Если нужен паскаль:
1.
var
a,b:integer;
begin
readln(a,b);
writeln(a,'+',b,'=',a+b);
writeln(a,'*',b,'=',a*b);
end.
2.
var
n,c,m,h:integer;
begin
readln(n);
m:=n div 60;
c:=n mod 60;
if m>=60 then
begin
h:=m div 60;
m:=m mod 60;
if m<>0 then
if c<>0 then
write(h,'ч ',m,'мин ',c,'с')
else
write(h,'ч ',m,'мин ')
else
if c<>0 then
write(h,'ч ',c,'с')
else
write(h,'ч');
end
else
if m<>0 then
if c<>0 then
write(m,'мин ',c,'с')
else
write(m,'мин ')
else
write(c,'с');
end.
Объяснение:
program XandY;
const
rndlim=50;
var
x, y : integer;
begin
x:=random(rndlim);
y:=random(rndlim);
Writeln('x=',x,' y=', y);
Writeln('x+y = ',x+y);
Writeln('x-y = ',x-y);
Writeln('x*y = ',x*y);
Writeln('x^2 + y^2 = ',sqr(x)+sqr(y));
end.
Запуск:
Free Pascal Compiler version 2.6.2-8 [2014/01/22] for x86_64
Copyright (c) 1993-2012 by Florian Klaempfl and others
Target OS: Linux for x86-64
Compiling main.pas
Linking a.out
16 lines compiled, 0.2 sec
x=27 y=29
x+y = 56
x-y = -2
x*y = 783
x^2 + y^2 = 1570
