https://vjudge.net/contest/68264#problem/R The Sultan of Nubia has no children, so she has decided that the country will be split into up to k separate parts on her death and each part will be inherited by whoever performs best at some test. It is po…
题目链接:Uva 167 思路分析:八皇后问题,采用回溯法解决问题. 代码如下: #include <iostream> #include <string.h> using namespace std; ; int A[MAX_N]; int M[MAX_N][MAX_N]; ; int is_safe( int row, int col ) { ; i < row; ++i ) { if ( A[i] == col ) return false; if ( A[i] + i…
这道题是典型的八皇后问题,刘汝佳书上有具体的解说. 代码的实现例如以下: #include <stdio.h> #include <string.h> #include <stdlib.h> int vis[100][100];//刚開始wrong的原因就是这里数组开小了,开了[8][8],以为可以.后来看到[cur-i+8]意识到可能数组开小了.改大之后AC. int a[8][8]; int C[10]; int max_,tot; void search_(int…
The decimal expansion of the fraction 1/33 is 0.03, where the 03 is used to indicate that the cycle 03 repeats indefinitely with no intervening digits. In fact, the decimal expansion of every rational number (fraction) has a repeating cycle as opposed…
Prime Words A prime number is a number that has only two divisors: itself and the number one. Examples of primenumbers are: 1, 2, 3, 5, 17, 101 and 10007.In this problem you should read a set of words, each word is composed only by letters in the ran…
