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Write a function that reads an integer and determines and prints how many digits in the integer are 7s?
Wiki User
∙ 15y ago
== ==
// Returns number of 7s in num.
int numSevens(int num) {
int _num = num;
int numSevens = 0;
while( _num > 0 ) {
if( (_num % 10) == 7 ) {
++numSevens;
}
_num /= 10;
}
return numSevens;
}
Wiki User
∙ 15y ago
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