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  1. #include <iostream>
  2. #include <algorithm>
  3.  
  4. int max_number(int value) {
  5.   int max_number_value = 0;
  6.   while (value) {
  7.     max_number_value = std::max(max_number_value, value % 10);
  8.     value /= 10;
  9.   }
  10.   return max_number_value;
  11. }
  12.  
  13. int main() {
  14.   int value = 78421;
  15.   std::cout << "max number is: " << max_number(value);
  16. }
  17.  
Success #stdin #stdout 0s 3140KB
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stdin
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Standard input is empty
stdout
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max number is: 8
https://ideone.com/CqFnZF
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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