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pip一次性安装多个包 pip install -r /Users/war/Downloads/requirements.txtrequirements.txt Requirements.txt absl-py==0.11.0 astor==0.8.1 astroid==1.5.3 backport 阅读全文
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#include "opencv2/imgcodecs.hpp" #include "opencv2/highgui.hpp" #include "opencv2/imgproc.hpp" #include <iostream> using namespace std; using namespac 阅读全文
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梯度是向量，每一维都是对应维度的偏导数 In multiple dimensions, the gradient is the vector of (partial derivatives) along each dimension 阅读全文
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#include <bits/stdc++.h> #include "opencv2/core.hpp" #include "opencv2/imgproc.hpp" #include "opencv2/video.hpp" #include "opencv2/objdetect.hpp" #inc 阅读全文
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operator 排序 pri 效果 > < greater 由大到小> > greater 由小到大< < less 由大到小< > less 由小到大 阅读全文
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#include<opencv2/core/core.hpp> #include<opencv2/imgproc/imgproc.hpp> #include<opencv2/highgui/highgui.hpp> #include<opencv2/opencv.hpp> #include<bits 阅读全文
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#include <bits/stdc++.h> #include "opencv2/core.hpp" #include "opencv2/imgproc.hpp" #include "opencv2/video.hpp" #include "opencv2/objdetect.hpp" #inc 阅读全文
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#include <bits/stdc++.h> #include "opencv2/core.hpp" #include "opencv2/imgproc.hpp" #include "opencv2/video.hpp" #include "opencv2/objdetect.hpp" #inc 阅读全文
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while True: try: x,a,y,b=map(int,input().split()) if x*b > y*a: print(">") elif x*b < y*a: print("<") else : print("=") except: break 阅读全文
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f[i][j][0/1/2]表示在区间[i,j]左侧加 0,1,2 个和i颜色相同的球，并把[i,j]区间的球全部消除掉的最小花费。 if(k<2) ans = min(ans, dp(l,r,k+1)+1);那么可以在左侧再加1个if(k==2) ans = min(ans, dp(l+1,r,0 阅读全文