algo2025/backtracking/new_cost_analysis.csv

1	n	method	nodes	time_us
2	5	Fractional	31	0
3	5	Simple	126	3
4	10	Fractional	85	1
5	10	Simple	674	26
6	15	Fractional	149	3
7	15	Simple	1611	64
8	20	Fractional	130	2
9	20	Simple	1962	78
10	25	Fractional	137	2
11	25	Simple	2319	87