Hello! The document seems to be protected. I requested for permission.
Why are you returning the name of the function? You have to return the output of the function to the caller :
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int power(int number, int raise)
{
int result = number;
for(int i = 0; i < raise - 1; i++)
result = result * number; // this happens "raise - 1" number of times times
return result;
}