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  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4. #include <assert.h>
  5. using namespace std;
  6. unsigned long long convertStrintToInt(string s)
  7. {
  8.     int l=s.length()-1;
  9.     unsigned long long num=0;
  10.     int dig=1;
  11.     while(l>=0)
  12.     {
  13.         int c=1;
  14.         assert(s[l]>='0'&&s[l]<='9');
  15.  
  16.         num+=(s[l]-48)*dig;
  17.         dig*=10;
  18.         l--;
  19.     }
  20.     // For TEST
  21.     //long long cpy=stoi(s);
  22.     //assert(num==cpy);
  23.  
  24.     return num;
  25. }
  26. string add9999(string s)
  27. {
  28.     unsigned long long num=convertStrintToInt(s);
  29.     return to_string((num+9999));
  30. }
  31. int main() {
  32. 	string s;
  33. 	cin>>s;
  34. 	cout<<add9999(s);
  35. 	return 0;
  36. }
Success #stdin #stdout 0.01s 5280KB
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18446744073497742455
https://ideone.com/fM0skX
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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