Дано целое число n (> 0). найти значение выражения 1.1 – 1.2 + 1.3 – … (n слагаемых, знаки чередуются). условный оператор не использовать. , , через паскаль

Var   i, n: integer;   sign, val, sum: real; begin   sign : = 1;   val : = 1.1;   writeln('введите "n": ');   readln(n);   for i : = 1 to n do   begin     sum : = sum + sign * val;     sign : = sign * -1;     val : = val + 0.1;   end;   writeln('результат:   ',sum); end.

type oras = (chisinau, orhei, balti, tigina, tiraspol); zi = (l, ma, mi, j, v, s, d); consum = array [oras, zi] of real; var c : consum; r : oras; z : zi; i,k : integer; sum,min_r,max_r,min_z,max_z: real; n_max_r,n_min_r,n_max_z,n_min_z: integer; begin r: =chisinau; randomize; for i: =1 to 5 do begin z: =l; for k: =1 to 7 do begin c[r,z]: =random*100; z: =succ(z); end; r: =succ(r); end; r: =chisinau; for i: =1 to 5 do begin z: =l; case ord(r) of 0: writeln('chisinau'); 1: writeln('orhei'); 2: writeln('balti'); 3: writeln('tigina'); 4: writeln('tiraspol'); end; for k: =1 to 7 do begin write(c[r,z]: 6: 2); z: =succ(z); end; r: =succ(r); writeln; end; writeln('vsego za nedelu'); r: =chisinau; min_r: =99999; max_r: =0; n_min_r: =-1; n_max_r: =-1; for i: =1 to 5 do begin z: =l; case ord(r) of 0: write('chisinau sum='); 1: write('orhei sum='); 2: write('balti sum='); 3: write('tigina sum='); 4: write('tiraspol sum='); end; sum: =0; for k: =1 to 7 do begin sum: =sum+c[r,z]; z: =succ(z); end; if sum> max_r then begin max_r: =sum; n_max_r: =ord(r); end; if sum< min_r then begin min_r: =sum; n_min_r: =ord(r); end;

r: =succ(r);

writeln(sum: 8: 2); end; writeln('po dnyam nedeli'); z: =l; min_z: =99999; max_z: =0; n_min_z: =-1; n_max_z: =-1;

for k: =1 to 7 do begin r: =chisinau; case ord(z) of 0: write('l sum='); 1: write('ma sum='); 2: write('mi sum='); 3: write('j sum='); 4: write('v sum='); 5: write('s sum='); 6: write('d sum='); end; sum: =0; for i: =1 to 5 do begin sum: =sum+c[r,z]; r: =succ(r); end; if sum> max_z then begin max_z: =sum; n_max_z: =ord(z); end; if sum< min_z then begin min_z: =sum; n_min_z: =ord(z); end; z: =succ(z); writeln(sum: 8: 2); end; writeln('gorod c maximalnim potrebleniem'); r: =chisinau; for i: =1 to 5 do begin if ord(r)=n_max_r then case ord(r) of 0: writeln('chisinau'); 1: writeln('orhei'); 2: writeln('balti'); 3: writeln('tigina'); 4: writeln('tiraspol'); end; r: =succ(r); end; writeln('gorod c minimalnim potrebleniem'); r: =chisinau; for i: =1 to 5 do begin if ord(r)=n_min_r then case ord(r) of 0: writeln('chisinau'); 1: writeln('orhei'); 2: writeln('balti'); 3: writeln('tigina'); 4: writeln('tiraspol'); end; r: =succ(r); end;

writeln('den c maximalnim potrebleniem'); z: =l; for k: =1 to 7 do begin if ord(z)=n_max_z then case ord(z) of 0: writeln('l'); 1: writeln('ma'); 2: writeln('mi'); 3: writeln('j'); 4: writeln('v'); 5: writeln('s'); 6: writeln('d'); end; z: =succ(z); end; writeln('den c minimalnim potrebleniem'); z: =l; for k: =1 to 7 do begin if ord(z)=n_min_z then case ord(z) of 0: writeln('l'); 1: writeln('ma'); 2: writeln('mi'); 3: writeln('j'); 4: writeln('v'); 5: writeln('s'); 6: writeln('d'); end; z: =succ(z); end;

readln;

end.

1)

var

a: array [1..5,1..10] of integer;

i,j,p: integer;

begin

for i: =1 to 5 do 

begin

for j: =1 to 10 do

begin

a[i,j]: =random(50)+1;

write(a[i,j]: 3);

end;

writeln;

end;

writeln('меняем 1 и последнюю строки');

for j: =1 to 10 do

begin

p: =a[1,j];

a[1,j]: =a[5,j];

a[5,j]: =p;

end;

for i: =1 to 5 do 

begin

for j: =1 to 10 do

write(a[i,j]: 3);

writeln;

end;

end.

2)

var a: array [1..5, 1..10] of integer; i, j: integer; p: real;

begin for i : = 1 to 5 do begin for j : = 1 to 10 do begin a[i, j] : = random(50) + 1; write(a[i, j]: 3); end; writeln; end; writeln('произведения элементов строк'); for i : = 1 to 5 do begin p : = 1; for j : = 1 to 10 do p : = p * a[i, j]; writeln(p: 25: 0); end; end.