{"problem":{"name":"Power Socket","description":{"content":"Takahashi's house has only one socket. Takahashi wants to extend it with some number of power strips, each with $A$ sockets, into $B$ or more empty sockets. One power strip with $A$ sockets can extend","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"abc139_b"},"statements":[{"statement_type":"Markdown","content":"Takahashi's house has only one socket.\nTakahashi wants to extend it with some number of power strips, each with $A$ sockets, into $B$ or more empty sockets.\nOne power strip with $A$ sockets can extend one empty socket into $A$ empty sockets.\nFind the minimum number of power strips required.\n\n## Constraints\n\n*   All values in input are integers.\n*   $2 \\leq A \\leq 20$\n*   $1 \\leq B \\leq 20$\n\n## Input\n\nInput is given from Standard Input in the following format:\n\n$A$ $B$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"abc139_b","tags":[],"sample_group":[["4 10","3\n\n$3$ power strips, each with $4$ sockets, extend the socket into $10$ empty sockets."],["8 9","2\n\n$2$ power strips, each with $8$ sockets, extend the socket into $15$ empty sockets."],["8 8","1"]],"created_at":"2026-03-03 11:01:13"}}