HDU 1573 X问题 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4857 Accepted Submission(s): 1611 Problem Description 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2],…
链接:pid=1573">http://acm.hdu.edu.cn/showproblem.php? pid=1573 题意:求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], -, X mod a[i] = b[i], - (0 < a[i] <= 10). 思路:中国剩余定理的模板题(全部除数相互不互质版),假设找不到这种数或者最小的X大于N.输出零. 资料:http:/…
X问题 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 8365 Accepted Submission(s): 3037 Problem Description 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], …, X mod…
X问题 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2980 Accepted Submission(s): 942 Problem Description 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], …, X mod…
2891 -- Strange Way to Express Integers import java.math.BigInteger; import java.util.Scanner; public class Main { static final BigInteger ZERO = new BigInteger("0"); static final BigInteger ONE = new BigInteger("1"); static BigInteger…
X问题 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5221 Accepted Submission(s): 1761 Problem Description 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], …, X mod…
题目链接 题意 : 中文题不详述. 思路 : 中国剩余定理.求中国剩余定理中解的个数.看这里看这里 #include <stdio.h> #include <iostream> #include <math.h> using namespace std ; long long x,y ; long long N,M ; long long ext_gcd(long long a,long long b) { long long t,d ; ) { x = ; y = ;…
X问题 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 8354 Accepted Submission(s): 3031 Problem Description 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], -, X mo…
X问题 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], …, X mod a[i] = b[i], … (0 < a[i] <= 10). Input 输入数据的第一行为一个正整数…
X问题 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4869 Accepted Submission(s): 1617 Problem Description 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], …, X mod…
扩展中国剩余定理的板子,合并完之后算一下范围内能取几个值即可(记得去掉0) #include<iostream> #include<cstdio> #include<cmath> using namespace std; const int N=15; int T,n,m; long long a[N],b[N],A,B,x,y,d; bool fl; void exgcd(long long a,long long b,long long &d,long lo…
题目意思很直接就是一道裸的解线性同余模方程组的题目 #include <cstdio> #include <cstring> using namespace std; #define N 15 int r[N] , m[N]; int ex_gcd(int a , int &x , int b , int &y) { ){ x = , y = ; return a; } int ans = ex_gcd(b , x , a%b , y); int t = x; x…
Unknown Treasure Problem Description On the way to the next secret treasure hiding place, the mathematician discovered a cave unknown to the map. The mathematician entered the cave because it is there. Somewhere deep in the cave, she found a treasure…
题目:求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], -, X mod a[i] = b[i], - (0 < a[i] <= 10). 解法:先同上题一样用拓展欧几里德求出同余方程组的最后一个方程 X=ax+b,再调整 x 来求得 X 的解的个数.一些解释请看下面的代码. 注意--每次联立方程后求最小正整数解,可以提高代码速度. 1 #include<cstdio> 2 #i…
[题目描述] 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], …, X mod a[i] = b[i], … (0 < a[i] <= 10). [题解] 模板题,为读者提供一个中国剩余定理(非互质版)的模板 /************* HDU 1573 by chty 2016.11.2 *************/ #include<iostream> #incl…
http://acm.hdu.edu.cn/showproblem.php?pid=1573 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6718 Accepted Submission(s): 2342 Problem Description 求在小于等于N的正整数中有多少个X满足:X mod a[0] = b[0], X m…
[题目链接] http://acm.hdu.edu.cn/showproblem.php?pid=5768 [题目大意] 求出一个区间内7的倍数中,对于每个ai取模不等于bi的数的个数. [题解] 首先,对于x mod 7=0,和选取的一些x mod ai=bi,我们可以利用CRT解出最小的x值,那么这样子我们就可以对所有的aibi选取方式做容斥,得到x mod 7=0成立且所有x mod ai=bi不成立的x的个数.也就是答案. [代码] #include <cstdio> #include…
Unknown Treasure Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5446 Description On the way to the next secret treasure hiding place, the mathematician discovered a cave unknown to the map. The mathematician ent…