Convert profiler log output to an outline. Let\'s say we have a simple profiler that logs a line to a file with the time when each method is entered or exited. For example, if main() calls foo() then the output is:\t\n\n```\nt1, main, enter\nt2, foo1, enter\nt3, foo1, exit\nt4, foo2, enter\nt5, foo2, exit\nt6, main, exit\n```\n\nFor above logs, output should be printed as. Note there is a tab after main.\n```\nmain (t6 - t1)\n  foo1 (t3 - t2)\n  foo2 (t5 - t4)\n```\n\nFollow up:\nWhat if same function is getting called over and again as in recursion?\n```\nt1, main, enter\nt2, foo, enter\nt3, foo, enter\nt4, foo, exit\nt5, foo, exit\nt6, main, exit\n```\nFor above logs, output should be printed as. Note there is a tab after main.\n```\nmain (t6 - t1)\n  foo (t4 - t3)\n\t  foo (t5 - t2)\n```\n

Convert profiler log output to an outline. Let\'s say we have a simple profiler that logs a line to a file with the time when each method is entered or exited. 