Vasya And The Matrix CodeForces - 1016D （思维+构造）

【Vasya And The Matrix CodeForces - 1016D （思维+构造）】的更多相关文章

Vasya And The Matrix CodeForces - 1016D （思维+构造）

Now Vasya is taking an exam in mathematics. In order to get a good mark, Vasya needs to guess the matrix that the teacher has constructed! Vasya knows that the matrix consists of n rows and m columns. For each row, he knows the xor (bitwise excluding…

Sonya and Matrix CodeForces - 1004D (数学,构造)

http://codeforces.com/contest/1004/problem/D 题意:网格图给定到中心点的曼哈顿距离数组, 求该图n,m及中心点位置首先可以观察到距离最大值mx一定在某个角上, 可将它调整到位置(n,m) 设中心点(x, y) 则可以得到 n-x+m-y=mx 再注意到假若图无限大, 则对每个距离d的取值一定有4*d个即第一个取值数<4*d的d可以调整为中心点的x坐标然后就可以暴力枚举因子判断了 #include <iostream>#include &l…

A Mist of Florescence CodeForces - 989C(思维构造)

题意: 让你构造一个图,使得A,B,C,D的个数为给定的个数,上下左右连通的算一个. 哎呀看看代码就懂了..emm..很好懂的 #include <bits/stdc++.h> using namespace std; , INF = 0x7fffffff; ][]; int main() { ; i<; i++) ; j<; j++) ) str[i][j] = 'A'; else str[i][j] = 'B'; int a, b, c, d; cin>> a &…

Vasya and Magic Matrix CodeForces - 1042E (概率dp)

大意:给定n*m矩阵, 初始位置(r,c), 每一步随机移动到权值小于当前点的位置, 得分为移动距离的平方, 求得分期望. 直接暴力dp的话复杂度是O(n^4), 把距离平方拆开化简一下, 可以O(n^2logn). #include <iostream> #include <sstream> #include <algorithm> #include <cstdio> #include <math.h> #include <set>…

Educational Codeforces Round 48 (Rated for Div. 2) D 1016D Vasya And The Matrix (构造)

D. Vasya And The Matrix time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Now Vasya is taking an exam in mathematics. In order to get a good mark, Vasya needs to guess the matrix that the te…

codeforces1016 D. Vasya And The Matrix（思维+神奇构造）

D. Vasya And The Matrix time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Now Vasya is taking an exam in mathematics. In order to get a good mark, Vasya needs to guess the matrix that the te…

D. Vasya And The Matrix(Educational Codeforces Round 48)

D. Vasya And The Matrix time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Now Vasya is taking an exam in mathematics. In order to get a good mark, Vasya needs to guess the matrix that the teache…