Arbitrage Detection

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Consider a market for financial transactions that is based on trading commodities. The table below shows conversion rates among currencies. USD 1 0.741 0.657 1.061 1.005 EUR 1.349 1 0.888 1.433 1.366 GBP 1.521 1.126 1 1.614 1.538 CHF 0.942 0.698 0.619 1 0.953 CAD 0.995 0.732 0.650 1.049 1 The table has one line per currency, giving its name followed by the conversion rates to the other currencies. An arbitrage opportunity is a directed cycle such that the product of the exchange rates is greater than one. For example, our table says that 1,000 U.S. dollars will buy 1,000.00 × .741 = 741 euros, then we can buy 741 × 1.366 = 1,012.206 Canadian dollars with our euros, and finally, 1,012.206 × .995 = 1,007.14497 U.S. dollars with our Canadian dollars, a 7.14497-dollar profit! Output: a list of solutions, where each solution has the following fields: - amounts: how much 1 unit of the first currency is worth in the others (the ones in the ' currencies' field) - currencies: the currency conversions - profit: the amount of profit in the first currency - ratio: the profit ratio

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1. Type your input

2. See the result

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3. Use this algorithm

curl -X POST -d '{{input | formatInput:"curl"}}' -H 'Content-Type: application/json' -H 'Authorization: Simple YOUR_API_KEY' https://api.algorithmia.com/v1/algo/Aluxian/ArbitrageDetection/0.1.0
View cURL Docs
algo auth
# Enter API Key: YOUR_API_KEY
algo run algo://Aluxian/ArbitrageDetection/0.1.0 -d '{{input | formatInput:"cli"}}'
View CLI Docs
import com.algorithmia.*;
import com.algorithmia.algo.*;

String input = "{{input | formatInput:"java"}}";
AlgorithmiaClient client = Algorithmia.client("YOUR_API_KEY");
Algorithm algo = client.algo("algo://Aluxian/ArbitrageDetection/0.1.0");
AlgoResponse result = algo.pipeJson(input);
System.out.println(result.asJsonString());
View Java Docs
import com.algorithmia._
import com.algorithmia.algo._

val input = {{input | formatInput:"scala"}}
val client = Algorithmia.client("YOUR_API_KEY")
val algo = client.algo("algo://Aluxian/ArbitrageDetection/0.1.0")
val result = algo.pipeJson(input)
System.out.println(result.asJsonString)
View Scala Docs
var input = {{input | formatInput:"javascript"}};
Algorithmia.client("YOUR_API_KEY")
           .algo("algo://Aluxian/ArbitrageDetection/0.1.0")
           .pipe(input)
           .then(function(output) {
             console.log(output);
           });
View Javascript Docs
var input = {{input | formatInput:"javascript"}};
Algorithmia.client("YOUR_API_KEY")
           .algo("algo://Aluxian/ArbitrageDetection/0.1.0")
           .pipe(input)
           .then(function(response) {
             console.log(response.get());
           });
View NodeJS Docs
import Algorithmia

input = {{input | formatInput:"python"}}
client = Algorithmia.client('YOUR_API_KEY')
algo = client.algo('Aluxian/ArbitrageDetection/0.1.0')
print algo.pipe(input)
View Python Docs
library(algorithmia)

input <- {{input | formatInput:"r"}}
client <- getAlgorithmiaClient("YOUR_API_KEY")
algo <- client$algo("Aluxian/ArbitrageDetection/0.1.0")
result <- algo$pipe(input)$result
print(result)
View R Docs
require 'algorithmia'

input = {{input | formatInput:"ruby"}}
client = Algorithmia.client('YOUR_API_KEY')
algo = client.algo('Aluxian/ArbitrageDetection/0.1.0')
puts algo.pipe(input).result
View Ruby Docs
use algorithmia::*;

let input = {{input | formatInput:"rust"}};
let client = Algorithmia::client("YOUR_API_KEY");
let algo = client.algo('Aluxian/ArbitrageDetection/0.1.0');
let response = algo.pipe(input);
View Rust Docs
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