Muhammad Altabba Muhammad-Altabba

Web3 Developer

Muhammad-Altabba / vrpsolver.py

Last active February 4, 2019 06:43 — forked from ilaif/vrpsolver.py

VRP (Vehicle Routing Problem) Solver using OR-Tools library in python

	from ortools.constraint_solver import pywrapcp
	from ortools.constraint_solver import routing_enums_pb2
	import argparse
	import json
	import sys

	is_debug = False


	class CreateDistanceCallback(object):

Muhammad-Altabba / timepan.ts

Last active January 23, 2019 23:32 — forked from ranwahle/timepan.ts

.Net-like timespan class in TypeScript

	const MILLISECONDS_IN_A_SECOND = 1000;
	const SECONDS_IN_A_MINUTE = 60;
	const MINUTES_IN_AN_HOUR = 60;
	const HOURS_IN_A_DAY = 24;
	const DAYS_IN_A_WEEK = 7;

	const MILLISECONDS_IN_A_MINUTE = MILLISECONDS_IN_A_SECOND * SECONDS_IN_A_MINUTE;
	const MILLISECONDS_IN_AN_HOUR = MILLISECONDS_IN_A_MINUTE * MINUTES_IN_AN_HOUR;
	const MILLISECONDS_IN_A_DAY = MILLISECONDS_IN_AN_HOUR * HOURS_IN_A_DAY;
	const MILLISECONDS_IN_A_WEEK = MILLISECONDS_IN_A_DAY * DAYS_IN_A_WEEK;

Muhammad-Altabba / Contract_calls.sol

Last active February 20, 2024 10:45 — forked from critesjosh/Contract_calls.sol

CALL vs CALLCODE vs DELEGATECALL in Solidity

	pragma solidity ^0.5.0;

	contract C1 {
	uint public num;
	address public sender;

	function callSetNum(address c2, uint _num) public {
	(bool res,) = c2.call(abi.encodePacked(bytes4(keccak256("setNum(uint256)")), _num));
	if(!res) revert(); // C2's num is set
	}