WHY my solution is giving wa for DIGJUMP where ive tried all the test cases

please help i am fed up
please can you provide a test casee`
#include
#include
#include
using namespace std;
int mat[10][10];
map<int,int>m;
void update(int a){
//cout<<“yes”<<a;
int i;
for(i=0;i<10;i++)
{
if(m[i]>mat[i][a]+m[a]+1)
{
m[i]=1+mat[i][a]+m[a];
update(i);
}
}
}
int main(){
for(int o=0;o<10;o++)
for(int p=0;p<10;p++)
mat[o][p]=30;
char ch;
ch=getchar();

int i;
for(int i=0;i<=9;i++)
m[i]=40;
int current=0;
int a=ch-48;
m[a]=1;
ch=getchar();
i=0;
int arr[100000];
arr[i]=a;
i++;
while(ch!='\n'){
                int a=ch-48;
                if(i>2)
                if(arr[i-1]==a&&arr[i-2]==a)
                goto A;
                else
                arr[i]=a;
                else
                arr[i]=a;
                current++;
                if(m[a]<=current){
                current=m[a];
                update(a);
                }
                else
                m[a]=current+1;
                for(int j=1;j<40&&i-j>-1;j++)
                {
                        if(mat[arr[i-j]][a]>j)
                        {
                                              mat[arr[i-j]][a]=j;
                                              mat[a][arr[i-j]]=j;
                        }
                        if(m[arr[i-j]]>(1+current+j))
                        {
                                                     m[arr[i-j]]=(current+j+1);
   //                                                  cout<<"A"<<a<<"IJ"<<i-j;
                                                     update(arr[i-j]);
                        }
                }i++;
                A:;
                ch=getchar();
                
                }
printf("%d\n",current);

cin.get();

}

//01982872437567701452
//112233445566778899
//11223344556677-
//988991211223364779911223365482223489-3
//1155334411335533774477226688-11
//99887766446688776655334455697755887554-5
//099887766554433223300885577-5
//016273849567165299885-5
//
`

A way to answer this type of question yourself:

result\_type your\_solution(input\_data){
  ...
}
result\_type some\_AC\_solution(input\_data){
  ...
}
int main(){
  result\_type result1, result2;
  while(1){
    Generate random input data
    result1 = your_solution(random\_input);
    result2 = some\_AC\_solution(random\_input);
    if(result1 != result2){
       print the incongruent test case that was randomly generated
       break;
    }
  }
  // figure out what you did wrong
}

ive already done that its not working all the answers are matching still mine is a WA plz give a test case i can give you the ideone link if you want

//