結果
| 問題 |
No.584 赤、緑、青の色塗り
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-16 00:12:08 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,599 bytes |
| コンパイル時間 | 417 ms |
| コンパイル使用メモリ | 81,656 KB |
| 実行使用メモリ | 86,632 KB |
| 最終ジャッジ日時 | 2025-04-16 00:13:33 |
| 合計ジャッジ時間 | 4,748 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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
n, R, G, B = map(int, input().split())
total = R + G + B
if total > n:
print(0)
exit()
from collections import defaultdict
current = defaultdict(int)
current[(0, 0, 0, 0, 0)] = 1 # (prev_color, streak, r, g, b)
for i in range(n):
next_dp = defaultdict(int)
for (prev_color, streak, r, g, b), cnt in current.items():
# Option 1: Do not paint the current cell
new_pc = 0
new_streak = 0
key = (new_pc, new_streak, r, g, b)
next_dp[key] = (next_dp[key] + cnt) % MOD
# Option 2: Paint the current cell, if possible
if streak < 2:
for color in [1, 2, 3]:
if color == prev_color:
continue
# Check if we can use this color
if color == 1 and r >= R:
continue
if color == 2 and g >= G:
continue
if color == 3 and b >= B:
continue
# Update counts
nr = r + (1 if color == 1 else 0)
ng = g + (1 if color == 2 else 0)
nb = b + (1 if color == 3 else 0)
if nr > R or ng > G or nb > B:
continue
new_p = color
new_s = streak + 1
key_p = (new_p, new_s, nr, ng, nb)
next_dp[key_p] = (next_dp[key_p] + cnt) % MOD
current = next_dp
result = 0
for (pc, s, r, g, b), cnt in current.items():
if r == R and g == G and b == B:
result = (result + cnt) % MOD
print(result)
lam6er