12-08 about bubbling sort and array

I. Integral type array: int numsarray[]

Floating-point array: float scorearray[]

Array of strings: numsarray[]

When defining an array, you must be able to determine the number of elements in the array.

Two. Define an array with 5 elements, the default value of each element = 0;

1?? int numsarray[5];(5*4=20 memory space)

There are 5 elements in the array, each of which is an integral type.

2?? int numsarray[]={1,2,3,4};(4*4=16 memory space)

Defines an array with four elements, followed by 1,2,3,4

3?? int numsarray[5]={1,2};(5*4=20 memory space)

Defines an array that has 5 elements, the first is 1, the second bit 2, and the default is 0.

Three. Accessing array functions

The index value starts at 0, for example:

The int numsarray[0]//corresponds to the index value starting with 0, the first element within the array.

Array: Used to store multiple data of the same type

Four. Set the seed of random number in C language

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

int main () {

Srand ((unsigned int) time (NULL));

for (int i = 0;i<5;i++) {

printf ("%d", rand ()%9+1);

}

printf ("\ n");

return 0;

}

Five. Bubble sort

int temp;

for (int i = 0;i <4;i + +) {

for (Int J =4-1-1;j >=i; J--) {

if (Array[j] > array[j+1]) {

temp = array[j+1];

ARRAY[J] = array[j+1];

ARRAY[J+1] = temp;

}

}

}

12-08 about bubbling sort and array