#include <iostream>
using namespace std;
int oneNumberCombination(int n)
{
if (n < 10)
return n + 1;
else
return (18 - n) + 1;
}
unsigned long long allCombination(unsigned long long n)
{
if (n == 0)
return 1;
else
{
int lastDigit = n % 10;
int secondDigit = (n / 10) % 10;
if (secondDigit == 1)
{
return (oneNumberCombination(lastDigit) * allCombination(n / 10))
+ (oneNumberCombination(10 + lastDigit) * allCombination(n / 100));
}
else
{
return oneNumberCombination(lastDigit) * allCombination(n / 10);
}
}
}
int main()
{
unsigned long long n, result;
cin >> n;
result = allCombination(n);
cout << result;
}
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 | #include <iostream> using namespace std; int oneNumberCombination(int n) { if (n < 10) return n + 1; else return (18 - n) + 1; } unsigned long long allCombination(unsigned long long n) { if (n == 0) return 1; else { int lastDigit = n % 10; int secondDigit = (n / 10) % 10; if (secondDigit == 1) { return (oneNumberCombination(lastDigit) * allCombination(n / 10)) + (oneNumberCombination(10 + lastDigit) * allCombination(n / 100)); } else { return oneNumberCombination(lastDigit) * allCombination(n / 10); } } } int main() { unsigned long long n, result; cin >> n; result = allCombination(n); cout << result; } |
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