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In this problem, we are given three integer value K, N, M. our task is to place K knights in an NxM chessboard such that no two knights attack each other. There can be cases with 0 valid ways and also cases with multiple valid ways. You need to print all valid cases.Knight is a chess piece that moves two moves ahead and then one move to the left of right. It can move in any direction in the chessboard.Attack is the position when one piece can be in the same place as other pieces in one chance of its ... Read More
In this problem, we are given an integer value N. our task is to print numbers within the range (1, N2) in a 2D matrix of size NxN in such a way that the sum elements of each row are equal.Let’s take an example to understand the problem, Input − N = 4Output −1 6 11 16 2 7 12 13 3 8 9 14 4 5 10 15Sum of elements in each row is 34To solve this method, we need to place each element in the matrix in such a way that the total in each row is equal. ... Read More
In this article we will be discussing the working, syntax and examples of quick_exit() function in C++ STL.What is quick_exit()?quick_exit() function is an inbuilt function in C++ STL, which is defined in the header file. quick_exit() function is used to quickly terminate the calling process means it terminates the process without cleaning of its resources.This function is used for normal termination and no additional cleanup tasks are being performed like, no object destructors are called, whereas the C streams are closed or flushed, the files which are opened with tmpfile are being removed.When we terminate a process using quick_exit() ... Read More
In this article we will be discussing the working, syntax and examples of putwchar() function in C++ STL.What is putwchar()?putwchar() function is an inbuilt function in C++ STL, which is defined in the header file. putwchar() function is used to write the wide character on the standard output device. This function takes the wide character from the arguments and writes it on the stdout or standard output of the system.This function is a wide character version of putchar() which is defined in the header file.Syntaxputwchar( wchar_t widec );ParametersThe function accepts following parameter(s) −widec − The wide character which ... Read More
In this article we will be discussing the working, syntax and examples of std::mbrtoc32() function in C++ STL.What is std::mbrtoc32()?std::mbrtoc32() function is an inbuilt function in C++ STL, which is defined in header file. This function is used to convert a narrow multibyte character to UTF-32-character representation.If the associated character pointer is not null, and all other parameters are also accepted then it will convert the corresponding 32-bit character.Syntaxsize_t mbrtoc32( char32_t* pc32, char* str, size_t n, mbstate_t* ps);ParametersThe function accepts following parameter(s) −pc32 − This is the pointer to the location we want the output to be stored.str − ... Read More
In this article we will be discussing the working, syntax and examples of std::mbrtoc16() function in C++ STL.What is std::mbrtoc16()?std::mbrtoc16() function is an inbuilt function in C++ STL, which is defined in header file. This function is used to convert a narrow multibyte character to UTF-16-character representation.If the associated character pointer is not null, and all other parameters are also accepted then it will convert the corresponding 16-bit character.Syntaxsize_t mbrtoc16( char16_t* pc16, char* str, size_t n, mbstate_t* ps);ParametersThe function accepts following parameter(s) −pc16 − This is the pointer to the location we want the output to be stored.str − ... Read More
In this article we will be discussing the working, syntax and examples of std::mbsrtowcs() function in C++ STL.What is std::mbsrtowcs()?std::mbsrtowcs() function is an inbuilt function in C++ STL, which is defined in the header file. mbsrtowcs() means that it converts the null terminated multibyte character string whose first byte is *src to its wide character representation. This function returns the value according to the conversion.Syntaxsize_t mbsrtowcs( wchar_t* pwc, char** str, size_t n, mbstate_t* ps);ParametersThe function accepts following parameter(s) −pwc − This is the pointer to the location we want the output to be stored.str − Character string which is ... Read More
In this article we will be discussing the working, syntax and examples of memcpy() function in C++ STL.What is memcpy()?memcpy() function is an inbuilt function in C++ STL, which is defined in header file. memcpy() function is used to copy blocks of memory. This function is used to copy the number of values from one memory location to another.The result of the function is a binary copy of the data. This function doesn’t check for any terminating source or any terminating null character, it just copies the num bytes from the source.Examplevoid memcpy( void* destination, void* source, size_t num);ParametersThe ... Read More
In this article we will be discussing the working, syntax and examples of mktime() function in C++ STL.What is mktime()?mktime() function is an inbuilt function in C++ STL, which is defined in the header file. mktime() function is used to convert the local time to and object time_t.This function is like the reverse of the function localtime(), which converts an input to the local timezone of the machine.This function automatically modifies the values of the member timeptr if they are off the range or there is tm_day and tm_yday which are not allowed.Syntaxtime_t mktime( struct tm* tptr );ParametersThe function ... Read More
VarHandle is a reference to a variable, and it provides access to variables under various access modes (such as plain read/write, volatile read/write, and compare-and-swap), similar to the functionality provided by java.util.concurrent.atomic and sun.misc.Unsafe. The variables can be array elements, instance or static fields in a class.In the below example, we can create a static variable handle.Exampleimport java.lang.invoke.MethodHandles; import java.lang.invoke.VarHandle; public class StaticVarHandleTest { static int field; static int[] array = new int[20]; static final VarHandle FIELD, ARRAY; static { try { ... Read More