1-mavzu: algoritmlar reja: Algoritmlarning xossalari. Algoritmlarning turlari. Tayanch so‘z va iboralar

Yechilgan Masalalar
Masala 1.C++ da satrni palindromga tekshiradigan programmanu yozing. (Satr polindrom bo`ladi agar u ikkala oxiridan ham bir xil o`qilsa,masalan, MADAM, NITIN, MALAYALAM va hokazo.)
Yechim.
//Satrni palindromga tekshiring
#include < iostream.h >
#include< conio.h >
#include< stdio.h> //gets( ) uchun
#include < string.h > //strlen( ) uchun
const int SIZE =80;
void main( )
{
char arr[SIZE];
int i,len,mid;
clrscr( );
cout<< "Enter the string of length < = " << SIZE-1 << "\n\n";
gets(arr);
//find length of string
len = strlen(arr);
mid = len/2;
//palendromga tekshirish
i=0;
while(i < mid)
{
if(arr[1] ! = arr[len-1-i])
break;
i+ +;
}
if(i = =mid)
cout<< "\nSatr palindrom\n";
else
cout<<"\nSatr palindrom emas";
}
Masala 2. C++ da klaviaturadan butun sonni kiritib unin raqamlari yig`indisini hisoblaydigan programma yozing, masalan, agar 123 butun son bo`lsa, 1+2+3=6 chiqarilishi kerak.
Yechim.
//input an integer from the keyboard and give
//the sum of the digits of the number, for example
//if the integer is 123, the output should be ⁹³
//1+2+3=6
#include < iostream.h >
#include< math.h>
#include
#include< std1ib.h > // itoa( ) uchun butun sonni satrga o`tkazish
#include< conio.h >
void main( )
{
int num,temp,len,digit,sum = 0;
char string[6]; //butun sonni satr kabi saqlash
clrscr( ); //ekranni tozalash
cout<<"Butun sonni kiriting\n\n";
cin >> num;
cout<< "\nKiritilgan butun son bu: " << num << endl;
if(num < = 9)
cout<else
{
temp=num;
itoa(num,string,l0); //butun sonni satrga o`tkazing
//satrda raqamlar sonini topish
len = strlen(string);
cout<while(len-1) //siklni len-1 marta bajarish
{
digit = temp / pow(l0,len-1);
sum + = digit;
cout<temp = temp - digit * (pow(l0,len-1));
len- -;
}
sum + = temp;
cout<}
getch( ); // monitorni muzlatish
}⁹⁴