Find the required pair
for ( let i = 0 ; i < p ; i ++ ) { for ( let j = i + 1 ; j < p ; j ++ ) { if ( arr [ i ] + arr [ j ] < k && arr [ i ] + arr [ j ] > maxsum ) { maxsum = arr [ i ] + arr [ j ] ; a = arr [ i ] ; b = arr [ j ] ; } } }