pset4 cs50 反映错误

Question

此程序正确反映图像：

void reflect(int height, int width, RGBTRIPLE image[height][width])
{
    int wide=round(width/2);
    for(int i=0;i<height;i++){
        for (int j=0;j<=wide;j++){
            RGBTRIPLE k=image[i][j];
            image[i][j]=image[i][(width-j-1)];
            image[i][width-j]=k;
            
        }
    }
    return;
}

但是当我运行 check50 时，它给出了以下错误：

:( reflect correctly filters 1x2 image
    expected "0 0 255\n255 0...", not "0 0 255\n0 0 2..."
:( reflect correctly filters 1x3 image
    expected "0 0 255\n0 255...", not "0 0 255\n0 255..."
:) reflect correctly filters image that is its own mirror image
:( reflect correctly filters 3x3 image
    expected "70 80 90\n40 5...", not "70 80 90\n40 5..."
:( reflect correctly filters 4x4 image
    expected "100 110 120\n7...", not "100 110 120\n7..."
:( blur correctly filters middle pixel
    expected "127 140 149\n", not "120 140 150\n"

不知道是什么原因。

Answer 1

在此代码中：

RGBTRIPLE k=image[i][j];
image[i][j]=image[i][(width-j-1)];
image[i][width-j]=k;

image[i][width-j]是错误的；它不是刚刚加载的要与 image[i][j] 交换的像素。应该是 image[i][width-1-j].

pset4 cs50 反映错误

pset4 cs50 reflect eroor

c

cs50