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Vivek Singh viveksb007

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@viveksb007
viveksb007 / SegmentTree.java
Created February 20, 2021 09:55
import java.util.Arrays;
public class SegmentTree {
private final MergeFunction<Integer, Integer, Integer> mergeFunction;
private final Integer[] tree;
public SegmentTree(Integer[] arr, MergeFunction<Integer, Integer, Integer> mergeFunction) {
tree = new Integer[findArraySizeToRepresentTree(arr.length)];
this.mergeFunction = mergeFunction;
@viveksb007
viveksb007 / IsPerfectSquare.java
Created June 13, 2020 07:41
StreamPost
import java.util.function.Predicate;
public class IsPerfectSquare implements Predicate<Integer> {
@Override
public boolean test(Integer x) {
return Math.floor(Math.sqrt(x)) == Math.sqrt(x);
}
}
@viveksb007
viveksb007 / CustomLevel.java
Created December 12, 2019 13:04
// Defining Custom log level in code
Level IMPORTANT = Level.forName("IMPORTANT", 250);
Logger logger = LogManager.getLogger();
logger.log(IMPORTANT, "Log Message");
@viveksb007
viveksb007 / SetRootLevel.java
Created December 12, 2019 13:01
Configurator.setRootLevel(Level.getLevel("IMPORTANT"));
logger.log(Level.getLevel("IMPORTANT"), "Log Message");
// After all important logging, you can set logging root level back to your default
Configurator.setRootLevel(Level.getLevel("ERROR"));
@viveksb007
viveksb007 / log4j2.properties
Last active December 12, 2019 05:18
customLevel.CUSTOM=450
customLevel.IMPORTANT=250
rootLogger.level=IMPORTANT
@viveksb007
viveksb007 / wr_send_file.py
Created March 22, 2018 05:19
@app.route('/uploads/<filename>')
def uploaded_file(filename):
return send_from_directory(app.config['DOWNLOAD_FOLDER'], filename, as_attachment=True)
@viveksb007
viveksb007 / wr_process.py
Created March 22, 2018 05:18
from PyPDF2 import PdfFileReader, PdfFileWriter
DOWNLOAD_FOLDER = os.path.dirname(os.path.abspath(__file__)) + '/downloads/'
app.config['DOWNLOAD_FOLDER'] = DOWNLOAD_FOLDER
def process_file(path, filename):
remove_watermark(path, filename)
def remove_watermark(path, filename):
@viveksb007
viveksb007 / wr_index.py
Created March 22, 2018 05:17
from flask import Flask, request, redirect, url_for, render_template, send_from_directory
from werkzeug.utils import secure_filename
@app.route('/', methods=['GET', 'POST'])
def index():
if request.method == 'POST':
if 'file' not in request.files:
print('No file attached in request')
return redirect(request.url)
file = request.files['file']
@viveksb007
viveksb007 / wr_allowed_extension.py
Created March 22, 2018 05:17
ALLOWED_EXTENSIONS = {'pdf'}
def allowed_file(filename):
return '.' in filename and filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
@viveksb007
viveksb007 / wr_index.html
Created March 22, 2018 05:16
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Watermark Remover</title>
</head>
<body>
<div align="center">
<h1>Cam-Scanner Watermark Remover</h1>
<h2>Upload new File</h2>