VK Cup 2012 Round 2 (Unofficial Div. 2 Edition)

2 problems from VK Cup 2012 Round 2 (Unofficial Div. 2 Edition) (contest 169), difficulty 800-1100. 2/2 solutions verified against sample I/O.

2 items

VK Cup 2012 Round 2 (Unofficial Div. 2 Edition)

Div. 2 | 2 problems | 2/2 verified | Difficulty 800-1100 | 2m 57s

#	Problem	Rating	Tags	Accepted	Time	✓
A	Chores	800	sortings	8,179	1m 25s	✓
B	Replacing Digits	1100	greedy	3,723	1m 32s	✓

Practice › Codeforces Solutions › VK Cup 2012 Round 2 (Unofficial Div. 2 Edition) ›

CF 169A - Chores

We have a list of chore difficulties. Vasya must receive exactly b chores whose difficulty is at most x, while Petya must receive exactly a chores whose difficulty is strictly greater than x. The value x must be an integer. We need to count how many integers satisfy the split.

Practice › Codeforces Solutions › VK Cup 2012 Round 2 (Unofficial Div. 2 Edition) ›

CF 169B - Replacing Digits

We are given a decimal number as a string and another string containing extra digits that we may use for replacements. Every digit from the second string can be used at most once. For each chosen digit, we may replace any single position in the original number.