.
: ++.
.
. - .
.
if (<->) <>; //
if (<->) <1>; //
else <2>;
<-> , . <-> (. . ), . :
if (x<y&&x<z)min=x;
<-> , 1, <-> 2.:
if (d>=0)
{
x1=(-b-sqrt(d))/(2*a);
x2=(-b+sqrt(d))/(2*a);
cout<< \nx1=<<x1<<x2=<<x2;
}
else cout<<\n ;
.
switch (<>)
{
case <1>: <1 >;
case <2>: <2 >;
...........
default: <>;
.
switch, , switch , case. . , , . , switch , , default. default .
:
switch (number)
{
case 1: cout<< =1;break;
case 2: cout<< 2 * 2<<number * number;
case 3: cout<< 3 * 3<<number * number; break;
case 4: cout<< number<<- ; break;
default: cout<< ;
}
.
,
1) 
2) 
3) 
4) 
5) 
6) 
7) 
8) 
9) 
10) 
11) 
12) 
13) 
14) 
15) 
1. .
2. .
3. .
4. .
5. .
6. .
.
: 
.
#include<iostream.h> //
|
|
|
main()
{
float a1,a2,b1,b2; //
float r1,r2;
cout<<" "; //
cout<<" 1:";
cin>>a1; // a1
cout<<" b1:";
cin>>b1; // b1
cout<<" 2:";
cin>>a2; // a2
cout<<" b1:";
cin>>b1; // b2
cout<<a1<<x+<<b1<<<0\n;
cout<<a2<<x+<<b2<<<0\n;
r1=(-b1)/a1; // r1 r2
r2=(-b2)/a2;
if ((r1<0) & (r2<0)) //
{
switch (r1<r2) //
{
case 0:cout<<" X<"<<r1;
case 1:cout<<" X<"<<r2;
}
}
else
{
switch (r1>r2)
{
case 0:cout<<" X<"<<r1;
case 1:cout<<" X<"<<r2;
}
}
}
