Main.cc: In function 'int main()':
Main.cc:6:5: error: 'gets' was not declared in this scope; did you mean 'fgets'?
    6 |     gets(a);
      |     ^~~~
      |     fgets
Main.cc:7:9: error: conflicting declaration 'int a'
    7 |     int a,b=0;
      |         ^
Main.cc:5:10: note: previous declaration as 'char a [10000]'
    5 |     char a[10000];
      |          ^
Main.cc:8:15: error: incompatible types in assignment of 'size_t' {aka 'long unsigned int'} to 'char [10000]'
    8 |     a=strlen(a);
      |               ^
Main.cc:9:19: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    9 |     for(int i=0;i<a;i++)
      |                   ^
Main.cc:11:41: error: lvalue required as left operand of assignment
   11 |         if(a[i]='Q'&&a[i+1]='A'&&a[i+2]='Q') b++;
      |                                         ^~~