73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
#include <stdio.h>
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typedef struct {
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char name[50];
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int roll_no;
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char grade;
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char branch[50];
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} Student;
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void write_student_records(const char filename[], Student students[], int n) {
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FILE *file = fopen(filename, "w");
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if (file == NULL) {
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printf("Error opening file.\n");
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return;
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}
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for (int i = 0; i < n; i++) {
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fprintf(file, "%s %d %c %s\n", students[i].name, students[i].roll_no, students[i].grade, students[i].branch);
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}
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fclose(file);
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}
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void store_branchwise_records(const char filename[]) {
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FILE *file = fopen(filename, "r");
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if (file == NULL) {
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printf("Error opening file.\n");
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return;
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}
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Student student;
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char branch_filename[50];
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while (fscanf(file, "%s %d %c %s", student.name, &student.roll_no, &student.grade, student.branch) != EOF) {
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sprintf(branch_filename, "%s.txt", student.branch);
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FILE *branch_file = fopen(branch_filename, "a");
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if (branch_file == NULL) {
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printf("Error opening branch file.\n");
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continue;
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}
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fprintf(branch_file, "%s %d %c\n", student.name, student.roll_no, student.grade);
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fclose(branch_file);
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}
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fclose(file);
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}
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int main() {
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int n;
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printf("Enter the number of students: ");
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scanf("%d", &n);
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Student students[n];
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for (int i = 0; i < n; i++) {
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printf("Enter details for student %d:\n", i + 1);
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printf("Name: ");
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scanf("%s", students[i].name);
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printf("Roll No: ");
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scanf("%d", &students[i].roll_no);
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printf("Grade: ");
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scanf(" %c", &students[i].grade);
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printf("Branch: ");
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scanf("%s", students[i].branch);
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}
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write_student_records("students.txt", students, n);
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store_branchwise_records("students.txt");
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printf("Records stored branch-wise in separate files.\n");
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return 0;
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}
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