http://codeforces.me/contest/445/problem/C
can any one explain the problem and the answer for me ? the tutorial and the problem statement are so mysterious for me thanks in advance.
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A similar but quite easy question :
Q : Find the maximum average subset/sub-array of a given array ? Ans : Maximum Number in Array.
445C - DZY Loves Physics is just a graphical version of this question. But for 1 node,ans is defined to be 0 instead of oo. Hence you pick 2 nodes for which (x[a[i]] + x[b[i]]) / c[i] is maximum