map is faster in cpp than unordered_map?

So today I was up solving Codeforces Round #790 (Div. 4) i got stuck in problem F bc i was using unordered_map and repetedly getting tle at 19th and 20th testcase i gave up and tried to look into solution i found out they were using map i tried it and it gets accepted instantaneously, then i wonder which map is faster, tried to look into some online resources but found oppsosite of it every online resource was say unordered_map is faster than map here is my submissions with map unordered_map someone plz help me in this i am really confused, i might get downvote for this but i just want to know the reason thank u