/in/foo.cc: In function 'int main()':
/in/foo.cc:22:8: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   else if(v=='C')
        ^~
/in/foo.cc:24:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
    a[r]=l; 
    ^