[ { "min_n": 1, "max_n": 1000, "solvable_probability": 0.7, "value_range": [ 0, 10000 ] }, { "min_n": 1, "max_n": 500, "solvable_probability": 0.5, "value_range": [ 0, 1000 ] }, { "min_n": 2, "max_n": 500, "solvable_probability": 0.4, "value_range": [ 0, 100 ] }, { "min_n": 1, "max_n": 200, "solvable_probability": 0.3, "value_range": [ 0, 100 ] } ]