--- 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:
// PascalABC.NET 3.2, сборка 1381 от 04.02.2017
// Внимание! Если программа не работает, обновите версию!
begin
var n:=3;
var s:=0;
repeat
s+=n;
if s>=100 then begin s-=n; break end
else
if n<>3 then Write('+',n) else Write(n);
n+=3
until false;
Writeln('=',s)
end.
Результат
3+6+9+12+15+18+21=84