everest% cc -o majority majority.c
everest% 

everest% majority aba
a is the majority character
everest% 

everest% majority abc
No majority character
everest% 

everest% majority ab
No majority character
everest% 

everest% majority abbacabaadcaa
a is the majority character
everest% 

everest% majority "  a   a da k  a c"
  is the majority character
everest% 

everest% majority ababaaaca
a is the majority character
everest%