The problem is while i execute my code the function modifiko_note(); doesn't work in a proper way. It execute with errors.``
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<sys/stat.h>
#include<conio.h>
struct student{
char emri[20];
char mbiemri[20];
int nota[100];
int grupi;
}stud;
struct lendet{
char emri[20];
int kredite;
}lenda;
FILE *bin;
FILE *file;
void regjistro_lende();
void regjistro_student();
void regjistro_note();
void modifiko_note();
void afisho_student();
//void afisho_lende();
int nrrekordesh_lende(FILE *file);
int nrrekordesh_student(FILE *bin);
int main(){
int zgjedhje;
system("cls");
printf("\n\t1.Regjistro Lendet");
printf("\n\t2.Regjistro Studentin");
printf("\n\t3.Regjistro Notat");
printf("\n\t4.Korigjo Notat");
printf("\n\t5.Shfaq rezultatet per lende");
printf("\n\t6.Shfaq rezultatet per studente");
printf("\n\t0.Dil");
printf("\nMenu e zgjedhur");
scanf("%d",&zgjedhje);
switch(zgjedhje){
case 1:
regjistro_lende();
break;
case 2:
regjistro_student();
break;
case 3:
regjistro_note();
break;
case 4:
modifiko_note();
break;
case 5:
afisho_student();
break;
case 0:
exit(1);
break;
default:
printf("\n\nPerzgjidhni nje nga menu-te nga 1-6!");
getch();
main();
break;
}
}
void regjistro_lende(){
char pergjigje;
system("cls");
printf("\t\tMENU 'REGJISTRIM LENDESH' ");
file=fopen("lende.bin","ab");
if(!file)
printf("\n\nFile-i pati probleme ne hapje.");
else{
printf("\n\nJepni emrin e lendes:");
scanf("%s",lenda.emri);
printf("\n\nJepni kreditet e lendes");
scanf("%d",&lenda.kredite);
fwrite(&lenda,sizeof(struct lendet),1,file);
fclose(file);
printf("\n\nShtypni: \n->'p' per regjistrim te ri\n->cdo buton tjeter per tu rikthyer ne menu\n");
scanf(" %c",&pergjigje);
if(pergjigje=='p'||pergjigje=='P')
regjistro_lende();
else
main();
}
}
void regjistro_student(){
char pergjigje;
system("cls");
printf("\t\t 'REGJISTRIM STUDENTI'");
bin=fopen("student.bin","ab");
if(!bin)
printf("\n\n Skedari pati problem ne hapje");
else {
printf("\nEmri i studentit: \n");
scanf("%s", &stud.emri);
printf("\nMbiemri i studentit: \n");
scanf("%s", &stud.mbiemri);
printf("\nGrupi i studentit: \n");
scanf("%d", &stud.grupi);
fwrite(&stud,sizeof(struct student),1,bin);
fclose(bin);
printf("\n\nShtypni: \n->'p' per regjistrim te ri\n->cdo buton tjeter per menune kryesore");
scanf("%c", &pergjigje);
if (pergjigje=='p'||pergjigje=='P')
regjistro_student ();
else
main();
}
}
int nrrekordesh_lende(FILE *file){
struct stat st;
stat("lende.bin", &st);
int size = st.st_size;
return size/sizeof(struct lendet);
}
int nrrekordesh_student(FILE *bin){
struct stat st;
stat("student.bin", &st);
int size = st.st_size;
return size/sizeof(struct student);
}
void regjistro_note(){
int i,j;
file=fopen("lende.bin","rb");
bin=fopen("student.bin","r+b");
if(!file||!bin)
printf("U ndeshen probleme ne hapje");
else{
