
typedef pair<int, int > pii;
typedef pair<ll, ll> pll;
//template <class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<class T> void minn(T &a, T b) { a = min(a, b); }
template<class T> void maxx(T &a, T b) { a = max(a, b); }
inline void io() {
#ifdef LOCAL_PROJECT 
	freopen("input.in", "r", stdin); freopen("output.out", "w", stdout);
#else 
	/* online submission */
#endif 
	ios_base::sync_with_stdio(false); cin.tie(NULL);
}
/***************************************************/

// R, C
ll ans = 0;
int N;
int K, P; // initial, moves
v<pair<pii, int>> initial;
v<pair<pii, pii>> moves;
v<int> colCum, rowCum;
map<int, int> colCnt, rowCnt; // XOR value, cnt
map<pii, int> rooks;

ll contri(int r, int c) {
	ll ret = 0;
	if (rowCum[r] > 0)
		ret += N - colCum.size();
	ret += colCum.size() - colCnt[rowCum[r]];
	if (colCum[c] > 0)
		ret += N - rowCum.size();
	ret += rowCum.size() - rowCnt[colCum[c]];
	if ((colCum[c] ^ rowCum[r]))
		ret--;
	return ret;
}

void update(int r, int c, int x) {
	ans -= contri(r, c);
	rowCnt[rowCum[r]]--;
	colCnt[colCum[c]]--;
	rowCum[r] ^= x;
	colCum[c] ^= x;
	rowCnt[rowCum[r]]++;
	colCnt[colCum[c]]++;
	ans += contri(r, c);
}

void compressCoord() {
	v<int> rdat, cdat;
	for (auto& x : initial) {
		rdat.emplace_back(x.first.first);
		cdat.emplace_back(x.first.second);
	}
	for (auto& x : moves) {
		rdat.emplace_back(x.first.first);
		cdat.emplace_back(x.first.second);
		rdat.emplace_back(x.second.first);
		cdat.emplace_back(x.second.second);
	}
	sort(all(rdat));
	rdat.erase(unique(all(rdat)), rdat.end());
	sort(all(cdat));
	cdat.erase(unique(all(cdat)), cdat.end());
	for (auto& x : initial) {
		x.first.first = lower_bound(all(rdat), x.first.first) - rdat.begin();
		x.first.second = lower_bound(all(cdat), x.first.second) - cdat.begin();
	}
	for (auto& x : moves) {
		x.first.first = lower_bound(all(rdat), x.first.first) - rdat.begin();
		x.first.second = lower_bound(all(cdat), x.first.second) - cdat.begin();
		x.second.first = lower_bound(all(rdat), x.second.first) - rdat.begin();
		x.second.second = lower_bound(all(cdat), x.second.second) - cdat.begin();
	}
	colCum.resize(cdat.size());
	rowCum.resize(rdat.size());
}

int main() {
	io();
	cin >> N >> K >> P;
	initial.resize(K);
	moves.resize(P);
	FOR(i, 0, K) {
		cin >> initial[i].first.first >> initial[i].first.second >> initial[i].second;
	}
	FOR(i, 0, P) {
		cin >> moves[i].first.first >> moves[i].first.second >> moves[i].second.first >> moves[i].second.second;
	}
	compressCoord();

/*	FOR(i, 0, K) {
		cout << " " << initial[i].first.first << " " << initial[i].first.second << " " << initial[i].second << "\n";
	}
	FOR(i, 0, P) {
		cout << " " << moves[i].first.first << " " << moves[i].first.second << " " << moves[i].second.first << " " << moves[i].second.second << "\n";
	}*/

	rowCnt[0] = rowCum.size();
	colCnt[0] = colCum.size();

	for (auto& op : initial) {
		update(op.first.first, op.first.second, op.second);
		rooks[op.first] = op.second;
	}
	for (auto &op : moves) {
		auto it = rooks.find(op.first);
		int x = it->second;
		rooks.erase(it);
		update(op.first.first, op.first.second, x);
		update(op.second.first, op.second.second, x);
		rooks[op.second] = x;
		cout << ans << "\n";
	}
	return 0;
}

• Subtask 1: 120 / 120