aasthagupta30

class Solution:
    def setZeroes(self, matrix: List[List[int]]) -> None:
        row=len(matrix)
        col=len(matrix[0])
        col1=1
        for i in range(row):
            if matrix[i][0]==0:
                col1=0
            for j in range(1,col):
                if matrix[i][j]==0: