/in/foo.cc: In function 'int main()':
/in/foo.cc:11:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(prime[i])
   ^~
/in/foo.cc:14:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
    for(int j=l;j<=r;j+=i)
    ^~~