1:
var n:integer;otvet:real;
begin
writeln('Введи n:');
readln(n);
otvet:=1;
for var i:=1 to n do otvet:=otvet*i;
writeln('n!=',otvet);
<span>end.
2:
var n:integer;otvet:real;prostoe:boolean;
begin
writeln('Введи n:');
readln(n);
prostoe:=true;
for var i:=2 to n-1 do if n mod i = 0 then
begin
writeln(n, ' Не простое, делится на ',i);
prostoe:=false;
exit;
end;
if prostoe then writeln(n, ' Простое');
<span>end. </span></span>
Readln(x);
//X^Y = exp(ln(X) * Y) - возведение в степень
ctg1:=cos(x)/sin(x);
y:=sqrt(sqrt((x*x+3)/(x-1))-exp(ln(ctg1*5)*3);
Var
f1, f2, i, j: integer;
a, b: array [1..5,1..5] of integer;
begin
for i := 1 to 5 do
begin
for j := 1 to 5 do
read(a[i][j]);
readln;
end;
f1 := 0;
f2 := 0;
for i := 1 to 5 do
begin
if (i = 3) then
continue
else
inc(f1);
f2 := 0;
for j := 1 to 5 do
if (j = 3) then
continue
else
begin
inc(f2);
b[f1][f2] := a[i][j];
end;
end;
end.
Program Task;
Const pupils = 20; subjects = 10;
Var marks: Array[1..pupils, 1..subjects] of Integer;
marks_average: Array[1..pupils] of Real;
i, j: Integer;
all_marks_average: Real;
Begin For i := 1 To pupils Do
Begin
WriteLn('Введите через пробел оценки ученика №', i);
For j := 1 To subjects Do
Read(marks[i, j]);
End;
For i := 1 To pupils Do
Begin
For j := 1 To subjects Do
marks_average[i] := marks_average[i] + marks[i, j];
marks_average[i] := marks_average[i] / subjects;
End; For i := 1 To pupils Do
all_marks_average := all_marks_average + marks_average[i];
all_marks_average := all_marks_average / pupils;
WriteLn('Результат: ', all_marks_average:2:2);
ReadLn;
<span>End.</span>