五月流水账

5.2

手写堆

洛谷p3378

 1 #include <cstdio>
 2 #include <cstring>
 3 #include <iostream>
 4 #include <algorithm>
 5 using namespace std;
 6 const int maxn = 2e6 + 5;
 7 
 8 int heap[maxn],heap_size,n;
 9 
10 void put(int x)
11 {
12     int now,nxt;
13     heap[++heap_size] = x;
14     now = heap_size;
15     while (now > 1)
16     {
17         nxt = now >> 1;
18         if (heap[now] >= heap[nxt]) return;
19         swap(heap[now],heap[nxt]);
20         now = nxt;
21     }
22 }
23 
24 void del()
25 {
26     int now,nxt,res = heap[1];
27     heap[1] = heap[heap_size];heap_size--;
28     now = 1;
29     while (now*2 <= heap_size)
30     {
31         nxt = now * 2;
32         if (nxt <= heap_size && heap[nxt + 1] < heap[nxt]) nxt++;
33         if (heap[now] <= heap[nxt]) return;
34         swap(heap[now],heap[nxt]);
35         now = nxt;
36     }
37     return;
38 }
39 
40 int get() {return heap[1];}
41 
42 int main()
43 {
44     scanf("%d",&n);
45     int cmd,x;
46     heap_size = 0;
47     for (int i = 1;i <= n;i++)
48     {
49         scanf("%d",&cmd);
50         if (cmd == 1)
51         {
52             scanf("%d",&x);
53             put(x);
54         }
55         else if (cmd == 2) printf ("%d\n",get());
56         else del();
57     }
58     return 0;
59 }

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5.3

生活轨迹发生了变化qaqaq

5.4

又要凉了... 没有准备的凉好像总是比有准备的凉更难受一些 qaqaq

-------- 昏割线 -----

好的，面挂的锅甩给楼下肯德基捉急的wifi了

python中的join

通过dicom图像的tag来判断三维图像的方向

5.5

立夏咯

py处理dicom,简单的读入显示.. 发现python显示出来的图自带一点彩色效果，比matlab的好看qwq

 1 import numpy as np
 2 import pdb
 3 import dicom
 4 import os
 5 import scipy.ndimage
 6 import pylab
 7 from skimage import measure
 8 
 9 dcm = dicom.read_file('test.dcm')
10 print (dcm.dir("pat"))
11 
12 data_element = dcm.data_element("PatientsName")
13 print (data_element.VR,data_element.value)
14 
15 pixel_bytes = dcm.PixelData
16 
17 pix = dcm.pixel_array
18 print (pix)
19 
20 pylab.imshow(dcm.pixel_array,cmap = pylab.cm.bone)
21 pylab.show()

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5.6

EM算法与图像分割

EM算法看不懂数学qaqqaqaq

5.7

常见医疗图像处理

you only look once

5.8

处理过程中要用到求凸包...qaqaq原来这个也有现成的

凸包

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