题目如下： Given amatrix, and atarget, return the number of non empty submatrices that sum totarget. A submatrixx , y , x , y is the set of all cellsmatrix x y withx lt x lt x andy lt y lt y . Two submatri ...
2019-06-28 11:33 0 454 推荐指数：
Given a matrix and a target, return the number of non-empty submatrices that sum to target. A submatrix x1, y1, x2, y2 is the set of all cells ...
^9 + 7 to roll the dice so the sum of the face up number ...
You have d dice and each die has f faces numbered 1, 2, ..., f. Return the number of possible ways (out of fd total ways) modulo 109 + 7 to roll ...
You are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now you have 2 symbols + and -. For each integer, you should ...
原题: https://www.patest.cn/contests/pat-b-practise/1074 思路: 就是人工模拟加法的问题, 正常进制都是10, 现在就是进制从字符串中 读取. 但有些情况要坐下特殊处理, 比如输入的两个数可能位数不一样, 这对 我们后续计算造成不小的麻烦 ...
题目如下： Given an integer array arr and a target value target, return the integer value such that when we change all the integers larger than value ...
You are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now you have 2 symbols + and -. For each integer, you should choose ...
这是一道水题，作为没有货的水货楼主如是说。 题意：已知一个数组nums {a1,a2,a3,.....,an}（其中0<ai <=1000(1<=k<=n, n<=20 ...
