摘要：
Robbery Inspector Robstop is very angry. Last night, a bank has been robbed and the robber has not been caught. And this happened already for the thir 阅读全文
摘要：
Pairs of Integers You are to find all pairs of integers such that their sum is equal to the given integer number N and the second number results from 阅读全文
摘要：
Watering Grass n sprinklers are installed in a horizontal strip of grass l meters long and w meters wide. Each sprinkler is installed at the horizonta 阅读全文
摘要：
Discrete Function There is a discrete function. It is specified for integer arguments from 1 to N (2 ≤ N ≤ 100000). Each value of the function is long 阅读全文
摘要：
Conductors Background Everyone making translations from English to Russian knows an English phrase "Naked conductor runs along the bus". It has two ve 阅读全文