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| #include <stdio.h>
#include <stdlib.h>
#include<string.h>
struct stud_info
{
char fname[15];
char lname[15];
int rank ;
float grade;
struct stud_info* next;
};
int main ()
{
struct stud_info* newnode;
struct stud_info* link1;
struct stud_info* link2;
struct stud_info* read;
struct stud_info* read2;
struct stud_info* pre_read;
FILE * infile ;
FILE *infile1;
FILE* outfile;
infile= fopen ( "p3data.txt", "r");
infile1 = fopen("p3purge_data.txt","r");
outfile= fopen("clean_link.txt","w");
//built link1
newnode = (struct stud_info*) malloc(sizeof(struct stud_info));
newnode->next = NULL;
link1 = newnode;
fscanf(infile,"%s %s %d %f",newnode->fname,newnode->lname,&newnode->rank,&newnode->grade);
printf("%-20s %-20s %-4d %-.2f\n",link1->fname,link1->lname,link1->rank,link1->grade);
while(!feof(infile))
{
newnode = (struct stud_info*) malloc(sizeof(struct stud_info));
newnode->next = link1;
link1 = newnode;
fscanf(infile,"%s %s %d %f",newnode->fname,newnode->lname,&newnode->rank,&newnode->grade);
printf("%-20s %-20s %-4d %-8.2f\n",link1->fname,link1->lname,link1->rank,link1->grade);
}
printf("\n\n");
//built link2
newnode = (struct stud_info*) malloc(sizeof(struct stud_info));
newnode->next = NULL;
link2 = newnode;
fscanf(infile1,"%s %s %d %f",newnode->fname,newnode->lname,&newnode->rank,&newnode->grade);
printf("%-20s %-20s %-4d %-8.2f\n",link2->fname,link2->lname,link2->rank,link2->grade);
while(!feof(infile1))
{
newnode = (struct stud_info*) malloc(sizeof(struct stud_info));
newnode->next = link2;
link2 = newnode;
fscanf(infile1,"%s %s %d %f",newnode->fname,newnode->lname,&newnode->rank,&newnode->grade);
printf("%-20s %-20s %-4d %-8.2f\n",link2->fname,link2->lname,link2->rank,link2->grade);
}
read2 = link2;
read=link1;
pre_read=link1;
while(read2 != NULL)
{
read=link1;
pre_read=link1;
while(read != NULL)
{
if((strcmp(read->fname,read2->fname)==0) && (strcmp(read->lname,read2->lname)==0))
{ if(read == link1)//suppression a partir du haut
{ read = read->next;
pre_read = read;
}
if(read->next == NULL)//suppression en bas
{
pre_read->next = read->next;
read = pre_read;
}
if((read != link1)&& (read->next != NULL))//suppression au millieu { pre_read->next = read->next;
read = read->next;
}
}
else
{ pre_read = read;
read = read->next;
}
}
read2 = read2->next;
}
printf("ismmo//////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\n");
read=link1;
while(read != NULL)
{
printf("%-20s %-20s %-4d %-8.2f\n",read->fname,read->lname,read->rank,read->grade);
read = read->next;
}
read=link1;
while(read != NULL)
{
fprintf(outfile,"%-20s %-20s %-4d %-8.2f\n",read->fname,read->lname,read->rank,read->grade);
read = read->next;
}
fclose(infile);
fclose(infile1);
fclose(outfile);
return(0);
} |
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