Codeforces 955C Sad powers 题意 q组询问,每次询问给定L,R,求[L,R]区间内有多少个数可以写成ap的形式,其中a>0,p>1,1 ≤ L ≤ R ≤ 1e18. 思路 对于p>2的情况,由于随着指数p的增大,小于1e18的p次幂的数量会急剧减小,总数量的级别在1e6多左右,因此可预处理.L,R不超过1e18,可以直接枚举数字1-1e6,将每个数字不超过1e18的且不是平方数的p次幂推入数组中,排序去重.以便回答询问时可二分求数量. 对于p=2的情况,对上界…
You're given Q queries of the form (L, R). For each query you have to find the number of such x that L ≤ x ≤ R and there exist integer numbers a > 0, p > 1 such that x = ap. Input The first line contains the number of queries Q (1 ≤ Q ≤ 105). The ne…
C. Sad powerstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou're given Q queries of the form (L, R). For each query you have to find the number of such x that L ≤ x ≤ R and there exist integer…
Don't make a promise when you are in Joy. Don't reply when you are Sad.Don't take decisions when you are Angry.Think Twice.Act Wise. 当你喜悦时,不要轻易地承诺.当你悲伤时,不要轻易地回复.当你愤怒时,不要轻易做出决定.三思而后行,明智之法.…
#include <opencv2/opencv.hpp>#include <opencv2/core/core.hpp>#include <opencv2/highgui/highgui.hpp>#include <iostream>using namespace std;using namespace cv;const int w = 384;const int h = 288;const int n = 3;void SAD(uchar* Limg,…