百度试题 结果1 题目int a[10]={1,2,3,4};If an integer occupies 4 bytes, then the number of bytes occupied by array a is ( ) A. 16 B. 20 C. 40 D. uncertain 相关知识点: 试题来源: 解析 C 反馈 收藏
Int occupies 4 bytes of memory. We chose Int for our array to save memory, as the values were within its range. 11 Long It’s essential for values exceeding the range of Int. The database ID values are stored as Long due to their large size. 11 Int It’s the go-to type for int...
There's no long float, but there is adoubletype that is twice as big as float. Float: Occupies 4 bytes. Range 17x10-38to 1.7x1038 Double: Occupies 8 bytes. Range 3.4x10-308to 3.4308 Unless you're doing scientific programming with very large or small numbers, you'll only use doubles ...
In the first case, a itself occupies sizeof(int *) bytes of automatic storage, and that points to 10 * sizeof(int) bytes of dynamic storage. In the latter case, b occupies 10 * sizeof(int) bytes of automatic storage. Because b is an array, there is no pointer. So the first case...
For the array size of 10000x10000, each row occupies 80000 bytes == 78.125KiB, and the two arrays occupy a total of 1.49 GiB. Each core's L1 cache can only hold part of a row, while each core's private L2 cache can hold 524288/80000 = 6.5 rows. Using four threads per core in ...