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Here we will see one problem, where we take a number n, we have to find another value say x, such that x + digit sum of x is same as the given number n. Suppose the value of n is 21. This program will return a number x = 15, as 15 + digit sum of 15, i.e. 15 + 1 + 5 = 21 = n.To solve this problem, we have to follow simple approach. We will iterate through 1 to n, in each iteration, we will see if the sum of the number and its digit sum ... Read More
Here we will see how to find fixed point in a given array. In array one element will be denoted as fixed point if the value is same as its index. This program will return the value if any, otherwise return -1. The array can hold negative numbers also. And the data elements are sorted. Here duplicate elements are allowed in the array.Here we will use binary search approach to solve this problem in O(log n) time. But we need some modification, if the normal binary search is used, then it may fail for duplicate elements. To check left, we ... Read More
Here we will see how to find fixed point in a given array. In array one element will be denoted as fixed point if the value is same as its index. This program will return the value if any, otherwise return -1. The array can hold negative numbers also. And the data elements are sorted.Here we will use binary search approach to solve this problem in O(log n) time. At first we will check whether the middle element is fixed point or not, if yes, then return it, if not, then there will be two situations, if the index of ... Read More
The HTML DOM MouseEvent screenX property returns the horizontal (x) coordinate of the mouse pointer relative to the users screen display if a mouse event was triggered. Use with screenY to get the vertical coordinate as well.Following is the syntax −Returning reference to the screenX objectMouseEventObject.screenXLet us see an example of MouseEvent screenX property −Example Live Demo MouseEvent screenX * { padding: 2px; margin:5px; } form { width:70%; margin: 0 auto; text-align: center; } #outer { ... Read More
Here we will see one interesting problem, we will find a pair (x, y), where x and y are in range so l
Suppose we have a set of commands as a string, the string will have four different letters for four directions. U for up, D for down, L for left and R for right. We also have initial cell position (x, y). Find the final cell position of the object in the matrix after following the given commands. We will assume that the final cell position is present in the matrix. Suppose the command string is like “DDLRULL”, initial position is (3, 4). The final position is (1, 5).The approach is simple, count the number of up, down, left and right ... Read More
The HTML DOM MouseEvent relatedTarget property returns the corresponding element that triggered the respective mouseover or mouseout event.Following is the syntax −Returning reference to the relatedTarget objectMouseEventObject.relatedTargetLet us see an example of MouseEvent relatedTarget property −Example Live Demo MouseEvent relatedTarget * { padding: 2px; margin:5px; } form { width:70%; margin: 0 auto; text-align: center; } #outer { width:70%; margin: 0 auto; padding: 0; text-align: center; ... Read More
The HTML DOM MouseEvent pageY property returns the vertical (y) coordinate of the mouse pointer relative to the document if a mouse event was triggered. Use with pageX to get the horizontal coordinate as well.Following is the syntax −Returning reference to the pageY objectMouseEventObject.pageYLet us see an example of MouseEvent pageY property −Example Live Demo MouseEvent pageY * { padding: 2px; margin:5px; } form { width:70%; margin: 0 auto; text-align: center; } #outer { width:70%; ... Read More
The HTML DOM MouseEvent pageX property returns the horizontal (x) coordinate of the mouse pointer relative to the document if a mouse event was triggered. Use with pageY to get the vertical coordinate as well.Following is the syntax −Returning reference to the pageX objectMouseEventObject.pageXLet us see an example of MouseEvent pageX property −Example Live Demo MouseEvent pageX * { padding: 2px; margin:5px; } form { width:70%; margin: 0 auto; text-align: center; } #outer { width:70%; ... Read More
The HTML DOM MouseEvent offsetY property returns the vertical (y) coordinate of the mouse pointer relative to the target element if a mouse event was triggered. Use with offsetX to get the horizontal coordinate as well.Following is the syntax −Returning reference to the offsetY objectMouseEventObject.offsetYLet us see an example of MouseEvent offsetY property −Example Live Demo MouseEvent offsetY * { padding: 2px; margin:5px; } form { width:70%; margin: 0 auto; text-align: center; } #outer { ... Read More