【Codeforces Round 271 (Div 2)D】【DP】Flowers 黑色必须连续摆放k,长度为n的摆放方案数
D. Flowerstime limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWe saw the little game Marmot made for Mole's lu