RealPhobia Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 376    Accepted Submission(s): 151 Problem Description Bert is a programmer with a real fear of floating point arithmetic. Bert has qui…

题目大意:给你两个球的坐标 他们都往(1, 1)这个方向以相同的速度走,问你他们在哪个位置碰撞. 思路:这种题目需要把x方向和y方向分开来算周期,两个不同周期需要用扩展欧几里得来求第一次相遇. #include<bits/stdc++.h> #define LL long long #define fi first #define se second #define mk make_pair #define pii pair<int, int> #define y1 skldjfs…

Romantic Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4400    Accepted Submission(s): 1852 Problem Description The Sky is Sprite.The Birds is Fly in the Sky.The Wind is Wonderful.Blew Throw t…

#include<stdio.h> #include<iostream> #define ll __int64 ll gcd(ll a,ll b,ll &x,ll &y) { ll k; if(b==0) { x=1;y=0; return a; } ll d=gcd(b,a%b,x,y); k=x; x=y; y=k-a/b*y; return d; } int main() { ll a,b,x,y,t,n; while(scanf("%I64d%I6…

Problem Description RSA is one of the most powerful methods to encrypt data. The RSA algorithm is described as follow: > choose two large prime integer p, q> calculate n = p × q, calculate F(n) = (p - 1) × (q - 1)> choose an integer e(1 < e &l…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1576 不知道扩展欧几里得的同学可以参考:https://blog.csdn.net/zhjchengfeng5/article/details/7786595 我的推理: 这图片是真的大啊... #include<iostream> #include<cstring> #include<algorithm> #include<queue> #include<…

题目链接 题意:开始有a,b两点,之后可以按照a-b,a+b的方法生成[1,n]中没有的点,Yuwgna 为先手, Iaka后手.最后不能再生成点的一方输: (1 <= n <= 20000) T组数据T <= 500; 思路:由扩展欧几里得知道对于任意正整数,一定存在整数x,y使得 x*a + y*b = gcd(a,b);并且这个gcd是a,b组成的最小正整数:同时也知道了这也是两个点之间的最小距离: 之后直接求点的个数即可: ps:这道题我竟然想到了组合游戏..明显没有说双方都要用…

Problem Description 要求(A/B)%9973,但由于A很大,我们只给出n(n=A%9973)(我们给定的A必能被B整除,且gcd(B,9973)= 1). Input 数据的第一行是一个T,表示有T组数据. 每组数据有两个数n(0 <= n < 9973)和B(1<= B <= 10^9). Output 对应每组数据输出(A/B)%9973. Sample Input 2 1000 53 87 123456789 Sample Output 7922 6060…

<题目链接> <转载于 >>> > A/B Problem Description 要求(A/B)%9973,但由于A很大,我们只给出n(n=A%9973)(我们给定的A必能被B整除,且gcd(B,9973) = 1).   Input 数据的第一行是一个T,表示有T组数据.每组数据有两个数n(0 <= n < 9973)和B(1 <= B <= 10^9).   Output 对应每组数据输出(A/B)%9973.   Sample In…

Invoker Problem Description On of Vance's favourite hero is Invoker, Kael. As many people knows Kael can control the elements and combine them to invoke a powerful skill. Vance like Kael very much so he changes the map to make Kael more powerful.  In…