Cosmic Tables Time Limit:3000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 222B Description The Free Meteor Association (FMA) has got a problem: as meteors are moving, the Universal Cosmic Descriptiv…

C. K-special Tables time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output People do many crazy things to stand out in a crowd. Some of them dance, some learn by heart rules of Russian language,…

/*做完这题发现自己好水,太伤人了.... 不过还是学到一些,如果直接暴力模拟的话肯定是TLM.. 所以要用虚拟数组来分别保存当前数组的每行没列在初始数组中的位置...*/ #include<cstdio> #include<algorithm> using namespace std; #define max 1000+5 int a[max][max]; int r[max],c[max]; int main() {     int n,m,k;     while(~scan…

A. Shooshuns and Sequence 显然\([k,n]\)之间所有数均要相同,为了求最少步数,即最多模拟\(n\)次操作即可. B. Cosmic Tables 映射\(x_i,y_i\)即可. C. Reducing Fractions 分别统计\(\prod a_i.\prod b_i\)的质因子系数,然后取小即可. D. Olympiad 相当于计算\(a_i+b_j \ge x\)最大数量,显然每次从\(a_i\)获\(b_j\)中找最大值,然后从另一集合中找出最小值刚好…

C. K-special Tables 题目连接: http://www.codeforces.com/contest/625/problem/C Description People do many crazy things to stand out in a crowd. Some of them dance, some learn by heart rules of Russian language, some try to become an outstanding competitiv…

time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output People do many crazy things to stand out in a crowd. Some of them dance, some learn by heart rules of Russian language, some try to become a…

传送门 Description People do many crazy things to stand out in a crowd. Some of them dance, some learn by heart rules of Russian language, some try to become an outstanding competitive programmers, while others collect funny math objects. Alis is among…

A. Restaurant Tables time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output In a small restaurant there are a tables for one person and b tables for two persons. It it known that n groups of peopl…

[Link]:http://codeforces.com/contest/828/problem/A [Description] 有n个组按照时间顺序来餐馆; 每个组由一个人或两个人组成; 每当有一个组来餐馆的时候; 按照如下优先顺序安排; ①组内只有一个人的情况 先看有没有空的单人桌,再看有没有空的双人桌,最后看已经有一个人的双人桌 ②组内有两个人的情况 只看双人桌; 如果不能找到符合要求的; 直接拒绝他们的请求; 问:有多少人会被拒绝; [Solution] 注意那里的顺序就好; 另外开一个…

题意 把1到n*n填在n*n的格子里.要求每一行都是递增的,使第k列的和最大. 分析 第k列前的格子1 2 .. 按要求填到满格,然后第k列及后面的格子,都从左到右填递增1的数. 第k列的和再加起来,我很矫情地求了公式=_= 代码 #include<cstdio> int n,k; int a[505][505]; int main() { scanf("%d%d",&n,&k); int m=1; for(int i=1; i<=n; i++) fo…