Submission #382493

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
382493	2021-03-27T12:48:33 Z	BlancaHM	Topovi (COCI15_topovi)	C++14	60 / 120	53 ms	65540 KB

topovi

#include <iostream>
#include <vector>
#include <map>
using namespace std;
typedef long long int ll;

int N, K, P;
long long int attacked;
vector<int> rowXOR, colXOR;
map<pair<int, int>, int> rooks;
map<int, int> valRows, valCols;

void init() {
	attacked = 0;
	rowXOR.assign(N, 0);
	colXOR.assign(N, 0);
	valRows[0] = N;
	valCols[0] = N;
}

void include(int r, int c, int p) {
	attacked -= (ll) (N - valRows[colXOR[c]]);
	attacked -= (ll) (N - valCols[rowXOR[r]]);
	valRows[rowXOR[r]]--;
	valCols[colXOR[c]]--;
	rooks[{r, c}] = p;
	rowXOR[r] ^= p;
	colXOR[c] ^= p;
	valRows[rowXOR[r]]++;
	valCols[colXOR[c]]++;
	attacked += (ll) (N - valRows[colXOR[c]]);
	attacked += (ll) (N - valCols[rowXOR[r]]);
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	int r, c, p, r2, c2;
	cin >> N >> K >> P;
	init();
	for (int i = 0; i < K; i++) {
		cin >> r >> c >> p;
		include(r-1, c-1, p);
		//cout << attacked << '\n';
	}
	for (int i = 0; i < P; i++) {
		cin >> r >> c >> r2 >> c2;
		p = rooks[{r-1, c-1}];
		include(r-1, c-1, p);
		include(r2-1, c2-1, p);
		cout << attacked << '\n';
	}
	return 0;
}

Subtask #1

60.0 / 120.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	51 ms	15980 KB	Output is correct
7	Correct	41 ms	10732 KB	Output is correct
8	Correct	38 ms	14188 KB	Output is correct
9	Correct	37 ms	14572 KB	Output is correct
10	Correct	44 ms	14828 KB	Output is correct
11	Runtime error	53 ms	65540 KB	Execution killed with signal 9
12	Runtime error	49 ms	65540 KB	Execution killed with signal 9
13	Runtime error	48 ms	65536 KB	Execution killed with signal 9
14	Runtime error	49 ms	65540 KB	Execution killed with signal 9
15	Runtime error	49 ms	65540 KB	Execution killed with signal 9
16	Runtime error	51 ms	65540 KB	Execution killed with signal 9
17	Runtime error	49 ms	65540 KB	Execution killed with signal 9
18	Runtime error	48 ms	65540 KB	Execution killed with signal 9
19	Runtime error	48 ms	65536 KB	Execution killed with signal 9
20	Runtime error	44 ms	65536 KB	Execution killed with signal 9