PRG29003-2022-1-02

1. include <stdio.h>
2. include <string.h>

int main(){

  char alfa[50]="alo   mundo cruel  !!";
  int i,j,tam,first;
 
  first=0;
  i=0;
  j=0;
  while (alfa[i]!='\0') {
      if (alfa[i]!=' ') {
         alfa[j] = alfa[i]; /* regra geral - copia */
         j++; 
         first=1;
      } else if (first==1){
           alfa[j] = alfa[i]; /* copia */
           first=0;
           j++;
      }
      i++;
  }
  if (j!=0 && alfa[j-1] == ' ')
     alfa[j-1]='\0';
  else
     alfa[j]=0;
  printf("string: %s\n", alfa);     
  return 0;

}