A set contains numbers from 1-100. What is the least non-negative value that one can form by putting a + or - in front of each number, and summing the values?
there are a few general summation formulas which I know...
The Attempt at a Solution
The problem that I am facing is the purpose:
by adding a + or - in front of each number
Is the question asking me to perform an alternating series? +, -, +, -, +, -
or solely one for 1+2+3+4+5.... and one for 1-2+3-4+5.....
Please give me some guidance... thanks