/in/foo.cc: In function 'int main()':
/in/foo.cc:8:7: warning: variable 'e' set but not used [-Wunused-but-set-variable]
   int e,d,k,i;
       ^
/in/foo.cc:32:22: warning: 'd' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if(c[i][d]>c[k][d]) break;
                      ^