0xhmn

Headline

Checklist

1. Understand the problem and establish design scope

1. User/Customer

• who will use this system
• how this system will be used

0xhmn

import hre, { ethers } from "hardhat";
import { Contract } from "ethers";

describe("Forking", function () {
  it("Should fork mainnet4", async function () {
    const mainnetTestAccountAddress = "0x618d17fa59c67aEA20A88dc75d4E28E728a6fF28";
    const usdcAbi = require("@openzeppelin/contracts/build/contracts/IERC20.json").abi;
    const usdcAddress = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48";

    // check the block number

0xhmn

public class MinPathWithOneFlip {

    /**
     * [x,y,flip,dist] -> we can get to i=2,j=0 in two different ways: [2,0,1,1] && [2,0,0,8]
     * we should keep track of two different scenarios. if we have flipped and reached there or if we reached there with no flip
     */
    int[][] DIR = {{1,0}, {0,1}, {-1,0}, {0,-1}};
    int minPath(int[][] board) {

        int m = board.length;

0xhmn

public String sort(String s, int k) {

    Map<Character, Integer> map = new HashMap<>();
    for(char c : s.toCharArray()) {
        map.put(c, map.getOrDefault(c, 0) + 1);
    }

    // largest char first
    PriorityQueue<Map.Entry<Character, Integer>> pq = new PriorityQueue<>((a,b) -> {
        return (b.getKey() - a.getKey());

0xhmn

843
43
863
121
173
124
272
39
536
426