#include <cstdio> using namespace std; int n, w = 0; int main(){ scanf("%d", &n); for (int a=1; a*a<=n; ++a) { if (n%a != 0) continue; int m = n/a-1; for (int x=2; x*x<=m; ++x) { if (m%x != 0) continue; { int y = m/x - 1; int b = a*x; int c = a*x*y; if (b != c) { ++w; // printf("%d %d %d\n", a, b, c); } } if (x*x != m) { int y = m/(m/x) - 1; int b = a*(m/x); int c = a*(m/x)*y; if (b != c) { ++w; // printf("%d %d %d\n", a, b, c); } } } } printf("%d\n", w); }
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 | #include <cstdio> using namespace std; int n, w = 0; int main(){ scanf("%d", &n); for (int a=1; a*a<=n; ++a) { if (n%a != 0) continue; int m = n/a-1; for (int x=2; x*x<=m; ++x) { if (m%x != 0) continue; { int y = m/x - 1; int b = a*x; int c = a*x*y; if (b != c) { ++w; // printf("%d %d %d\n", a, b, c); } } if (x*x != m) { int y = m/(m/x) - 1; int b = a*(m/x); int c = a*(m/x)*y; if (b != c) { ++w; // printf("%d %d %d\n", a, b, c); } } } } printf("%d\n", w); } |