oj.uz

답안 #543071

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
543071 2022-03-29T04:38:04 Z skittles1412 Plus Minus (BOI17_plusminus) C++17
100 / 100
 82 ms 8224 KB 
#include "bits/extc++.h"

using namespace std;

template <typename T>
void dbgh(const T& t) {
	cerr << t << endl;
}

template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
	cerr << t << " | ";
	dbgh(u...);
}

#ifdef DEBUG
#define dbg(...)                                           \
	cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
		 << ": ";                                          \
	dbgh(__VA_ARGS__)
#else
#define cerr   \
	if (false) \
	cerr
#define dbg(...)
#endif

#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())

const long mod = 1e9 + 7;

using V = vector<tuple<int, int, bool>>;

long bpow(long base, long exp) {
	long ans = 1;
	while (exp) {
		if (exp & 1) {
			ans = (ans * base) % mod;
		}
		base = (base * base) % mod;
		exp >>= 1;
	}
	return ans;
}

long check(int n, int m, const V &arr) {
	map<int, bool> mp;
	for (auto& [x, y, b] : arr) {
		int cur = (y ^ b) & 1;
		auto [it, inserted] = mp.emplace(x, cur);
		if (it->second != cur) {
			return 0;
		}
	}
	return bpow(2, n - sz(mp));
}

void solve() {
	int n, m, k;
	cin >> n >> m >> k;
	V arr(k);
	for (auto& [x, y, b] : arr) {
		char c;
		cin >> c >> x >> y;
		x--;
		y--;
		b = c == '+';
	}
	long hori = check(n, m, arr);
	for (auto& [x, y, b] : arr) {
		swap(x, y);
	}
	long vert = check(m, n, arr);
	long ans = hori + vert;
	if (hori && vert) {
		if (k) {
			ans--;
		} else {
			ans -= 2;
		}
	}
	ans %= mod;
	if (ans < 0) {
		ans += mod;
	}
	cout << ans << endl;
}

int main() {
	cin.tie(nullptr);
	ios_base::sync_with_stdio(false);
	cin.exceptions(ios::failbit);
	solve();
}

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct

Subtask #2
42.0 / 42.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 15 ms 2388 KB Output is correct
17 Correct 16 ms 2444 KB Output is correct
18 Correct 16 ms 2388 KB Output is correct
19 Correct 29 ms 2396 KB Output is correct
20 Correct 28 ms 2380 KB Output is correct

Subtask #3
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 15 ms 2388 KB Output is correct
17 Correct 16 ms 2444 KB Output is correct
18 Correct 16 ms 2388 KB Output is correct
19 Correct 29 ms 2396 KB Output is correct
20 Correct 28 ms 2380 KB Output is correct
21 Correct 64 ms 5544 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 20 ms 2824 KB Output is correct
24 Correct 20 ms 2748 KB Output is correct
25 Correct 19 ms 2760 KB Output is correct
26 Correct 42 ms 5848 KB Output is correct
27 Correct 38 ms 5516 KB Output is correct
28 Correct 47 ms 6004 KB Output is correct
29 Correct 73 ms 7040 KB Output is correct
30 Correct 82 ms 8224 KB Output is correct