int nr_lende=nrrekordesh_lende(file);
int nr_student=nrrekordesh_student(bin);
for(i=0;i<nr_lende;i++){
fseek(file,sizeof(struct lendet)*i,SEEK_SET);
fread(&lenda,sizeof(struct lendet),1,file);
printf("\n\n\tLenda: %s",lenda.emri);
for(j=0;j<nr_student;j++){
fseek(bin,sizeof(struct student)*j,SEEK_SET);
fread(&stud,sizeof(struct student),1,bin);
printf("\nEmri: %s",stud.emri);
printf("\nMbiemri: %s",stud.mbiemri);
printf("\nJepni noten: ");
scanf("%d",&stud.nota[i]);
fwrite(&stud,sizeof(struct student),1,bin);
}
}
fclose(file);
fclose(bin);
main();
}
}
void modifiko_note(){
char p_emri[20], p_mbiemri[20], p_lenda[20];
char pergj,pergjigje;
bin=fopen("student.bin","r+b");
file=fopen("lende.bin","rb");
if (!file&&!bin)
printf ("Pati probleme ne hapje");
else{
printf("\nJepnni emrin e studentit:");
scanf("%s", p_emri);
printf("\nJepni mbiemrin e studentit: ");
scanf("%s", p_mbiemri);
int nr_student=nrrekordesh_student(bin);
int nr_lende=nrrekordesh_lende(file);
for (int i=0;i<nr_student;i++){
fseek(bin,sizeof(struct student)*i, SEEK_SET);
fread(&stud, sizeof(struct student),1,bin);
if(strcmp(p_emri,stud.emri)==0&&strcmp(p_mbiemri,stud.mbiemri)==0)
{
printf("\n\n");
printf("Emri: %s\n", stud.emri);
printf("Mbiemri: %s\n", stud.mbiemri);
printf("Grupi: %d\n", stud.grupi);
printf("\nCilen lende doni te modifikoni?\n");
scanf("%s", &p_lenda);
printf ("Nota ekzistuese %d", stud.nota);
int k;
for(int j=1;j<nr_lende;j++)
{
fseek(file,sizeof(struct lendet)*j, SEEK_SET);
fread(&lenda, sizeof(struct lendet),1,file);
k=j;
printf("\n\nVendosni noten e korigjuar");
scanf("%d", &stud.nota[k]);
}
}
}
fclose(file);
fclose(bin);
}
printf("\nShtypni p nese deshironi te beni modifikime te tjera");
scanf("%c", &pergjigje);
if (pergjigje=='p'||pergjigje=='P')
modifiko_note();
else
main();
}
void afisho_student(){
file=fopen("lende.bin","rb");
bin=fopen("student.bin","rb");
char p_emri[20],p_mbiemri[20];
char pergjigje;
if(!file&&!bin)
printf("\nU hasen probleme ne hapje");
else{
printf("\nJepni emrin e studentint: ");
scanf("%s",p_emri);
printf("\nJepni mbiemrin e studentit: ");
int nr_student=nrrekordesh_student(bin);
int nr_lende=nrrekordesh_lende(file);
for(int i=0;i<nr_student;i++){
fseek(bin,sizeof(struct student)*i,SEEK_SET);
fread(&stud,sizeof(struct student),1,bin);
if(strcmp(p_emri,stud.emri)==0&&strcmp(p_mbiemri,stud.mbiemri==0)){
printf("\n\n");
printf("Emri: %s\n",stud.emri);
printf("Mbiemri: %s\n",stud.mbiemri);
printf("Grupi: %d\n",stud.grupi);
for(int i=0;i<nr_lende;i++){
fseek(file,sizeof(struct lendet)*i,SEEK_SET);
fread(&lenda,sizeof(struct lendet),1,file);
printf("\nLenda: ",lenda.emri);
printf("\nNota ",stud.nota[i]);
}
fclose(bin);
fclose(file);
}
printf("\nShtypni p per te kerkuar nje student tjeter");
scanf("%c",&pergjigje);
if(pergjigje=='p'||pergjigje=='P')
afisho_student();
else
main();
}
}
}
