Programmer Think

I. what are left and right values? Before mastering the right value reference, you must first know what the right value is. Since there is an right value, there must be an left value. When we assign a=b, the value that can be placed to the left of the = sign is the left value, and the reverse is the right value. So what value can be used as a ...

t1 fake coin poj1013 Idea: First of all, you should know that the subject already knows the weighing results, and each input is three groups of data, so define three character arrays to store three groups of data of the left balance, three groups of data of the right balance and three groups of data of the weighing results, and then define an ...

Joseph problem (array + queue + formula iteration + recursion) The Joseph Ring problem originates from a Jewish story: The Romans captured the bridge Tapat, and 41 people hid in a cave to escape the catastrophe. Among the 41 people, the historian Josephus (Joseph) and one of his friends. The remaining 39 people decided to commit collective sui ...

Source of original title: CodeForces 803A Title Description: You are given matrix with n rows and n columns filled with zeroes. You should put k ones in it in such a way that the resulting matrix is symmetrical with respect to the main diagonal (the diagonal that goes from the top left to the bottom right corner) and is lexicographical ...

Bit operation problem solution   Question source: 2018 CCPC Guilin station: D. Bits Reverse   Title Description     Topic meaning understanding input T T T groups of data, each group of data contains two integers ...

Matlab has great advantages in data analysis when processing images. Because other programming languages, such as C + +, are generally used when docking with enterprises, Matlab functions can be compiled into dll files and called in C + +. There will be many errors when using it for the first time, and many errors can not be modified by the pro ...

1. Right value reference C + + introduces R-value reference and mobile semantics, which can avoid unnecessary replication and improve program performance. (1) Left and right values All in C + + must belong to one of left value and right value. Lvalue: refers to the persistent object that still exists after the end of the expression. Rig ...

1, Arithmetic operator There are five arithmetic operators: + - * /%. Because the operator has two operands. Also known as binocular operator For the / operator, both operands are integers and perform integer division. Performs floating-point division when at least one operand is floating-point #include <stdio.h> int main() { int ...

1. Destructor cannot be overloaded Reason: the destructor cannot be overloaded because it can only have one and cannot take parameters. 2. Why is the destructor of the base class a virtual function? When implementing polymorphism, when the derived class is operated with the base class, the situation that only the base class is destructed ...

** introduction ** TCP/IP communication (i.e. SOCKET communication) is the communication established through TCP/IP protocol on the basis of following the four-tier architecture of ISO/OSI model by connecting the Server end of the Server and the Client end of the Client through the network cable. The controller can be set as Server or Client. ...