Language: C++

#include <bits/stdc++.h>
using namespace std ;
typedef long long ll;

int main(){
    string s;cin>>s;
    ll mod1=1e+9 +7;
    int mod=13;
    int length = s.length();
    ll d[length+1][13];
    for(int i=0;i<13;i++){
        for(int j=0;j<=length;j++) d[j][i]=0;
    }
    int const=1;
    //for(int i=0;i<10;i++) d[length][i]=1;
    d[length][0]=1;

    for(int i=length;i>0;--i){
        char a = s.at(i-1);
        if(a=='?'){
            for(int j=0;j<13;j++){
                for(int k=0;k<10;k++){
                    d[i-1][(const*k+j)%mod]+=d[i][j];
                    d[i-1][(const*k+j)%mod]%=mod1;
                }                
            }
        }
        else{
            int c =s[i-1]-'0';
            for(int j=0;j<13;j++){

                d[i-1][(const*c+j)%mod]+=d[i][j];
                d[i-1][(const*c+j)%mod]%=mod1;

            }
        }


        const = const*10%mod;

    }
    cout << d[0][5]<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:14: error: expected unqualified-id before '=' token
   14 |     int const=1;
      |              ^
a.cc:23:29: error: expected primary-expression before 'const'
   23 |                     d[i-1][(const*k+j)%mod]+=d[i][j];
      |                             ^~~~~
a.cc:23:29: error: expected ')' before 'const'
   23 |                     d[i-1][(const*k+j)%mod]+=d[i][j];
      |                            ~^~~~~
      |                             )
a.cc:23:53: error: expected ']' before ';' token
   23 |                     d[i-1][(const*k+j)%mod]+=d[i][j];
      |                                                     ^
      |                                                     ]
a.cc:24:29: error: expected primary-expression before 'const'
   24 |                     d[i-1][(const*k+j)%mod]%=mod1;
      |                             ^~~~~
a.cc:24:29: error: expected ')' before 'const'
   24 |                     d[i-1][(const*k+j)%mod]%=mod1;
      |                            ~^~~~~
      |                             )
a.cc:24:50: error: expected ']' before ';' token
   24 |                     d[i-1][(const*k+j)%mod]%=mod1;
      |                                                  ^
      |                                                  ]
a.cc:32:25: error: expected primary-expression before 'const'
   32 |                 d[i-1][(const*c+j)%mod]+=d[i][j];
      |                         ^~~~~
a.cc:32:25: error: expected ')' before 'const'
   32 |                 d[i-1][(const*c+j)%mod]+=d[i][j];
      |                        ~^~~~~
      |                         )
a.cc:32:49: error: expected ']' before ';' token
   32 |                 d[i-1][(const*c+j)%mod]+=d[i][j];
      |                                                 ^
      |                                                 ]
a.cc:33:25: error: expected primary-expression before 'const'
   33 |                 d[i-1][(const*c+j)%mod]%=mod1;
      |                         ^~~~~
a.cc:33:25: error: expected ')' before 'const'
   33 |                 d[i-1][(const*c+j)%mod]%=mod1;
      |                        ~^~~~~
      |                         )
a.cc:33:46: error: expected ']' before ';' token
   33 |                 d[i-1][(const*c+j)%mod]%=mod1;
      |                                              ^
      |                                              ]
a.cc:39:15: error: expected unqualified-id before '=' token
   39 |         const = const*10%mod;
      |               ^