739 数组交换

#include <stdio.h>
int main()
{
    double arr[100];
    int i = 0;
    for (i = 0; i < 100; i++)
    {
        scanf("%lf", &arr[i]);
    }

    for (i = 0; i < 100; i++)
    {
        if (arr[i] - 10 < 1e-7)
            printf("A[%d] = %.1lf\n",i, arr[i]);
    }
    return 0;
}