// Akw.cpp : This file contains the 'main' function. Program execution begins and ends there.
//
#include <iostream>
#include <cmath>
static int isSquare(int n)
{
int m = sqrt(n);
return m * m == n ? m : 0;
}
static int findQuadraples(int range)
{
int total = 0;
for (int a = 1; a <= range; a++)
{
for (int b = a; b <= range; b++)
{
for (int c = 1; c <= range; c++)
{
int sum = a * a + b * b + c * c;
int d = isSquare(sum);
if (d != 0)
{
if (d <= range)
{
total++;
}
else
{
break;
}
}
}
}
}
return total;
}
int main()
{
int n;
std::cin >> n;
std::cout << findQuadraples(n);
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | // Akw.cpp : This file contains the 'main' function. Program execution begins and ends there. // #include <iostream> #include <cmath> static int isSquare(int n) { int m = sqrt(n); return m * m == n ? m : 0; } static int findQuadraples(int range) { int total = 0; for (int a = 1; a <= range; a++) { for (int b = a; b <= range; b++) { for (int c = 1; c <= range; c++) { int sum = a * a + b * b + c * c; int d = isSquare(sum); if (d != 0) { if (d <= range) { total++; } else { break; } } } } } return total; } int main() { int n; std::cin >> n; std::cout << findQuadraples(n); return 0; } |
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