Count certain characters in one cell

[Flashmus]

Hey!

Would like some help with counting certain characters in a one cell.

3312221133111

1. Would like to count certain character combination in the string above. The combination I would like to search for is how many times "11" appears.
For me is should be 3 times. First 11 then the 111 contains "11" two times.

"11" = 3 times
"22" = 2 times
"33" = 2 times

2. Would also try to count occurrences of "1". It should count just one time even tho its a single(1), double(11) or tripple(111) and so on.
Here I would like it to count 3 in the string above.

1 = 3 times
2 = 1 time
3 = 2 times

 

[52779]

Hi,
as an alternative solution

Cell D3

=LET(a,MID(B2,SEQUENCE(LEN(B2)),2),b,REPT(SORT(UNIQUE(MID(B2,SEQUENCE(LEN(B2)),1))),2),HSTACK(b,MAP(b,LAMBDA(x,SUM(--(a=x))))))

Cell J3

=LET(a,MID(B2,SEQUENCE(LEN(B2)),1),b,FILTER(a,1=SCAN(1,SEQUENCE(LEN(B2)),LAMBDA(x,y,IF(y=1,x,IF(INDEX(a,y-1)=INDEX(a,y),x+1,1))))),c,SORT(UNIQUE(a)),HSTACK(c,MAP(c,LAMBDA(x,SUM(--(b=x))))))

 

[Flashmus]

Solution found by Phouc, THX!
1. =SUMPRODUCT((MID(A1;SEQUENCE(LEN(A1));2)="11")*1)

2. =SUMPRODUCT((MID(A1;SEQUENCE(LEN(A1));1)="1")*(MID(A1&" ";SEQUENCE(LEN(A1))+1;1)<>"1"))

Havent tried the solution by 52779