/in/foo.cc: In function 'bool sdf(T&)':
/in/foo.cc:14:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
     while(c=getchar(),47<c&&c<58)x=(x<<1)+(x<<3)+(c^48);x*=y;
     ^~~~~
/in/foo.cc:14:57: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while'
     while(c=getchar(),47<c&&c<58)x=(x<<1)+(x<<3)+(c^48);x*=y;
                                                         ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:117:14: warning: statement has no effect [-Wunused-value]
         for(l;l<en;l++){
              ^