קוד:

 

# include <stdio.h>

# include <malloc.h>
# include <string.h>
# include <stdlib.h>

# define ARR_SIZE 100


struct CD;

typedef struct
{
	 char *songName;
	 unsigned int minutes;
	 unsigned int seconds;
	 struct CD *cdSource;
	 struct Song *nextSong;
} Song;

typedef struct
{
	 struct Artist *artist;
	 char *cdTitle;
	 struct Song **song;
	 unsigned int songsNum;
} CD;

typedef struct
{
	 char *artistName;
	 struct CD **cd;
	 int numOfCd;
} Artist;

typedef struct
{
	 struct CD **cd;
	 unsigned int cdTotal;
	 struct Artist **artist;
	 unsigned int ArtistsNum;
	 struct Song *song;	 
} Store;

typedef struct 
{
	 Song song;
	 struct node *next;
} Node;


void initial(char **songLength,char **title,char *cdTitle,char *artistName,int songsTotal,CD *cd);


int main ()
{
	 Store *store;
	 CD *cd;
	 Artist *artist;
	 Node *head;
	 int option,songsTotal,stop,j=0,i,k;
	 char **songLength=NULL,**title=NULL,*cdTitle,*artistNam   e,temp[ARR_SIZE],temp2[100][100],temp1[100][100];


	 while (option!=7)
	 {	 scanf("%d\n",&option);
			switch (option)
			{
				 case 1: 
						gets(temp);
						cdTitle=malloc(strlen(temp)*sizeof(char));
						strcpy(cdTitle,temp);
				 //	puts(cdTitle);
						temp[0]=NULL;	 
						gets(temp);
								artistName=malloc(strlen(temp)*sizeof(char));
								strcpy(artistName,temp);
				 //	puts(artistName);
						temp[0]=NULL;				 
						scanf("%d",&songsTotal);	 
				 //	printf("%d\n",songsTotal);
						songLength=(char **) calloc(songsTotal, sizeof(char *));
						title=(char **) calloc(songsTotal, sizeof(char *));
						stop=2*songsTotal;
						for (i=0;i<=stop;i++)
						{	 
							 gets(temp);
							 if ((i%2)==0)
							 {	 songLength[j]=(char *) malloc(strlen(temp)+1);
									for (k=0;k<=strlen(temp);k++)
										 songLength[j][k]=temp[k];
									songLength[j][k]=0;	 
									temp[0]=NULL;
									j++;

							 }

							 else if ((i%2)==1)
							 {	 title[i-j]=(char *) malloc(strlen(temp)+1); 
									for (k=0;k<=strlen(temp);k++)
														title[i-j][k]=temp[k];
											  title[i-j][k]=0;
												temp[0]=NULL;
							 }
						}

						for (i=0;i<songsTotal;i++)
						{	 for (j=0;title[i][j]!='\0';j++)
							 {
									printf("%c",title[i][j]);
							 }
							 printf("\n");
						}

						break;

				 case 2:
						break;

				 case 3:
						break;

				 case 4:
						break;

				 case 5:
						break;

				 case 6:
						break;

				 case 7:
						break;

				 default:
						printf("error\n");

			}	 
	 }	 

	 return 0;


}



void initial(char **songLength,char **title,char *cdTitle,char *artistName,int songsTotal,CD *cd)
{
	 int i=0,j,k,digit,num;
	 cd[i].artist=malloc(strlen(artistName)*sizeof(char));
	 strcpy(cd[i].artist,artistName);
	 cd[i].cdTitle=malloc(strlen(cdTitle)*sizeof(char));
	 strcpy(cd[i].cdTitle,cdTitle);
	 cd[i].songsNum=malloc(strlen(songsTotal)*sizeof(char));   
	 strcpy(cd[i].songsNum,songsTotal);
	 cd[i].song=(char **) calloc(songsTotal, sizeof(char *));
	 for(j=0;j<songsTotal;j++)
	 {	 cd[i]->song[j]->songName=malloc(strlen(cdTitle[j])*sizeof(char));
			strcpy(cd[i]->song[j]->songName,cdTitle[j]);
			for (k=0;k<5;k++)
			{	 
				 if (k<2)
				 {
						digit=songLength[j][k]-48;
						num=num*10+digit;
						cd[i]->song[j]->minutes=num;
				 }

				 if (k>2)
				 {
								digit=songLength[j][k]-48;
								num=num*10+digit;
								cd[i]->song[j]->seconds=num;
						}
			}

			cd[i]->song[j]->cdSource=&cd[i];
			if (j<songsTotal-1)
				 cd[i]->song[j]->nextSong=&cd[i]->song[j+1];
	 i++;
	 }
}