Which application is used for coading in phone

Question

https://code.sololearn.com/W7Z6RBik8RaT/?ref=app
https://code.sololearn.com/cuQCc5jkPjBA/?ref=app
https://code.sololearn.com/c6sAz7H7m6Lf/?ref=app
https://code.sololearn.com/c7y1o0rZ8Ac6/?ref=app
https://code.sololearn.com/WyNO0aTm3CC3/?ref=app
https://code.sololearn.com/cts625QwwQp9/?ref=app
https://code.sololearn.com/WHSQ5lmdjbIF/?ref=app
https://code.sololearn.com/WInp7t4TidxB/?ref=app
https://code.sololearn.com/W2mrBsnRcypI/?ref=app
https://code.sololearn.com/WZ3iEK418011/?ref=app
https://code.sololearn.com/c2qmyClB8Dbh/?ref=app
https://code.sololearn.com/WgMs9vW2Yzux/?ref=app
https://code.sololearn.com/c6fawSfeaMk1/?ref=app
https://code.sololearn.com/WGaSkp5YuZUQ/?ref=app
https://code.sololearn.com/c6NoTkCCk0b0/?ref=app
https://code.sololearn.com/Wl0pTLD4U27B/?ref=app
https://code.sololearn.com/WRtkkAuLH5SG/?ref=app
https://code.sololearn.com/WddZLl9zpuO2/?ref=app
https://code.sololearn.com/WgJOJi2UR7z3/?ref=app
https://code.sololearn.com/W7rMn8qcqazq/?ref=app
https://code.sololearn.com/c3kIVx6Xoxqv/?ref

Answer 1

And do not spam if you are really asking a question and do not want to get reported

Answer 2

Coding

Answer 3

Thanx for help