View Compilation Error

0_0_39763244_21341.cpp: In function 'int main()':
0_0_39763244_21341.cpp:21:40: error: lvalue required as left operand of assignment
   21 |                                 if(x>=2&&flag=1)printf("\n");
      |                                    ~~~~^~~~~~
0_0_39763244_21341.cpp:28:2: error: expected '}' at end of input
   28 | }
      |  ^
0_0_39763244_21341.cpp:3:11: note: to match this '{'
    3 | int main(){
      |           ^