Задача №699. Даны квадратные матрицы А и В порядка n. Получить матрицу АВ – ВА.
Решение Pascal
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | program Pr699; var A,B,C,D,E:array [1..50,1..50] of integer; i,j,k,n: integer; begin readln(n); for i:=1 to n do begin for j:=1 to n do begin A[i,j]:=random(50); B[i,j]:=random(50); end; end; for i:=1 to n do begin for j:=1 to n do write(A[i,j],' '); writeln; end; readln; for i:=1 to n do begin for j:=1 to n do write(B[i,j],' '); writeln; end; readln; for i:=1 to n do for j:=1 to n do begin C[i,j]:=0; for k:=1 to n do C[i,j]:= C[i,j] + A[i,k]*B[k,j]; end; for i:=1 to n do for j:=1 to n do begin D[i,j]:=0; for k:=1 to n do D[i,j]:= D[i,j] + B[i,k]*A[k,j] end; for i:=1 to n do for j:=1 to n do E[i,j]:= C[i,j]-D[i,j]; for i:=1 to n do begin for j:=1 to n do write(E[i,j],' '); writeln; end; readln; end. |
