#include<stdio.h>
#include<string.h>
#include <unistd.h>
#include<sys/wait.h>
#include<sys/types.h>

int main(int argc, char*argv[]){
 if(argc!=2){
   if(argc==1){
     fprintf(stderr,"Wymagany tylko jeden argument! \n");
     return 1;
    }
else{
   fprintf(stderr,"Tylko jeden argument dozwolony! \n");
  }
  return 1;
   }
else if (strlen(argv[1])>20){
   fprintf(stderr,"Argument musi mieć <20 znaków! \n");
   return 1;
  }
int len=strlen(argv[1]);
if(len==1){
  char c=argv[1][0];
  printf("Wartość ASCII argumentu %c to: %d \n",c,c);
  return c;
 }
else
{
char part11[10];
char part22[10];
if(len%2==0){
int nlen=len/2;
char part1[nlen];
part1[nlen]='\0';
char part2[nlen];
part2[nlen]='\0';
for(int i=0;i<nlen;i++){
part1[i]=argv[1][i];
part2[i]=argv[1][i+nlen];
memcpy(part11,part1,sizeof(part11));
memcpy(part22,part2,sizeof(part22));
}

}
else{
 int slen=len/2;
 int llen=slen+1;
 char part1[slen];
part1[slen]='\0';
 char part2[llen];
part2[llen]='\0';
  for(int i=0;i<slen;i++){
   part1[i]=argv[1][i];
  }
  for(int i=0;i<llen;i++){
 for(int j=slen;j<llen;j++){
  part2[i]=argv[1][j+i];
}
  }
memcpy(part11,part1,sizeof(part11));
memcpy(part22,part2,sizeof(part22));

}
int exit1,exit2;
int child1=fork();
if(child1>0){
int child2=fork();
if(child2>0){
int status1, chPid1 =waitpid(child1,&status1,0);
int status2, chPid2 =waitpid(child2,&status2,0);
exit1=WEXITSTATUS(status1);
exit2=WEXITSTATUS(status2);
printf("%d %d %s %c \n", getpid(), child1, part11, exit1);
printf("%d %d %s %c \n", getpid(), child2, part22, exit2);
}
else{
execlp("./program3","./program3",part22, NULL);
}
}
else{
execlp("./program3","./program3",part11, NULL);
}
if(exit1>exit2){
return exit1;
}
else{
return exit2;
}

}
return 0;
}