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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. long toNum (string s)
  6. {
  7.     long S = 0;
  8.     for (int i=0; i<s.length(); i++)
  9.     {
  10.         int tmp = s[i] - '0';
  11.         S = S*10 + tmp;
  12.     }
  13.     return S;
  14. }
  15.  
  16. string toString (long x)
  17. {
  18.     string s = "";
  19.     while (1)
  20.     {
  21.         char tmp = x%10 + '0';
  22.         x /= 10;
  23.         s = tmp + s;
  24.         if (x==0) break;
  25.     }
  26.     return s;
  27. }
  28.  
  29. string del_0 (string s)
  30. {
  31.     while (1)
  32.     {
  33.         int vt = s.length()-1;
  34.         while (s[vt]!='0' && vt>=0) vt--;
  35.         if (vt>=0)
  36.             s.erase(s.begin()+vt, s.begin()+vt+1);
  37.         else
  38.             break;
  39.     }
  40.     return s;
  41. }
  42.  
  43. int main ()
  44. {
  45.     string a, b;
  46.     cin>>a>>b;
  47.  
  48.     long num_a = toNum (a);
  49.     long num_b = toNum (b);
  50.     long VT = toNum (del_0 (toString (num_a+num_b)));    //  (num_a+num_b) long -> string -> (delete 0) string -> long
  51.  
  52.     long num_a_not0 = toNum (del_0 (a));
  53.     long num_b_not0 = toNum (del_0 (b));
  54.     long VP = num_a_not0 + num_b_not0;
  55.  
  56.     if (VT==VP) cout<<"YES";
  57.     else cout<<"NO";
  58.  
  59.     return 0;
  60. }
Success #stdin #stdout 0s 4360KB
comments (?)
stdin 
105

106
stdout 
NO
https://ideone.com/0M7fQk
v- P163PROD - ROUND 3D - Nếu cuộc sống không có số 0
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
secret

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