Var a: array[1..5,1..5] of integer; i,j: integer; begin writeln('исходный массив: '); for i: = 1 to 5 do begin for j: = 1 to 5 do begin a[i,j]: =random(21)-10; write(a[i,j]: 3,' ') end; writeln end; writeln; for i: = 1 to 5 do begin for j: = 1 to 5 do begin if (j> i) then a[i,j]: =3 else if (j< i) then a[i,j]: =0 else a[i,j]: =7; write(a[i,j]: 3,' ') end; writeln; end; end.
nchalov2
02.01.2021
Const n = 21; var a: array[1..n] of integer; i,k: integer; s: real; begin randomize; s: =0; k: =0; write('исходный массив: '); for i: = 1 to n do begin a[i]: =random(80)-44; write(a[i],' '); if a[i]< =12 then begin s: =s+a[i]; k: =k+1 end; end; writeln; writeln('sr = ',s/k) end.