Задача №699. Даны квадратные матрицы А и В порядка n. Получить матрицу АВ – ВА.
Решение Pascal
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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. |
