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답안 #537046

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
537046 2022-03-14T10:09:54 Z pavement Dango Maker (JOI18_dango_maker) C++17
13 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
#define int long long
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ppb pop_back
#define eb emplace_back
#define g0(a) get<0>(a)
#define g1(a) get<1>(a)
#define g2(a) get<2>(a)
#define g3(a) get<3>(a)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
using db = double;
using ll = long long;
using ld = long double;
using ii = pair<int, int>;
using iii = tuple<int, int, int>;
using iiii = tuple<int, int, int, int>;
template<class key, class value = null_type, class cmp = less<key> >
using ordered_set = tree<key, value, cmp, rb_tree_tag, tree_order_statistics_node_update>;

int N, M, ans, dp[6005];
char C[3005][3005];

main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> N >> M;
	for (int i = 1; i <= N; i++)
		for (int j = 1; j <= M; j++)
			cin >> C[i][j];
	for (int j = 1; j <= M; j++) {
		// diagonal ends at (1, j)
		int idx = 1;
		for (int r = 1, c = j; r <= N && 1 <= c; r++, c--, idx++) {
			if (C[r][c] == 'R') {
				dp[idx] = dp[idx - 1];
				if (r + 2 <= N && C[r + 1][c] == 'G' && C[r + 2][c] == 'W') dp[idx] = max(dp[idx], dp[idx - 1] + 1);
				if (c + 2 <= N && C[r][c + 1] == 'G' && C[r][c + 2] == 'W') dp[idx] = max(dp[idx], (idx - 3 >= 1 ? dp[idx - 3] : 0) + 1);
			} else dp[idx] = dp[idx - 1];
		}
		ans += dp[idx - 1];
	}
	for (int i = 2; i <= N; i++) {
		// diagonal ends at (i, M)
		int idx = 1;
		for (int r = i, c = M; r <= N && 1 <= c; r++, c--, idx++) {
			if (C[r][c] == 'R') {
				dp[idx] = dp[idx - 1];
				if (r + 2 <= N && C[r + 1][c] == 'G' && C[r + 2][c] == 'W') dp[idx] = max(dp[idx], dp[idx - 1] + 1);
				if (c + 2 <= N && C[r][c + 1] == 'G' && C[r][c + 2] == 'W') dp[idx] = max(dp[idx], (idx - 3 >= 1 ? dp[idx - 3] : 0) + 1);
			} else dp[idx] = dp[idx - 1];
		}
		ans += dp[idx - 1];
	}
	cout << ans << '\n';
}

Compilation message

dango_maker.cpp:32:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   32 | main() {
      | ^~~~

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Incorrect 1 ms 340 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #3
0 / 67.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Incorrect 1 ms 340 KB Output isn't correct
19 Halted 0 ms 0 KB -