If you remember your problems of the google challenge on 10 July, please list the problem, even if it is very brief.↵
<br>Some of the previous blogs regarding the problems -<br>↵
[https://codeforces.net/blog/entry/92765](https://codeforces.net/blog/entry/92765)<br>↵
[https://codeforces.net/blog/entry/92729](https://codeforces.net/blog/entry/92729)
[https://codeforces.net/blog/entry/92765](https://codeforces.net/blog/entry/92765)<br>↵
[https://codeforces.net/blog/entry/92729](https://codeforces.net/blog/entry/92729)