摘要:
二维树状数组用于求子矩阵的和。View Code 1 /* 2 Author:Zhaofa Fang 3 Lang:C++ 4 */ 5 #include <cstdio> 6 #include <cstdlib> 7 #include <iostream> 8 #include <cmath> 9 #include <cstring>10 #include <algorithm>11 #include <string>12 #include <utility>13 #include <vec 阅读全文