結果
| 問題 |
No.584 赤、緑、青の色塗り
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 20:58:29 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,441 bytes |
| コンパイル時間 | 207 ms |
| コンパイル使用メモリ | 81,920 KB |
| 実行使用メモリ | 292,472 KB |
| 最終ジャッジ日時 | 2025-06-12 21:02:05 |
| 合計ジャッジ時間 | 5,557 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 6 |
| other | AC * 7 TLE * 1 -- * 6 |
ソースコード
MOD = 10**9 + 7
def main():
import sys
from collections import defaultdict
N, R, G, B = map(int, sys.stdin.readline().split())
K = R + G + B
# 颜色编码:0=空白,1=红,2=绿,3=蓝
# 状态:dp[i][pp][p][r][g][b]
# 由于空间限制,使用字典存储状态
dp = [defaultdict(int) for _ in range(N+1)]
dp[0][(0, 0, 0, 0, 0)] = 1 # (pp_color, p_color, r, g, b)
for i in range(N):
current_dp = dp[i]
next_dp = defaultdict(int)
for state in current_dp:
pp_color, p_color, r, g, b = state
count = current_dp[state]
for c in [0, 1, 2, 3]: # 当前涂的颜色选项(0=空白)
if c == 1:
if p_color == 1 or (pp_color != 0 and p_color != 0):
continue
if r + 1 > R:
continue
new_r = r + 1
new_g = g
new_b = b
elif c == 2:
if p_color == 2 or (pp_color != 0 and p_color != 0):
continue
if g + 1 > G:
continue
new_r = r
new_g = g + 1
new_b = b
elif c == 3:
if p_color == 3 or (pp_color != 0 and p_color != 0):
continue
if b + 1 > B:
continue
new_r = r
new_g = g
new_b = b + 1
else: # c=0,空白
new_r = r
new_g = g
new_b = b
# 检查三个连续的涂色情况
if pp_color != 0 and p_color != 0 and c != 0:
continue # 三个连续涂色,不允许
new_pp_color = p_color
new_p_color = c
next_state = (new_pp_color, new_p_color, new_r, new_g, new_b)
next_dp[next_state] = (next_dp[next_state] + count) % MOD
dp[i+1] = next_dp
# 最后,检查所有状态,其中r=R, g=G, b=B,并且i=N
total = 0
for state in dp[N]:
pp_color, p_color, r, g, b = state
if r == R and g == G and b == B:
total = (total + dp[N][state]) % MOD
print(total % MOD)
if __name__ == '__main__':
main()
gew1fw