09-06 HDU_Steps4.3 DFS剪枝 HDU1010 HDU1016 HDU1426 HDU1455 HDU2510 HDU2553 HDU3290 HDU2616
HDU_Steps4.3DFS剪枝4.3.1HDU1010 TempteroftheBone具体剪枝在这篇文章有写http://blog.csdn.net/swm8023/article/details/67311094.3.2 HDU1016 PrimeRingProblem直接搜就可以了,先打好40以内的素数表4.3.3HDU1426 SudokuKiller也是赤果果的搜索+回溯,对每个未填