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c_cpp
2 years ago
275 B
5
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#include <iostream>
using namespace std;
int digitSum(int k)
{
if (k == 0)
{
return 0;
}
else
{
return k % 10 + digitSum(k / 10);
}
}
int main()
{
int k;
cin >> k;
cout << digitSum(k);
return 0;
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