Calculate the sum of even numbers from 0 to n with a C number

I only know Pascal, not C, but I can tell you the idea: use a loop statement to retrieve 0 to n, if divide by 2 to get the remainder (mod) the result is 0 then it is an even number, if it is an even number, assign it to another variable s, if not, repeat the previous cycle.

The expression in pascal is approximately:

program qiuhe;

vari,n,s:integer;

beginreadln(n);

for i:=0 to n do

beginif i mod 2:=o thens:=s+i

elses:=s+0;

end;writeln('s=',s);

Forgot the c syntax. Simple ideas tell you.

for(i=0,i=i+2,ihe. I guess I understand.

For an arbitrary number, 1, first to judge the relationship with 0, 2, to judge whether n is to be forced into an integer, this is very important, otherwise, there will be an error, the above brothers did not consider it, right?

3. The idea is as above, very simple.

Summary. Hello dear! We're glad to help you with your questions!

There are 50 even numbers c plus plus programming from one to n as follows: according to the continuous characteristics of even numbers and odd numbers, use a for loop, omit the even number judgment, and directly start from the maximum even number less than or equal to n minus 2 and add it to 2. Hope I am helpful to you.

Hello dear! We're glad to help you with your questions! Finding one to n has 50 even numbers c plus plus programming is written as follows:

According to the continuous characteristics of even numbers and odd numbers, use a for loop, omit the judgment of even numbers, and start from the most blind large even number less than or equal to n minus 2 and add it to 2. I hope I am helpful to you.

Programming is the Chinese abbreviation of programming track training sequence, which is the process of letting the computer ** solve a certain problem, prescribing a certain calculation method for a certain computing system, making the computing system run according to the calculation method, and finally get the corresponding results. In order for a computer to understand human intentions, humans must be able to understand the ideas, methods, and means of solving the problem through the computer.

Here's how to program even numbers in C:

#include

main()

int i,sum=0;

for(i=0;i<=100;i=i+2)sum=sum+i;

printf("%d",sum);

C is a general-purpose computer programming language with a wide range of applications. C is designed to provide a programming language that can compile in a simple way, handle low-level memory, generate a small amount of machine code, and run without any runtime support.

Although C provides many low-level processing functions, it still maintains a good cross-platform characteristic, and C programs written in a standard specification can be compiled on many computer platforms, including some embedded processors (microcontrollers or MCUs) and supercomputers.

In the eighties of the twentieth century, in order to avoid the differences in the C language grammar used by various developers, the National Bureau of Standards of the United States developed a complete set of international standard grammar for the C language, called ANSI C, as the original standard of the C language.