you give integer array num integer kIn operation pick number array sum equal k remove arrayreturn maximum number operation perform array Example 1input num 1234 k 5output 2explanation start num 1234 Remove number 1 4 num 23 Remove number 2 3 num there pair sum 5 total 2 operationsexample 2input num 31343 k 6output 1explanation start num 31343 Remove 3s num 143there pair sum 6 total 1 operation Constraints1 numslength 1051 numsi 1091 k 109