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Help needed in a problem
Hi guy, I was try to solve this problem (vietnameses) : https://mirror.codeforces.com/group/FLVn1Sc504/contest/274522/problem/Q
Translate : Given an integer n. Write all number from 1 to n and calculate sum of digit of all number.
For ex :
n = 5: 1 + 2 + 3 + 4 + 5 = 15
I found a solution for problem above : https://vnoi.info/problems/show_solution/SPSUM/1387592/
But i don't understand f10[] array in that code (after 5 hours thinking and still don't get it). Can somebody explain for me?
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en2 |
|
i_will_love_you_forever | 2020-12-09 07:58:34 | 3 | Tiny change: ' I was try to solve ' -> ' I was trying to solve ' | |
| en1 |
|
i_will_love_you_forever | 2020-12-09 07:58:15 | 543 | Initial revision (published) |
