Petya started to attend programming lessons.On the first lesson his task was to write a simple program. The program was supposed to do the following: in the given string, consisting if uppercase and ...
It is very important to notice "For every i (1≤i≤n) you must swap (i.e. exchange) ci with either ai or bi" , you must swap for every i brings a big difference in finding our answer. It tells us that ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback