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답안 #927043

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
927043 2024-02-14T07:29:54 Z Gromp15 Soccer (JOI17_soccer) C++17
100 / 100
 523 ms 19540 KB 
#include <bits/stdc++.h>
#define ll long long
#define ar array
#define db double
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define rint(l, r) uniform_int_distribution<int>(l, r)(rng)
template<typename T> bool ckmin(T &a, const T &b) { return a > b ? a = b, 1 : 0; }
template<typename T> bool ckmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; }
void test_case() {
	int h, w, a, b, c;
	cin >> h >> w >> a >> b >> c;
	int n; cin >> n;
	vector<ar<int, 2>> p(n);
	for (auto &x : p) cin >> x[0] >> x[1];
	// dp[x][y] = min cost to have a player at (x, y) possessing the ball
	// after a player gets the ball and moves and kicks the ball, they will not move again
	const int dx[]{0, 1, -1, 0}, dy[]{1, 0, 0, -1};
	auto in = [&](int x, int y) {
		return x >= 0 && y >= 0 && x <= h && y <= w;
	};
	vector<vector<int>> dp2(h+1, vector<int>(w+1, 1e9));
	{
		queue<ar<int, 2>> q;
		for (int i = 0; i < n; i++) {
			auto [x, y] = p[i];
			if (ckmin(dp2[x][y], 0)) q.push({x, y});
		}
		while (q.size()) {
			auto [x, y] = q.front(); q.pop();
			for (int d = 0; d < 4; d++) {
				int nx = x + dx[d], ny = y + dy[d];
				if (!in(nx, ny)) continue;
				if (ckmin(dp2[nx][ny], dp2[x][y] + 1)) {
					q.push({nx, ny});
				}
			}
		}
	}
	const ll INF = 1e18;
	vector<vector<ll>> dp(h+1, vector<ll>(w+1, INF));
	dp[p[0][0]][p[0][1]] = 0;
	set<ar<ll, 3>> q;
	q.insert({0, p[0][0], p[0][1]});
	while (q.size()) {
		auto [weight, x, y] = *q.begin();
		q.erase(q.begin());
		// spread by walking
		for (int d = 0; d < 4; d++) {
			int nx = x + dx[d], ny = y + dy[d];
			ll new_cost = dp[x][y] + c;
			if (!in(nx, ny) || dp[nx][ny] <= new_cost) continue;
			if (dp[nx][ny] != INF) { 
				q.erase({dp[nx][ny], nx, ny});
			}
			dp[nx][ny] = new_cost;
			q.insert({new_cost, nx, ny});
		}
		// spread by kicking and having someone pick it up
		for (int d = 0; d < 4; d++) {
			for (int use = 1; use <= max(h, w); use++) {
				int nx = x + dx[d] * use, ny = y + dy[d] * use;
				if (!in(nx, ny)) break;
				ll new_cost = dp[x][y] + (ll)dp2[nx][ny] * c + (ll)use * a + b;
				if (dp[x][y] + (ll)use * a > dp[nx][ny]) break;
				if (dp[nx][ny] <= new_cost) continue;
				if (dp[nx][ny] != INF) { 
					q.erase({dp[nx][ny], nx, ny});
				}
				dp[nx][ny] = new_cost;
				q.insert({new_cost, nx, ny});
			}
		}
	}
	cout << dp[p[n-1][0]][p[n-1][1]] << '\n';



}
int main() {
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
//    cin >> t;
    while (t--) test_case();
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 73 ms 3416 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 430 ms 12740 KB Output is correct
4 Correct 416 ms 13668 KB Output is correct
5 Correct 116 ms 5496 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 365 ms 16976 KB Output is correct
2 Correct 298 ms 17540 KB Output is correct
3 Correct 269 ms 12624 KB Output is correct
4 Correct 401 ms 11848 KB Output is correct
5 Correct 225 ms 12624 KB Output is correct
6 Correct 431 ms 15640 KB Output is correct
7 Correct 237 ms 18768 KB Output is correct
8 Correct 349 ms 18780 KB Output is correct
9 Correct 266 ms 18700 KB Output is correct
10 Correct 28 ms 3160 KB Output is correct
11 Correct 254 ms 18832 KB Output is correct
12 Correct 284 ms 17996 KB Output is correct
13 Correct 307 ms 13392 KB Output is correct
14 Correct 246 ms 18768 KB Output is correct
15 Correct 178 ms 14932 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 73 ms 3416 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 430 ms 12740 KB Output is correct
4 Correct 416 ms 13668 KB Output is correct
5 Correct 116 ms 5496 KB Output is correct
6 Correct 365 ms 16976 KB Output is correct
7 Correct 298 ms 17540 KB Output is correct
8 Correct 269 ms 12624 KB Output is correct
9 Correct 401 ms 11848 KB Output is correct
10 Correct 225 ms 12624 KB Output is correct
11 Correct 431 ms 15640 KB Output is correct
12 Correct 237 ms 18768 KB Output is correct
13 Correct 349 ms 18780 KB Output is correct
14 Correct 266 ms 18700 KB Output is correct
15 Correct 28 ms 3160 KB Output is correct
16 Correct 254 ms 18832 KB Output is correct
17 Correct 284 ms 17996 KB Output is correct
18 Correct 307 ms 13392 KB Output is correct
19 Correct 246 ms 18768 KB Output is correct
20 Correct 178 ms 14932 KB Output is correct
21 Correct 13 ms 1372 KB Output is correct
22 Correct 362 ms 13680 KB Output is correct
23 Correct 360 ms 13904 KB Output is correct
24 Correct 340 ms 14604 KB Output is correct
25 Correct 523 ms 15940 KB Output is correct
26 Correct 392 ms 13812 KB Output is correct
27 Correct 47 ms 4540 KB Output is correct
28 Correct 282 ms 14932 KB Output is correct
29 Correct 412 ms 14512 KB Output is correct
30 Correct 457 ms 16328 KB Output is correct
31 Correct 255 ms 18772 KB Output is correct
32 Correct 377 ms 19540 KB Output is correct
33 Correct 410 ms 15636 KB Output is correct
34 Correct 419 ms 17028 KB Output is correct
35 Correct 492 ms 14828 KB Output is correct