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  1. #include"bits/stdc++.h"
  2. using namespace std;
  3. int main()
  4. {
  5.     int a,b,k=0;
  6.     string s;
  7.     cin>>a>>b;
  8.     cin>>s;
  9.     k=a+b+1;
  10.     if(!(s.size()==k))
  11.     {
  12.         cout<<"No";
  13.         return 0;
  14.     }
  15.  
  16.  
  17.     for(int i=0;i<s.size();i++)
  18.     {
  19.  
  20.         if(!(s[i]>='0' && s[i]<='9'))
  21.         {
  22.             cout<<"No";
  23.             return 0;
  24.         }
  25.     } 
  26.     if(s[a+1]!='-')
  27.     {
  28.     	cout<<"No";return 0;
  29.     }
  30.     cout<<"Yes";
  31. }
  32.  
Success #stdin #stdout 0s 4556KB
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stdin
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3 4
269-6650
stdout
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No
https://ideone.com/rcFozG
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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