/in/foo.cc: In function 'int main()':
/in/foo.cc:8:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    8 |         for(int i=L;i<=R;i++)
      |         ^~~
/in/foo.cc:10:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   10 |                 int su=0;
      |                 ^~~
/in/foo.cc:9:21: warning: unused variable 'nu' [-Wunused-variable]
    9 |                 int nu=i;
      |                     ^~
/in/foo.cc:18:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   18 |         if(m==5)
      |         ^~
/in/foo.cc:20:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   20 |                 b+=i;
      |                 ^
/in/foo.cc:20:20: error: 'i' was not declared in this scope
   20 |                 b+=i;
      |                    ^
/in/foo.cc:10:21: warning: unused variable 'su' [-Wunused-variable]
   10 |                 int su=0;
      |                     ^~