{"ScriptPreparationCode":"var e = [];\r\nvar local = [];\r\nfor (let i = 0; i \u003C 100; i\u002B\u002B) {\r\n local.push(i \u002B 1);\r\n if (i !== 97) {\r\n\t\te.push(i)\r\n }\r\n}","TestCases":[{"Name":"using set","Code":"const set = new Set(e);\r\nconst lastNonCommonElement = local.findIndex(element =\u003E !set.has(element));","IsDeferred":false},{"Name":"using includes","Code":"const lastNonCommonElement = local.findIndex(element =\u003E !e.includes(element));","IsDeferred":false},{"Name":"using for loop","Code":"const set = new Set(e);\r\nlet deletedElementIndex = -1;\r\n\r\nfor (let i = 0; i \u003C local.length; i\u002B\u002B) {\r\n if (!set.has(e[i])) {\r\n deletedElementIndex = i;\r\n break;\r\n }\r\n}","IsDeferred":false}]}