package testpacknm; import java.util.Scanner; public class testcnm { public static void main(String[] args) { , y = ; ; ; i <= x; i += y) { res++; } System.out.println("The product of " + x + " and " + y + " is " + res); }…

问题描述:求商,不能用乘法,除法,取模运算. 算法思路:不能用除法,那只能用减法,但是用减法,超时.可以用位移运算,每次除数左移,相当于2倍. public class DividTwoIntegers { public int divide(int dividend, int divisor) { if(divisor == 0) return Integer.MAX_VALUE; if(divisor == -1 && dividend == Integer.MIN_VALUE) re…

public class Solution { public static void main(String[] args) { , y = ; ; ; i <= y; i++) res = i * x; System.out.println("The product of " + x + " and " + y + " is " + res); } } OUTPUT: The product of and…

it can be solved by Dynamical Programming.Here are some useful link: Tutorial and Code: http://www.cs.cornell.edu/~wdtseng/icpc/notes/dp3.pdfA practice: http://people.csail.mit.edu/bdean/6.046/dp/ (then click Balanced Partition) What's more, please n…

Codeforces Round #268 (Div. 2)D Codeforces Round #268 (Div. 1)B CF468B D. Two Sets time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Little X has n distinct integers: p1, p2, ..., pn. He want…

题目描述: Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1's in their binary representation and return them as an array. Example:For num = 5 you should return [0,1,1,2,1,2]. Follow up: It is…

Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1's in their binary representation and return them as an array. Example: For num = 5 you should return [0,1,1,2,1,2]. Follow up: It is very…

Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1's in their binary representation and return them as an array. Example: For num = 5 you should return [0,1,1,2,1,2]. Follow up: It is very…

B. Two Sets Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/468/problem/B Description Little X has n distinct integers: p1, p2, ..., pn. He wants to divide all of them into two sets A and B. The following two conditions must…

You have written on a piece of paper an array of n positive integers a[1], a[2], ..., a[n] and m good pairs of integers (i1, j1), (i2, j2), ..., (im, jm). Each good pair (ik, jk) meets the following conditions: ik + jk is an odd number and 1 ≤ ik < j…