c - 通过排序函数传递字符串数组

Question

我正在尝试在 C 编程中使用排序数组。我有三个数组，arr1、arr2、arr3，它们一起使用来实现:

arr1: arr2: arr3:

4534  97.5  m4W
4554  97.4  m5W
4574  97.6  m6W
3934  97.1  m1W
4054  97.2  m2W
4174  97.3  m3W

我想对这些数组进行排序，以便它们基于第一个数组按从小到大的顺序排列，arr1。

到目前为止，我有一个可以正确排序前两列的函数。但是，我不确定如何对第三列字符串进行排序。这是到目前为止我的代码:

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

void sortArray(float a[], float b[], char c[], int size){
    int i, swap;
    float temp1, temp2;
    char temp3;
    do{
        swap = 0;
        for (i = 0; i < size - 1; i++){//basic sorting for loop
            if (a[i]>a[i + 1]){
                swap = 1;
                temp1 = a[i];    //temporarily stores value of array cell
                temp2 = b[i];
                temp3 = c[i];
                a[i] = a[i + 1]; //swaps the cells
                b[i] = b[i + 1];
                c[i] = c[i + 1];
                a[i + 1] = temp1;//stores value in swapped cell
                b[i + 1] = temp2;
                c[i + 1] = temp3;
            }
        }
    } while (swap);

}

int main()
{
    float arr1[6] = { 4534, 4554, 4574, 3934, 4054, 4174 };
    float arr2[6] = { 97.5, 97.4, 97.6, 97.1, 97.2, 97.3 };
    char arr3[6][4] = { "m4w", "m5w", "m6w", "m1w", "m2w", "m3w" };

    printf("Arrays before sorting:\n");
    for (int i = 0; i != 6; i++)
    {
        printf("%f ", arr1[i]);
        printf("%f ", arr2[i]);
        printf("%s\n", arr3[i]);
    }

    sortArray(arr1, arr2, *arr3, 6); ///this is where the sorting function is used

    printf("\n\nArrays after sorting:\n");

    for (int i = 0; i != 6; i++)
    {
        printf("%f ", arr1[i]);
        printf("%f ", arr2[i]);
        printf("%s\n", arr3[i]);
    }


    system("pause");
    return 0;
}

这是输出:

Arrays before sorting:
4534.0  97.5    m4w
4554.0  97.4    m5w
4574.0  97.6    m6w
3934.0  97.1    m1w
4054.0  97.2    m2w
4174.0  97.3    m3w


Arrays after sorting:
3934.0  97.1
4054.0  97.2    4ww
4174.0  97.3    m6w
4534.0  97.5    m1w
4554.0  97.4    m2w
4574.0  97.6    m3w

显然第三列是错误的。我真的不确定如何将字符串数组传递到函数中，并让函数像对前两列那样对其进行排序。任何帮助将不胜感激

Answer 1

这将解决您的问题。更改函数定义参数和代码，如下所示。

void sortArray(float a[], float b[], char c[6][4], int size){
    int i, swap;
    float temp1, temp2;
    char temp3[4];
    int k = 0;
    do{
        swap = 0;
        for (i = 0; i < size - 1; i++){//basic sorting for loop
            if (a[i]>a[i + 1]){
                swap = 1;
                temp1 = a[i];    //temporarily stores value of array cell
                temp2 = b[i];
                for ( k=0; k < 4 ; k++ ) { //Copying the c[i] to temp
                   temp3[k] = c[i][k];
                }
                a[i] = a[i + 1]; //swaps the cells
                b[i] = b[i + 1];
                for ( k=0; k < 4 ; k++ ) { //Copying the c[i+1] to c[i]
                    c[i][k] = c[i+1][k];
                }
                a[i + 1] = temp1;//stores value in swapped cell
                b[i + 1] = temp2;
                for ( k=0; k< 4 ; k++ ) { //Copying the temp to c[i+1]
                   c[i+1][k] = (char)temp3[k];
                }
            }
        }
    } while (swap);
}

您可以在Sorting Multiple Arrays查看运行示例