Сделать блок-схему этой var summa, count, numb : integer; begin summa: =0; count: =0; readln(numb); while numb < > 0 do begin if numb mod 17 = 0 then begin summa: =summa+numb; count: =count+1; end; readln(numb); end; if (summa > 0) and (count > 0) then writeln(summa, ' ', count) else writeln('no'); end.

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--- Python 3.8.3 ---

def MatrixPrint(Matr):

   matrixstring = ''

   rows = len(Matr)

   cols = len(Matr[0])

   for row in range(rows):

       for col in range(cols):

           matrixstring += str(Matr[row][col]) + ' '

       matrixstring += '\n'

   print(matrixstring)

def main():

   n = int(input())

   Matr = [[int(i) for i in input().split(maxsplit=n)] for i in range(n)]

   for i in range(n):

           Matr[i][i], Matr[i][n-i-1] = Matr[i][n-i-1], Matr[i][i]

   MatrixPrint(Matr)

   

if __name__ == "__main__":

   main()

Объяснение:

--- Python 3.7 ---

def MatrixRead(Rows, RowLength, ContType):

   for row in range(Rows):

       print('Enter line ' + str(row))

       buff = []

       [buff.append(ContType(input())) for _ in range(RowLength)]

       yield buff

       

def MatrixSwap(Matrix, OldPos:tuple, NewPos: tuple):

   Matrix[OldPos[0]][OldPos[1]], Matrix[OldPos[1]][OldPos[0]] = Matrix[NewPos[1]][NewPos[0]], Matrix[NewPos[0]][NewPos[1]]

   return Matrix

   

def MatrixPrint(Matrix, end = '\n'):

   for Row in Matrix:

       print(*Row, end ='\n')

   print(end)

   

   

def main():

   N = int(input()) #Matrix Size

   Matr =list( MatrixRead(N, N, int))

   MatrixPrint(Matr) #For check

   for row in range(N):

       for col in range(N):

           SecDiagPos = (row, N-col-1)

           MainDiagPos = (row, col)

           Matr = MatrixSwap(Matr, MainDiagPos, SecDiagPos)

   MatrixPrint(Matr)

   

if __name__ == '__main__':

   main()

Объяснение: