Way my code is run compiler error??? i think i don't have any false

Question

https://code.sololearn.com/cgZ2x9B9Cqds/?ref=app

Answer 1

Error:
1. using wrong operator with cout and cin
2. performing operations before inputting value.
Warning: put brackets in between variables while substraction, division and remainder .
Solutions are:
1. use << with cout
&>> with cin
2. either use them later after inputting value
or just declare them after inputting value
for implementation see this:
https://code.sololearn.com/cs6rqfCA7q4E/?ref=app

Answer 2

ok thank's my friends @Empty & @P_R

Answer 3

you have an error in
cout>> correct one is cout <<
cin << correct one is cin>>
https://code.sololearn.com/cuSxQQmEzcvU/?ref=app

Answer 4

Thank's my brother @Said