摘要："A. Candies" 等比数列求和之后得到k和x的式子，枚举k即可，因为是幂函数，k并不会很大 代码 include include include include include include include include include include include include d 阅读全文

摘要："A. Ichihime and Triangle" 输出以a c c为三条边的等边三角形即可 代码 include include include include include include include include include include include define INF 阅读全文

摘要："A. Candies and Two Sisters" 签到题，直接输出即可 代码 include define INF 0x3f3f3f3f typedef long long ll; using namespace std; inline void read(int &p) { p=0;int 阅读全文

摘要："A. Little Artem" 不难发现，左上角是白色，其余是黑色就是满足题意的。。。 代码 include include include include include include include include include include include define INF 0x 阅读全文

摘要："A. Exercising Walk" 指定各个移动方向的移动次数，终点就是确定的，所以只要判断终点在不在范围之内，多余的步数让猫反复横跳就行了。要注意如果边界x1==x2，那么猫就不能左右移动，y轴也同理 代码 "B. Composite Coloring" 前十一个素数分别是2,3,5,7,1 阅读全文