ip

#include <stdio.h>
#include <string.h>
#include <cstdlib>
int main(){
  char buf[512];
  unsigned long long ipmask;
  unsigned n=(unsigned)strtoul(fgets(buf,512,stdin),0,10);
  while(n-- && fgets(buf,512,stdin)){
    char* p=buf;
    while((p=strtok(p," "))){
      ipmask<<=8;
      ipmask|=strtoul(p,0,10);
      p=0;
    }
    unsigned long ipf=(((unsigned long*)&ipmask)[1]&*((unsigned long*)&ipmask))+1;  // +1 na adres sieci
    unsigned long ipl=(((unsigned long*)&ipmask)[1]|(~*((unsigned long*)&ipmask)))-1; // -1 na broadcast
    if(ipl>ipf){ // pierwsze ip ma byc mniejsze od ostatniego w ten sposob zalatwione maski 31 i 32 bity
      fprintf(stdout,"ilosc adresow: %lu\npierwszy adres: %d.%d.%d.%d\nostatni adres: %d.%d.%d.%d\n",(~*((unsigned long*)&ipmask))-1, // mozna jeszcze prosciej policzyc, nie potrzeba logarytmow
      ((unsigned char*)(&ipf))[3],((unsigned char*)(&ipf))[2],((unsigned char*)(&ipf))[1],((unsigned char*)(&ipf))[0],
      ((unsigned char*)(&ipl))[3],((unsigned char*)(&ipl))[2],((unsigned char*)(&ipl))[1],((unsigned char*)(&ipl))[0]);
    }else fprintf(stdout,"ilosc adresow: 0\n");
  }
  return 0;
 }