C. Magic Odd Square time limit per test:1 second memory limit per test:256 megabytes input:standard input output:standard output Find an n × n matrix with different numbers from 1 to n2, so the sum in each row, column and both main diagonals are odd.…
F - Expected Square Beauty 思路:https://codeforces.com/blog/entry/68111 代码: #pragma GCC optimize(2) #pragma GCC optimize(3) #pragma GCC optimize(4) #include<bits/stdc++.h> using namespace std; #define y1 y11 #define fi first #define se second #define…
A. Plus and Square Root time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder is playing a game. There is a number displayed on the screen and there are two buttons, ' + ' (plus) an…
Bear and Square Grid 枚举k * k 的位置, 然后接上它周围白色连通块的数量, 再统计完全在k * k范围里的连通块, 这个只要某个连通块全部的方格 在k * k里面就好, 并且k * k是一行一行移的, 所以可以优化到n ^ 3. #include<bits/stdc++.h> #define LL long long #define fi first #define se second #define mk make_pair #define PLL pair<…
Magic Odd Square Find an n × n matrix with different numbers from 1 to n2, so the sum in each row, column and both main diagonals are odd. Input The only line contains odd integer n (1 ≤ n ≤ 49). Output Print n lines with n integers. All the integers…
B. Petya and Square time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Little Petya loves playing with squares. Mum bought him a square 2n × 2n in size. Petya marked a cell inside the square…
Find an n × n matrix with different numbers from 1 to n2, so the sum in each row, column and both main diagonals are odd. Input The only line contains odd integer n (1 ≤ n ≤ 49). Output Print n lines with n integers. All the integers should be differ…
E. Bear and Square Grid 题目连接: http://www.codeforces.com/contest/680/problem/E Description You have a grid with n rows and n columns. Each cell is either empty (denoted by '.') or blocked (denoted by 'X'). Two empty cells are directly connected if the…
C. Bear and Square Grid time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You have a grid with n rows and n columns. Each cell is either empty (denoted by '.') or blocked (denoted by 'X'). T…
A - Theatre Square Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 1A Description Theatre Square in the capital city of Berland has a rectangular shape with the size n × m meters. On the…
A. Bear and Five Cards time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A little bear Limak plays a game. He has five cards. There is one number written on each card. Each number is a posit…
codeforces 423 A. Restaurant Tables [水题] //注意,一个人选座位的顺序,先去单人桌,没有则去空的双人桌,再没有则去有一个人坐着的双人桌.读清题意. #include <cstdio> #include <algorithm> #include <cstring> using namespace std; int n, a, b, bb, x; int main() { ; scanf("%d%d%d", &am…
传送门 A. 2048 Game 乱搞即可. Code #include <bits/stdc++.h> #define MP make_pair #define fi first #define se second #define sz(x) (int)(x).size() //#define Local using namespace std; typedef long long ll; typedef pair<int, int> pii; const int N = 1e5…
题目:http://codeforces.com/contest/1207/problem/B B. Square Filling time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given two matrices A and B. Each matrix contains exactly n rows a…
[Educational Codeforces Round 16]C. Magic Odd Square 试题描述 Find an n × n matrix with different numbers from 1 to n2, so the sum in each row, column and both main diagonals are odd. 输入 The only line contains odd integer n (1 ≤ n ≤ 49). 输出 Print n lines…
题目链接:Codeforces 417E Square Table 题目大意:给出n和m.要求给出一个矩阵,要求每一列每一行的元素的平方总和是一个平方数. 解题思路:构造.依照 a a a b a a a b a a a b c c c d 的方式取构造,然后a,b,c,d的值用随机生成数去枚举,只是我认为用暴力也是能够的. #include <cstdio> #include <cstring> #include <cmath> #include <cstdli…
C. Plus and Square Root time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder is playing a game. There is a number displayed on the screen and there are two buttons, ' + ' (plus) an…
题目网址:http://codeforces.com/contest/828/problem/B 题目: Polycarp has a checkered sheet of paper of size n × m. Polycarp painted some of cells with black, the others remained white. Inspired by Malevich's "Black Square", Polycarp wants to paint mini…
