Run id: 152857

Main.cc:7:16: error: empty character constant
     string s,b='';
                ^
Main.cc:12:15: error: empty character constant
             b='';
               ^
Main.cc: In function 'int main()':
Main.cc:9:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i