Fly_Eason的博客

#include #include using namespace std; int column[20]; // int rup[20]; int lup[20]; int ans[11]; int num=0; int N; void backtrack(int i); //定义一种方法 其实是回溯法 int main() { int i=0; for (int j=1

A ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of numbers in two adjacent circles should be a prime.Note: the number of fi...

static int n; static int m; static char str[][] = new char[101][101]; static int count; public static void main(String[] args) { Scanner cin = new Scanner(System.in); while(cin.hasNextInt()){ ...