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#include <iostream>
 
 using namespace std;
 long long Pow(long long num, int stepen)
 {
     long long result = num;
    for(int i=1;i<stepen;i++)
    {
        result *= num;
    }
    return result;
 }
int main()
{
    // (((5^2-4^2)^2-3^2)^2-2^2)^2-1^2)^2
    cout << Pow(2,3) << endl;
    
    return 0;
}

int main()
{
    INT64 sum = 0;
    for (int i = 5; i > 0; i--)
    {
        if (i == 5)
            sum = 25;
        else
        {
            sum -= i*i;
            sum = sum*sum;
        }
    }
    cout << sum;
    _getch();
    return 0;
}

    INT64 sum = 30;
    for (int i = 5; i > 0; i--)
        sum = (sum - i*i)*(sum - i*i);

#include <stdio.h>
#include <stdlib.h>
 
int pow1(int a, int b){ if(b ==1) return a; return a*pow1(a, --b);}
int main(){
 
char* x="(((5^2-4^2)^2-3^2)^2-2^2)^2-1^2)^2/0";
int i; int state; int op1, op2;
for(i=0, state = 0; x[i]!='/0'; i++)
{
switch(x[i])
{
case '(': switch(state){ case 0: state =1; break; case 1: state=2; break; case 2: state=3; break; default: break;} break;
case ')': switch(state){ case 6: op2-=op1; printf("op2:%d\n", op2); state=7; break; case 9: state= 2; break; default: break;} break;
case '^': switch(state){ case 4: state=5; break; case 7: op1= op2; state= 9; break; case 8: state= 9; break; default: break;} break;
case '-': switch(state){ case 6: op2=op1; state=7; break; default:break;} break;
case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
switch(state){ case 1: case 2: case 3: op1 = x[i]-'0'; state=4; break;
case 9: case 5: op1= pow1(op1, x[i]-'0'); printf("%d\n", op1); state =6;
case 7: op1 = x[i]-'0'; state=8; break; default: break;}
break;
default: break;}
}
return 0;
}

# include <iostream>
 
unsigned long toSquare(unsigned long x)
{
    return x*x;
}
 
int main()
{
    const int aConst = 5;
    int a = aConst;
    int b = a - 1;
    for (; b>0; --b)
    {
 
        int aSquared = toSquare(a);
        std::cout << "There is value of aSquared: "
                  << aSquared << std::endl;
        int bSquared = toSquare(b);
        std::cout << "There is value of bSquared: "
                  << bSquared << std::endl;
        a = aSquared - bSquared;
        std::cout << "There is value of variable a: "
                  << a << std::endl;
 
    }
    std::cout << "There is result of calculating: "
              << a << std::endl;
}

# include <iostream>
 
unsigned long toSquare(unsigned long x)
{
    return x*x;
}
 
int main()
{
    const int aConst = 5;
    int a = aConst;
    int b = a - 1;
    for (; b>0; --b)
    {
        int aSquared = toSquare(a);
        int bSquared = toSquare(b);
        a = aSquared - bSquared;
    }
    std::cout << "There is result of calculating: "
              << a << std::endl;
}

# include <iostream>
 
int main()
{
    int a = 5;
    for (int b=a-1; b>0; --b)
        a = a * a - b * b;
    std::cout << "There is result of calculating: " << a << std::endl;
}

long n = 5;
long x = n*n;
for( --n ; n>=1; --n )
{
// вычтем n*n 
x -= n*n;
 
// возведём в квадрат
x *= x;
}

# include <iostream>
 
int main()
{
    int a = 5;
    for (int b=a-1; b>0; --b)
        a = a * a - b * b;
    std::cout << "There is result of calculating: " << a << std::endl;
    return 0;
}