Time complexity of parsing algorithms -


i want write c++ program parse input file of following form.

input $input1, $in2, $anotherinput, $a, $b, $x; output $out1, $out2, $k; $xyz = $a + $b + $x; $k = $xyz - $in2; ........ ........ ....... $out1 = $k + $b;

input file can have more 10,000 lines. of lines of form $a = $b + $c. efficient parsing algorithm used in terms of time complexity.

go simplest algorithm. suggest recursive descent prasing.


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