http://codeforces.com/contest/472/problem/C
i dont understand the second test case. whatever handle we choose, the order will always be 2 3 1, the how the answer for 3 1 2 can be yes?
http://codeforces.com/contest/472/problem/C
i dont understand the second test case. whatever handle we choose, the order will always be 2 3 1, the how the answer for 3 1 2 can be yes?
It is possible to write five as a sum in exactly six different ways:
4 + 1 3 + 2 3 + 1 + 1 2 + 2 + 1 2 + 1 + 1 + 1 1 + 1 + 1 + 1 + 1
How many different ways can one hundred be written as a sum of at least two positive integers?
i am looking for a top-down recursive solution. thanx.
i want to solve this problem with DP http://codeforces.com/contest/180/problem/C there is no editorial for it. thanks for helping. i already soled it other way.