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Articles on Trending Technologies
Technical articles with clear explanations and examples
C/C++ Function Call Puzzle?
This C/C++ function call puzzle explores the different behavior of function calling between C and C++ programming languages. The key difference lies in how each language handles function parameters and argument passing. When a function is declared without parameters, C and C++ treat it differently. Let's examine this behavior with a practical example. Syntax return_type function_name(); // Function declaration without parameters Example The following code demonstrates the different behavior when calling a function with arguments that was declared without parameters − #include void method() { ...
Read MoreSet the color of the four borders using CSS
The CSS border-color property is used to set the color of the four borders of an element. You can specify different colors for each border or apply a single color to all borders. Syntax selector { border-color: value; } Possible Values ValueDescription color-nameSpecifies a color by name (e.g., red, blue) hex-valueSpecifies a color using hexadecimal notation (e.g., #FF0000) rgb-valueSpecifies a color using RGB values transparentSets the border color to transparent Example: Four Different Border Colors The following example sets different colors for each of the four ...
Read MoreC program to check if a given string is Keyword or not?
In C programming, a keyword is a predefined or reserved word that has a fixed meaning and is used to perform specific operations. The C language has 32 keywords that cannot be used as variable names or identifiers. Syntax int strcmp(const char *str1, const char *str2); We can check if a string is a keyword by comparing it with all C keywords using the strcmp() function. C Keywords The following table lists all 32 keywords in the C programming language − ...
Read MoreSet the width of the left border using CSS
The CSS border-left-width property is used to set the width of the left border of an element. This property only works when the border-left-style or border-style is defined. Syntax selector { border-left-width: value; } Possible Values ValueDescription thinDefines a thin left border mediumDefines a medium left border (default) thickDefines a thick left border lengthDefines the width in px, em, rem, etc. Example The following example demonstrates how to set different widths for the left border − ...
Read MoreSum of the series 1.2.3 + 2.3.+ ... + n(n+1)(n+2) in C
Find the sum up to n terms of the series: 1.2.3 + 2.3.4 + ... + n(n+1)(n+2). In this series, 1.2.3 represents the first term and 2.3.4 represents the second term. Let's see an example to understand the concept better − Input: n = 5 Output: 420 Explanation 1.2.3 + 2.3.4 + 3.4.5 + 4.5.6 + 5.6.7 = 6 + 24 + 60 + 120 + 210 = 420 The nth term = n(n+1)(n+2); where n = 1, 2, 3, ... Expanding: n(n+1)(n+2) = n(n² + 3n + 2) = n³ + ...
Read MoreSet the style of the bottom border using CSS
The CSS border-bottom-style property is used to set the style of the bottom border of an element. You can create various visual effects like dotted, dashed, solid, and other border styles. Syntax selector { border-bottom-style: value; } Possible Values ValueDescription noneNo border (default) solidA solid line border dottedA series of dots dashedA series of dashes doubleTwo solid lines insetBorder appears embedded outsetBorder appears raised Example The following example demonstrates different bottom border styles − p { ...
Read MoreBetrothed numbers in C?
Betrothed numbers are pairs of numbers where the sum of proper divisors of each number equals the other number plus one. In mathematical terms, for numbers (a, b) to be betrothed: s(a) = b + 1 and s(b) = a + 1, where s(n) represents the sum of proper divisors of n (divisors excluding the number itself). The first few pairs of betrothed numbers are: (48, 75), (140, 195), (1050, 1925), (1575, 1648), (2024, 2295), (5775, 6128). All known pairs have opposite parity − one number is even and the other is odd. Syntax int sumOfProperDivisors(int ...
Read MoreShow the background image only once with CSS
Use the background-repeat property to display the background image only once. By default, background images repeat to fill the entire element, but you can control this behavior with the background-repeat property. Syntax selector { background-repeat: value; } Possible Values ValueDescription no-repeatBackground image displays only once repeatBackground image repeats both horizontally and vertically (default) repeat-xBackground image repeats only horizontally repeat-yBackground image repeats only vertically Example The following code shows how to display a background image only once using background-repeat: no-repeat − ...
Read MoreRole of CSS :nth-last-of-type(n) Selector
The CSS :nth-last-of-type(n) selector targets elements based on their position among siblings of the same type, counting from the last element backwards. It's particularly useful for styling specific elements without adding classes or IDs. Syntax :nth-last-of-type(n) { /* CSS properties */ } Possible Values ValueDescription numberSelects the nth element from the end (1, 2, 3, etc.) evenSelects even-positioned elements from the end oddSelects odd-positioned elements from the end formulaUses expressions like 2n+1, 3n, etc. Example: Selecting Second Last Element The following example selects the second last ...
Read MoreArray elements that appear more than once in C?
An array is a container of elements of the same data type. Elements can appear in any order and frequency within an array. In this article, we will learn how to find elements that appear more than once in an array. Syntax for (i = 0; i < n; i++) { count = 0; for (j = 0; j < n; j++) { if (arr[i] == arr[j]) { count++; ...
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