[Leetcode] 每日两题1401 1716 -day72

1401. 圆和矩形是否有重叠

计算矩阵 边界和圆心的最近距离， 计算 x方向的最近点，以及y方向的最近点，然后再拿距离和半径比较就行了

class Solution:
    def checkOverlap(self, radius: int, xCenter: int, yCenter: int, x1: int, y1: int, x2: int, y2: int) -> bool:
        dx ,dy =0,0
        if x1 >xCenter:
            dx = x1-xCenter
        elif xCenter>x2:
            dx = xCenter-x2
        else :
            dx =0
        if y1 >yCenter:
            dy = y1 - yCenter
        elif yCenter>y2:
            dy =  yCenter - y2 
        else :
            dy =0
        return dx*dx + dy*dy <= radius*radius

1716. 计算力扣银行的钱

数学题 ，等差的等差，先计算完整的7个的和，再计算多余的

class Solution:
    def totalMoney(self, n: int) -> int:
        lis = [0,1,3,6,10,15,21,28]
        return n//7*28+((n//7-1)*(n//7))//2*7+lis[n%7]+(n)%7*(n//7)