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25 lines
752 B
C++

#define _CRT_SECURE_NO_WARNINGS
#define _SILENCE_CXX17_C_HEADER_DEPRECATION_WARNING
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n, ans = 0;
scanf("%d", &n);
int num[] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
do
{
for (int i = 1; i < 8; i++)
for (int j = i + 1; j < 9; j++)
{
int a = 0, b = 0, c = 0;
for (int k = 0; k < i; k++) a = a * 10 + num[k];
for (int k = i; k < j; k++) b = b * 10 + num[k];
for (int k = j; k < 9; k++) c = c * 10 + num[k];
if (b % c == 0 && n == a + b / c) ans++;
}
} while (next_permutation(num, num + 9));
printf("%d", ans);
return 0;
}