topic_one : ml by andrew ng : https://www.coursera.org/learn/machine-learning?utm_source=gg&utm_medium=sem&utm_campaign=07-StanfordML-IN&utm_content=07-StanfordML-IN&campaignid=1950458127&adgroupid=70518019333&device=c&keyword=machine%20learning%20certification%20programs&matchtype=b&network=g&devicemodel=&adpostion=&creativeid=351294690208&hide_mobile_promo&gclid=Cj0KCQjw59n8BRD2ARIsAAmgPmLk7V0fwD8qfhEIVs4yxryFCUJzvZiXNkKdM2NkimUvihBDNovtUFwaAjM_EALw_wcB topic_two : The Complete Machine Learning Course with Python : https://www.udemy.com/course/machine-learning-course-with-python/?utm_source=adwords&utm_medium=udemyads&utm_campaign=DataScience_v.PROF_la.EN_cc.INDIA_ti.5336&utm_content=deal4584&utm_term=_._ag_81684907582_._ad_437477497320_._kw__._de_c_._dm__._pl__._ti_dsa-774930036449_._li_9298573_._pd__._&matchtype=b&gclid=Cj0KCQjw59n8BRD2ARIsAAmgPmIByhuM5StDnrg3o3X4TgZ5RCpXiRUlFLIIiYE91aEkUlK1UrbMBU8aAs7NEALw_wcB topic_three : From 0 to 1: Data Structures & Algorithms in Java : https://www.udemy.com/course/from-0-to-1-data-structures/?utm_source=adwords&utm_medium=udemyads&utm_campaign=Java_v.PROF_la.EN_cc.INDIA_ti.6336&utm_content=deal4584&utm_term=_._ag_81264948185_._ad_437511380830_._kw__._de_c_._dm__._pl__._ti_dsa-774930034289_._li_9298573_._pd__._&matchtype=b&gclid=Cj0KCQjw59n8BRD2ARIsAAmgPmKhGq_fVvArBhr2VegvcFw_M4qciMH9zZv9D9rb3gGfZKnRJpgkRJYaAlQTEALw_wcB topic_four : Data structures and algo : https://www.coursera.org/courses?query=data%20structures%20and%20algorithms