#include <iostream>
#include <math.h>
using namespace std;
int main()
{
int n = 0;
int cnt = 0;
cin>>n;
if (n % 7) {
cout << 0 << endl;
return 0;
}
for (int a = 1; a < n / 7; a++)
{
if (n % a) continue;
int lim2 = n / a - 1;
for (int o = 1; o < lim2/2; o++)
{
if (lim2 % o) continue;
int k = lim2 / o - 1;
if ((a + o * a + k * o * a) == n)
cnt++;
}
}
cout<<cnt<<endl;
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 | #include <iostream> #include <math.h> using namespace std; int main() { int n = 0; int cnt = 0; cin>>n; if (n % 7) { cout << 0 << endl; return 0; } for (int a = 1; a < n / 7; a++) { if (n % a) continue; int lim2 = n / a - 1; for (int o = 1; o < lim2/2; o++) { if (lim2 % o) continue; int k = lim2 / o - 1; if ((a + o * a + k * o * a) == n) cnt++; } } cout<<cnt<<endl; return 0; } |
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