/in/foo.cc: In function 'int main()':
/in/foo.cc:26:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(strlen(string)==n){
        ~~~~~~~~~~~~~~^~~
/in/foo.cc:24:9: warning: unused variable 'rest' [-Wunused-variable]
     int rest=0;
         ^~~~