Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE room (blockfloor VARCHAR, blockcode VARCHAR)
TABLE: CREATE TABLE BLOCK (blockcode VARCHAR, blockfloor VARCHAR)

### Question ###
Find the number of rooms for different block code?

### Accurate SQL ###

SELECT COUNT(*), T1.blockcode FROM BLOCK AS T1 JOIN room AS T2 ON T1.blockfloor = T2.blockfloor AND T1.blockcode = T2.blockcode GROUP BY T1.blockcode