随笔分类 - dfs之剪枝与优化
摘要:https://www.acwing.com/problem/content/169/ #include <cstring> #include <iostream> #include <algorithm> using namespace std; const int N = 70; int n;
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摘要:https://www.acwing.com/problem/content/168/ #include <algorithm> #include <iostream> using namespace std; const int N = 9; // 0- 511 // ones[i] 表示i这个数
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摘要:https://www.acwing.com/problem/content/167/ #include <cstring> #include <iostream> #include <algorithm> using namespace std; const int N = 20; int n,
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