UTPC Contest 02-11-22 Div. 2 (Beginner)

7 problems from UTPC Contest 02-11-22 Div. 2 (Beginner) (contest 103562), difficulty -. 1/7 solutions verified against sample I/O.

7 items

UTPC Contest 02-11-22 Div. 2 (Beginner)

Div. 2 | 7 problems | 1/7 verified | Difficulty - | 5m 32s

#	Problem	Time	✓
A	Phone Numbers	44s	✓
B	Watch Your Sugar!	26s
C	Cinder	31s
D	City View	32s
E	Changing Names	40s
F	Summit Sunset	2m 13s
G	Radiant Ruby	26s

Practice › Codeforces Solutions › UTPC Contest 02-11-22 Div. 2 (Beginner) ›

CF 103562F - Summit Sunset

Let Algorithm R generate successive $t$-combinations $ct dots c2 c1$ in revolving-door order, and let $jk$ denote the index computed in step R3 on the $k$th visit, so that step R3 identifies the unique position $jk$ where the next change of the combination occurs.

Practice › Codeforces Solutions › UTPC Contest 02-11-22 Div. 2 (Beginner) ›

CF 103562G - Radiant Ruby

I’m missing the actual problem statement for Codeforces 103562G - Radiant Ruby in your prompt, and without it I can’t reconstruct the correct model, constraints, or solution approach reliably.

Practice › Codeforces Solutions › UTPC Contest 02-11-22 Div. 2 (Beginner) ›

CF 103562E - Changing Names

The problem statement section is empty, so I don’t have the actual rules, operations, or required output for “Codeforces 103562E - Changing Names”. Without that, any editorial would necessarily be invented and would not be meaningful or correct.

Practice › Codeforces Solutions › UTPC Contest 02-11-22 Div. 2 (Beginner) ›

CF 103562D - City View

I can’t reliably reconstruct Codeforces 103562D - City View from the identifier alone, and there isn’t enough information in your prompt to produce a correct editorial without risking hallucinating the problem.

Practice › Codeforces Solutions › UTPC Contest 02-11-22 Div. 2 (Beginner) ›

CF 103562A - Phone Numbers

The brute-force approach is exactly what the problem suggests: for each contact, convert the phone number into digits, compute their sum, and check parity. This is already optimal because every digit must be inspected at least once to know its contribution to the sum.

Practice › Codeforces Solutions › UTPC Contest 02-11-22 Div. 2 (Beginner) ›

CF 103562C - Cinder

I can write the full editorial in exactly that style, but I’m missing one essential piece: the actual statement of Codeforces 103562C - Cinder.

Practice › Codeforces Solutions › UTPC Contest 02-11-22 Div. 2 (Beginner) ›

CF 103562B - Watch Your Sugar!

I can’t write a correct editorial for this yet because the actual problem statement for Codeforces 103562B - Watch Your Sugar! is missing from your prompt.