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Eric Tang ericxtang

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ericxtang / gist:1130273
Created August 7, 2011 10:21
k difference for interview street challenge
nk = STDIN.gets.split(" ")
nums_str = STDIN.gets.split(" ")
n = nk[0].to_i
k = nk[1].to_i
nums = nums_str.collect{|num| num.to_i}.sort!
h = {}
count = 0
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ericxtang / SampleContract.sol
Created October 21, 2016 01:27
pragma solidity ^0.4.2;
import "CodeStorage.sol";
contract SampleContract {
address csAddr;
string sourceUrl;
function SampleContract(address _csAddr, string _sourceUrl) {
csAddr = _csAddr;
@ericxtang
ericxtang / gist:0cd40e265e3894037cf47a1b579c345b
Created January 24, 2017 21:35
Verifying that "ericxtang.id" is my Blockstack ID. https://onename.com/ericxtang
@ericxtang
ericxtang / expvar_examples.go
Created February 14, 2017 01:17
examples for using expvar
package main
import "fmt"
import "time"
import "expvar"
import "encoding/json"
type Nodes struct {
peers map[string][]string
}
@ericxtang
ericxtang / latency.txt
Created April 3, 2017 19:56 — forked from jboner/latency.txt
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers
--------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@ericxtang
ericxtang / keybase.md
Created April 14, 2017 14:32

Keybase proof

I hereby claim:

  • I am ericxtang on github.
  • I am ericxtang (https://keybase.io/ericxtang) on keybase.
  • I have a public key ASCxFJZ2g3D20zYOyypn0PQO_UvM1LL7xxCkGOQZHcgZ1Qo

To claim this, I am signing this object:

@ericxtang
ericxtang / ladder.md
Created June 9, 2017 16:40 — forked from jamtur01/ladder.md
Kickstarter Engineering Ladder
@ericxtang
ericxtang / lptestnet eth req
Created August 27, 2017 00:39
0x30a8c918ff01f87b19901491761b1d2554a55108
@ericxtang
ericxtang / gist:00cf2ade8314e3c6c5bc5b0138270251
Created September 1, 2017 01:56
0x960e4e676e3c3ba35b54807086aad52da153f04f
@ericxtang
ericxtang / gist:b60cfc4a8de1cc5c43950d27f551a904
Created September 1, 2017 02:05
0x441bf0c5b6c71819546dab980b3fa1b8e27fab32