Chinese to English Urgent, urgent, serial number, respectively: 1 2 3 4 5 1 2 3 A total of

Format - Item Picking, Yarding, Lingmu, Chunqi, Symbol, Mold, Empty and Numbering, Multi-level Symbol.

Defines an int (integer) of length 5 array a (a is the name of the array), where the corresponding values for each element are 1, 2, 3, 4, 5 (i.e. a[0]=1, a[1]=2, a[2]=3, a[3]=4, a[4]=5).

If int a[5] = {1,2,3,4,5} (note the parentheses), it means an array a[0]=1,a[1]=2,a[2]=3,a[3]=4,a[4]=5

If int a[5] = (1,2,3,4,5) (parentheses), the definition will result in an error

Define the array[5] where the 5 represents 5 numbers, int says that the content of this array is an integer, (1,2,3,4,5) where 1 to 5 are integers!

should be int a[5] =;

Meaning: Initialize a[0] a[4] to 1, 2, 3, 4, 5

This sentence cannot initialize the array in the C language, the compilation will not pass, and the initialization of the array has the following way:

int a[5] = ;An array of 5 members corresponds to exactly 5 values;

int a[5] = ;The compiler assigns a value to the order of the array, and the subsequent complement is zero;

int a = ;The unwritten size of the array is determined by the subsequent assignment, where the compiler will default to the array size of 5;

int a[5] = ;This is the case if you want to define an all-zero array, but the size of the array must be specified explicitly.

Loops (such as for statements) are assigned one by one, which is a stupid way not to say;

Written incorrectly, it should be curly braces.

(2) 5 8 The total number of 4 2 = 16 is 1 + 4, 2 + 3, 2 + 4, 3 + 2, 3 + 3, 3 + 4, 4 + 1, 4 + 2, 4 + 3, 4 + 4, 10 kinds.

(x&1==1)?1:0

where x&1 is to determine whether x is odd or even, if x is odd then the value of x&1 is 1, if x is even then x&1=0; == is to judge when x&1=1, (x&1==1) is correct, the following question mark means that if the front is correct, the value is 1, if it is wrong, the value is 0, when x=1, x is an odd number, so x&1=1 This judgment is correct, so the whole value is 1, when x=2, x&1=0 is not equal to 1, wrong, the value of this formula is taken from the following 0

So the result is 1,0,1,0

1，0，1，0

The expression performs bitwise operations, & is bitwise sum, and x&1 performs binary sums of x,1.

The operation when x is given 1.

00000001

And so on, I hope that lz will see the content of the subordinate operation by himself.

This question, I would like if you.

Learn about conditional operators.

And bitwise and arithmetic, you can do it. You can take a look at Tan Haoqiang c programming and I think you'll know.

This is equivalent to passing bits and operations. Determine if a number is even.

Translation: 1 thanks thank you.

2 play together.

3 Next Tuesday.

4 Clean the classroom.

1thank you 2play together 3 next Tuesday 4 clean the classroom.