{"problem":{"name":"Equivalent Resistance","description":{"content":"In an electric circuit, when two resistors $R_1$ and $R_2$ are connected in parallel, the equivalent resistance $R_3$ can be derived from the following formula: *   $\\frac{1}{R_1} + \\frac{1}{R_2} = \\","description_type":"Markdown"},"platform":"AtCoder","limit":{"time_limit":2000,"memory_limit":262144},"difficulty":"None","is_remote":true,"is_sync":true,"sync_url":null,"sign":"relay_a"},"statements":[{"statement_type":"Markdown","content":"In an electric circuit, when two resistors $R_1$ and $R_2$ are connected in parallel, the equivalent resistance $R_3$ can be derived from the following formula:\n\n*   $\\frac{1}{R_1} + \\frac{1}{R_2} = \\frac{1}{R_3}$\n\nGiven $R_1$ and $R_2$, find $R_3$.\n\n## Constraints\n\n*   $1 \\leq R_1, R_2 \\leq 100$\n*   $R_1$ and $R_2$ are integers.\n\n## Input\n\nThe input is given from Standard Input in the following format:\n\n$R_1$ $R_2$\n\n[samples]","is_translate":false,"language":"English"}],"meta":{"iden":"relay_a","tags":[],"sample_group":[["2 3","1.2000000000"],["100 99","49.7487437186"]],"created_at":"2026-03-03 11:01:13"}}