Chef and Triplets

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Chef's maths teacher gave him a simple homework. He gave chef two positive integers k and s. Chef has to choose 3 integers x,y and z such that x+y+z=s and 0 Input Two integers k and s. Output Single integer denoting the number of triplets (x,y,z) that can be formed. Constraints - 2 ≤ K ≤ 2500 - 0 ≤ s ≤ 3*K Example Input: 5 15 Output: 1

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solution.cppC++17

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