3 ms·Guessing it should be M = max_{1≤i<j≤n} ai+aj or some other function M = max_{1≤i<j≤n} f(ai,aj).by kelipso 1y agoGuessing it should be M = max_{1≤i<j≤n} ai+aj or some other function M = max_{1≤i<j≤n} f(ai,aj).