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New upload #12

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c1f6c70
Add files via upload
liuhuilm Aug 25, 2016
7cc3b3d
I try to upload zipped file.
liuhuilm Aug 26, 2016
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Binary file added MissingNumber.zip
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45 changes: 45 additions & 0 deletions findmissingnumber.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>Find Missing Number</title>
<script type="text/javascript" src="myJS.js"></script>
</head>
<body>

<div>

<h1>Select a text file to find missing number</h1>
<p>
1) Each new line will contain a set of sequential numbers with one number missing.<br />
2) Each series will be comma delimited and in a random order.
</p>
<div>
Select a text file:
<input type="file" id="textfile" onchange="find()" />
</div>
<div id="result" style="display:none">
<table style="width:90%" border="1">
<tr><td style="width:50%">Input:</td>
<td>Output:</td></tr>
<tr>
<td>
<div id="showfile">
</div>
</td>
<td>
<div id="showmissing"></div>
</td>
</tr>
</table>


</div">
</div>


</body>
</html>
59 changes: 59 additions & 0 deletions myJS.js
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// JavaScript source code
var number_array = [];
var validFileExtensions = [".txt"];
function find() {
var textfile = document.getElementById('textfile');
var showfile = document.getElementById('showfile');
var file = textfile.files[0];
var textType = /text.*/;
if (hasExtension('textfile', validFileExtensions) ){
var reader = new FileReader();
reader.onload = function (e) {
showfile.innerText = reader.result;
var numbers = reader.result.toString().split("\n");
var number_list, missing_number,missing_string="";
for (var i = 0; i < numbers.length; i++) {
number_list = numbers[i].split(",");
if (number_list.length > 0) {
number_array[i] = number_list;
missing_number = findmissing(number_array[i]);
missing_string += missing_number +"\n";
}

}
document.getElementById("showmissing").innerText = missing_string
//alert(number_array.length)
}
reader.readAsText(file);

document.getElementById("result").style.display = "";
} else {
showfile.innerText = "Please select a text file!"
}

}

function findmissing(array) {
var size, max, min, sum_all=0,sum=0, i;
max = Math.max.apply(null, array);
min = Math.min.apply(null, array);
size = array.length;
sum_all = (size+1) * (min + max) / 2;
for( i=0;i<size;i++){
sum += parseInt(array[i]);

}
return sum_all - sum;
}
function hasExtension(inputID, exts) {
var fileName = document.getElementById(inputID).value;
return (new RegExp('(' + exts.join('|').replace(/\./g, '\\.') + ')$')).test(fileName);
}

Array.prototype.max = function () {
return Math.max.apply(null, this);
};

Array.prototype.min = function () {
return Math.min.apply(null, this);
};
5 changes: 5 additions & 0 deletions number.txt
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1,2,3,4,5,6,7,8,9,10,12
24,26,27,29,28
1,2,4,5
99,100,101,102,103,104,105,107
109,105,107,108,106,110,112,111,118,116,115,114,117