{ "name": "all_interval_n3__v10_nh", "problem_type": "all_interval", "params": { "n": 3 }, "prompt": "Find an all-interval series of size 3. This is a permutation of 0 to 2 such that the absolute differences between consecutive elements are also a permutation of 1 to 2.\n\nReturn a list of 3 integers forming a valid permutation, or state \"UNSATISFIABLE\" if no solution exists.", "satisfiable": true, "solution": { "x": [ 0, 2, 1 ], "d": [ 2, 1 ] }, "difficulty": { "solve_time_ms": 983.9, "search_space": 6, "num_variables": 5, "num_constraints": 6, "num_edges": -1, "backend": "pycsp", "solve_tier": "hard", "solve_pct_global": 68.23, "solve_pct_type": 37.5 }, "partial_assignment": null }