Praveer Naigaonkar praveer13
grantslatton
/ fizzbuzz.c
Last active
August 19, 2022 11:20
FizzBuzz solved using only bit twiddling. It essentially uses two deterministic finite automata for divisibility testing.
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| #include <stdio.h> | |
| int f0(unsigned int x) { return x? (x&(1<<31)? f1(x<<1) : f0(x<<1)) : 1; } | |
| int f1(unsigned int x) { return x? (x&(1<<31)? f3(x<<1) : f2(x<<1)) : 0; } | |
| int f2(unsigned int x) { return x? (x&(1<<31)? f0(x<<1) : f4(x<<1)) : 0; } | |
| int f3(unsigned int x) { return x? (x&(1<<31)? f2(x<<1) : f1(x<<1)) : 0; } | |
| int f4(unsigned int x) { return x? (x&(1<<31)? f4(x<<1) : f3(x<<1)) : 0; } | |
| int t0(unsigned int x) { return x? (x&(1<<31)? t1(x<<1) : t0(x<<1)) : 1; } | |
| int t1(unsigned int x) { return x? (x&(1<<31)? t0(x<<1) : t2(x<<1)) : 0; } | |
| int t2(unsigned int x) { return x? (x&(1<<31)? t2(x<<1) : t1(x<<1)) : 0; } |
hrbrmstr
/ nosql-451.R
Created
October 25, 2013 18:55
Example of alternative to grouped bar chart of http://blogs.the451group.com/information_management/2013/10/01/nosql-linkedin-skills-index-september-2013/ per request by @dseverski
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| library(ggplot) | |
| nosql.df <- read.csv("nosql.csv", header=TRUE) | |
| nosql.df$Database <- factor(nosql.df$Database, | |
| levels=c("MongoDB","Cassandra","Redis","HBase","CouchDB", | |
| "Neo4j","Riak","MarkLogic","Couchbase","DynamoDB")) | |
| gg <- ggplot(data=nosql.df, aes(x=Quarter, y=Index)) | |
| gg <- gg + geom_point(aes(color=Quarter), size=3) | |
| gg <- gg + facet_grid(Database~.) |
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| rm(list=ls()) | |
| library(plyr) | |
| library(ggplot2) | |
| library(RColorBrewer) | |
| price_data_dir = "C:\\***\\" | |
| price_data_filepaths = paste(price_data_dir,list.files(price_data_dir),sep="") | |
| price_data_list = lapply(price_data_filepaths,FUN<-function(x) read.csv(x,header=FALSE)) | |
| price_data = do.call(rbind,price_data_list) #this gives about 1.5mil transactions during 2010-2011 | |
| price_percentiles = quantile(price_data[,2],probs = seq(0.01,0.99,by=0.01)) #we know column 2 contains the prices |
dypsilon
/ frontendDevlopmentBookmarks.md
Last active
March 5, 2026 10:16
A badass list of frontend development resources I collected over time.
Attention: the list was moved to
https://github.com/dypsilon/frontend-dev-bookmarks
This page is not maintained anymore, please update your bookmarks.
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| #!/usr/bin/env python | |
| import os | |
| import random | |
| import time | |
| import platform | |
| snowflakes = {} | |
| try: | |
| # Windows Support |