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Source Code
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#include<stdio.h>
void printA(int a[5][3]);
void printViaB(int a[5][3], int b[5]);
void sortBub(int a[5][3], int b[5]);
int main()
{
int a[5][3] = {{8, 4, 1},{8, 3, 2},{2, 4, 3},{6, 1, 4},{1, 5, 5}};
int b[5] = {0, 1, 2, 3, 4};
printA(a);
printf("after sorting...\n");
sortBub(a, b);
printViaB(a, b);
printA(a);
return 0;
}
void printViaB(int a[5][3], int b[5])
{
printf("print Via b:\n");
int i, j;
for (i = 0; i < 5; i++)
{
for (j = 0; j < 3; j++)
{
printf("%5d", a[b[i]][j]);
}
printf("\n");
}
printf("\n");
}
void printA(int a[5][3])
{
printf("print directly\n");
int i, j;
for (i = 0; i < 5; i++)
{
for (j = 0; j < 3; j++)
{
printf("%5d", a[i][j]);
}
printf("\n");
}
printf("\n");
}
void sortBub(int a[5][3], int b[5])
{
int pass, i;
for (pass = 0; pass < 5 - 1; pass++)
{
for (i = 0; i < 5 - pass - 1; i++)
{
// 按第0个元素比较大小
if (a[b[i]][0] > a[b[i + 1]][0])
{
// swap(a[i], a[i + 1]);
// 原本需要交换两个一维数组
// 现在只需要交换索引数组元素即可
int temp = b[i];
b[i] = b[i + 1];
b[i + 1] = temp;
}
}
}
}
Compiling Program...
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