View Compilation Error

0_0_39493412_20222.cpp: In function 'void solve()':
0_0_39493412_20222.cpp:18:25: error: 'flag' was not declared in this scope; did you mean 'flag1'?
   18 |                         flag=a;
      |                         ^~~~
      |                         flag1
0_0_39493412_20222.cpp:25:12: error: 'flag' was not declared in this scope; did you mean 'flag1'?
   25 |         if(flag<L){
      |            ^~~~
      |            flag1