摘要：C. No Prime Differences You are given integers $n$ and $m$. Fill an $n$ by $m$ grid with the integers $1$ through $n\cdot m$, in such a way that for a 阅读全文

摘要：Count of Integers You are given two numeric strings num1 and num2 and two integers max_sum and min_sum. We denote an integer x to be good if: num1 <= 阅读全文

摘要：Maximum Strictly Increasing Cells in a Matrix Given a 1-indexed m x n integer matrix mat, you can select any cell in the matrix as your starting cell. 阅读全文

摘要：D. The BOSS Can Count Pairs You are given two arrays $a$ and $b$, both of length $n$. Your task is to count the number of pairs of integers $(i,j)$ su 阅读全文