AlgorithmVisualizer/algorithm/sorting/comb/basic/code.js at gh-pages · rbds/AlgorithmVisualizer · GitHub

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logger._print('original array = [' + D.join(', ') + ']');

var N = D.length;

var swapped;

var gap = N; // initialize gap size

var shrink = 1.3; // set the gap shrink factor

do{

// update the gap value for the next comb.

gap = Math.floor( gap/shrink );

if( gap < 1 ){

// minimum gap is 1

gap = 1;

}

swapped = false; // initialize swapped

// a single comb over the input list

for( var i=0; i+gap < N; i++ ){

tracer._select(i)._select(i+gap)._wait();

if( D[i] > D[i+gap] ){

logger._print('swap ' + D[i] + ' and ' + D[i+gap]); // log swap event

var temp = D[i];

D[i] = D[i+gap];

D[i+gap] = temp;

tracer._notify(i, D[i])._notify(i+gap, D[i+gap])._wait();

tracer._denotify(i)._denotify(i+gap);

swapped = true; // Flag swapped has happened and list is not guaranteed sorted

}

tracer._deselect(i)._deselect(i+gap);

} // End of combing

} while( gap!=1 || swapped )

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