Let's consider a table consisting of n rows and n columns. The cell located at the intersection of i-th row and j-th column contains numberi × j. The rows and columns are numbered starting from 1. You are given a positive integer x. Your task is to c…
题目:click here 题意:看hint就懂了 分析:数论小题,在n0.5时间里求n的质因子数 #include <bits/stdc++.h> using namespace std; typedef long long ll; int n, x; ll ans; void solve() { ans = ; ; i*i<=x; i++ ) { if( i <= n ) { && x/i <= n ) { ; ; } } else break; } pr…
A. Multiplication Table Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/577/problem/A Description Let's consider a table consisting of n rows and n columns. The cell located at the intersection of i-th row and j-th column co…
链接: https://codeforces.com/contest/1220/problem/B 题意: Sasha grew up and went to first grade. To celebrate this event her mother bought her a multiplication table M with n rows and n columns such that Mij=ai⋅aj where a1,-,an is some sequence of positi…
D. Multiplication Table time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Bizon the Champion isn't just charming, he also is very smart. While some of us were learning the multiplication t…
二分法判断答案 D. Multiplication Table time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Bizon the Champion isn't just charming, he also is very smart. While some of us were learning the multiplicat…
D. Multiplication Table time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Bizon the Champion isn't just charming, he also is very smart. While some of us were learning the multiplication tabl…
Bizon the Champion isn't just charming, he also is very smart. While some of us were learning the multiplication table, Bizon the Champion had fun in his own manner. Bizon the Champion painted an n × m multiplication table, where the element on the i…
题目链接:Codeforces 417E Square Table 题目大意:给出n和m.要求给出一个矩阵,要求每一列每一行的元素的平方总和是一个平方数. 解题思路:构造.依照 a a a b a a a b a a a b c c c d 的方式取构造,然后a,b,c,d的值用随机生成数去枚举,只是我认为用暴力也是能够的. #include <cstdio> #include <cstring> #include <cmath> #include <cstdli…
D. Multiplication Table time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Bizon the Champion isn't just charming, he also is very smart. While some of us were learning the multiplication tabl…
Nearly every one have used the Multiplication Table. But could you find out the k-th smallest number quickly from the multiplication table? Given the height m and the length n of a m * n Multiplication Table, and a positive integer k, you need to ret…
Nearly every one have used the Multiplication Table. But could you find out the k-th smallest number quickly from the multiplication table? Given the height m and the length n of a m * nMultiplication Table, and a positive integer k, you need to retu…
Nearly every one have used the Multiplication Table. But could you find out the k-th smallest number quickly from the multiplication table? Given the height m and the length n of a m * n Multiplication Table, and a positive integer k, you need to ret…
题目:https://leetcode.com/problems/kth-smallest-number-in-multiplication-table/description/ 668. Kth Smallest Number in Multiplication Table Nearly every one have used the Multiplication Table. But could you find out the k-th smallest number quickly fr…
题目链接:https://codeforces.com/problemset/problem/1099/E You are given an $n×m$ table, consisting of characters «A», «G», «C», «T». Let's call a table nice, if every $2×2$ square contains all four distinct characters. Your task is to find a nice table (…
