Commit1b192f7

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adding some more answers

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Original file line number	Diff line number	Diff line change
`@@ -40,6 +40,10 @@ var helper = function(n, row, columnForRow, res){`
`40`	`40`
`41`	`41`	`varisValid=function(row,columnForRow){`
`42`	`42`	`for(vari=0;i<row;i++){`
	`43`	`+// 1. don't have to worry about values on the same column since it will onnly be set once`
	`44`	`+// 2. same column, columnForRow[row] === columnForRow[i]`
	`45`	`+// 3. checking both left and right diagonal, Math.abs(columnForRow[row] - columnForRow[i]) === row - i`
	`46`	`+// Math.abs(columnForRow[row] - columnForRow[i]) is checking both left and right diagonal`
`43`	`47`	`if(columnForRow[row]===columnForRow[i]\|\|Math.abs(columnForRow[row]-columnForRow[i])===row-i){`
`44`	`48`	`returnfalse;`
`45`	`49`	`}`

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