1) var a, b, s: real; begin read (a, b); s: =a*b; write (s: 10:4); end. 2) var a, b, c, k: integer; begin read (a, b, c); k: =0; if a > 0 then inc (k); if b > 0 then inc (k); if c > 0 then inc (k); writeln (k); end. 3) var a: integer; begin read (a); writeln (a mod 10)*(a mod 100 div 10)*(a div 100 mod 10)*(a div 1000); end. 4) var c, n: integer; begin read (n); c: =0; repeat inc (c); n: =n div 10; until n=0; writeln (c); end. 5) var n, sum, i: integer; begin read (n); sum: =0; for i: =1 to n do sum: =sum+i; writeln (sum); end. 6) var d, n, k: integer; begin read (n, k); d: =0; while n >=k do begin d: =d+1; n: =n — k; end; writeln ('n div k=', d); writeln ('n mod k=', n); end. 7) var n, sum, i, tmp: integer; begin read (n); sum: =0; for i: =1 to n do begin read (tmp); sum: =sum+tmp; end; writeln (sum / n); end. 8) var i, n, s: integer; a: array [1… 1000] of integer; begin s: =2; read (n); for i: =1 to n do begin a[i]: =s; s: =s+2*i+1; end; for i: =1 to n do write (a[i], '); end. 9) var n, i, count, tmp: integer; begin read (n); count: =0; for i: =1 to n do begin read (tmp); if tmp < 0 then inc (count); end; writeln (count); end. 10) var n, i, j: integer; begin read (n); for i: =1 to n do begin for j: =1 to i do write ('*'); writeln; end; end. 11) //Не понял, как заполняется массив? Тут рандомvar a: array [1… 1000] of integer; i, n: integer; begin read (n); for i: =1 to n do a[i]: =trunc (random (1000) — 500; for i: =1 to n do if a[i] > 0 then a[i]: =a[i]*(-1) else if a[i] < 0 then a[i]: =sqr (a[i]); for i: =1 to n do write (a[i], '); end. 12) var n, i, count: integer; begin read (n); count: =0; for i: =1 to n do if n mod i=0 then inc (count); writeln (count); end.