Codeforces Round 449 (Div. 2)

1 problems from Codeforces Round 449 (Div. 2) (contest 897), difficulty 1300-1300. 1/1 solutions verified against sample I/O.

1 items

Codeforces Round 449 (Div. 2)

Div. 2 | 1 problems | 1/1 verified | Difficulty 1300-1300 | 1m 7s

#	Problem	Rating	Tags	Accepted	Time	✓
B	Chtholly's request	1300	brute-force	7,549	1m 7s	✓

Practice › Codeforces Solutions › Codeforces Round 449 (Div. 2) ›

CF 897B - Chtholly's request

We are asked to list special numbers in increasing order and take a prefix sum. A number is considered valid if it reads the same forward and backward in decimal notation and its length is even.