initial

.gitignore

+.idea/
\ No newline at end of file

app.js

+var start = new Date();
+var stop = new Date(start.getTime() + 30 * 24 * 3600 * 1000);
+console.log(stop);
+
+function cyclicInterval(from, until, interval) {
+  var resultArray = [];
+
+  for(var offset = 0; until.getTime() + offset < stop.getTime(); offset += interval) {
+    resultArray.push([new Date(from.getTime() + offset), new Date(until.getTime() + offset)]);
+  }
+  return resultArray;
+}
+
+function orOperator(intervals) {
+  var result = [];
+  for(var i = 0; i < intervals.length; i++) {
+    result = result.concat(intervals[i]);
+  }
+  result.sort(function(a, b) {
+    return a[0] - b[0];
+  });
+  return result;
+}
+
+function removeOverlaps(interval) {
+  var i = 0;
+  while(i < interval.length - 1) {
+    var endFirst = interval[i][1];
+    var startSecond = interval[i + 1][0];
+    var endSecond = interval[i + 1][1];
+    if(endFirst > startSecond) {
+      interval.splice(i + 1, 1);
+      interval[i][1] = endSecond;
+    }
+    else i++;
+  }
+  return interval;
+}
+
+function andOperator(interval1, interval2) {
+  var i = 0;
+  var j = 0;
+  while(i < interval1.length && j < interval2.length) {
+
+  }
+}
+
+
+var a = cyclicInterval(new Date(2014, 5, 23, 9), new Date(2014, 5, 23, 14), 7 * 24 * 3600 * 1000);
+var b = cyclicInterval(new Date(2014, 5, 23, 13), new Date(2014, 5, 23, 18), 7 * 24 * 3600 * 1000);
+
+var x = orOperator([a, b]);
+x = removeOverlaps(x);
+
+console.log(x);
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