摘要:
单词 advocate(倡导):To support or promote a particular view or action. augment(增加):To increase the extent or amount of something. undermine(破坏):To gradual 阅读全文
摘要:
题目链接 题目AC代码: #include <bits/stdc++.h> #define int long long using namespace std; const int N = 2e5 + 10; int m, p; struct Node { int l, r; int v; //区间 阅读全文
摘要:
欧拉函数: 在数论,对正整数n,欧拉函数是小于或等于n的正整数中与n互质的数的数目 int phi[1010]; void euler() { for(int i = 2; i <= 1000; i++) phi[i] = i; for(int i = 2; i <= 1000; i ++) { i 阅读全文