Linch1

let pancakeSwapAbi =  [
{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"}],"name":"getAmountsOut","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},
];
let tokenAbi = [
{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},
];
const Web3 = require('web3');

/*
Required Node.js

paulmillr

Hal Finney's explanation of secp256k1 "efficiently computable endomorphism" parameters used secp256k1 libraries, archived from source.

The same optimization could be applied to any Koblitz curve (e.g. Short Weistrass curve with a=0).

---

I implemented an optimized ECDSA verify for the secp256k1 curve, based on pages 125-129 of the Guide to Elliptic Curve Cryptography, by Hankerson, Menezes and Vanstone. I own the book but I also found a PDF on a Russian site which is more convenient.

secp256k1 uses the following prime for its x and y coordinates:

badstreff

from ctypes import *
# implemented from:
# http://referencesource.microsoft.com/#mscorlib/system/random.cs,dec894a7e816e665
class Random(object):
    def __init__(self, seed):
        self.seed = c_int(seed).value
        self.MBIG = 2147483647
        self.MMIN = -2147483648
        self.MZ = 0
        self.MSEED = 161803398

eevee

"""Perlin noise implementation."""
# Licensed under ISC
from itertools import product
import math
import random


def smoothstep(t):
    """Smooth curve with a zero derivative at 0 and 1, making it useful for
    interpolating.