commit 147de9a0c20759d3b0c2f30c23b2dbbd8237f6c9
parent 24566f873cbeb9711ebf422c9ff351dba7c7d162
Author: Amit Dutta <amitdutta4255@gmail.com>
Date: Mon, 30 Mar 2026 17:38:42 +0530
4 in one.
Diffstat:
2 files changed, 70 insertions(+), 0 deletions(-)
diff --git a/Semester_1/practice-c/pc014.c b/Semester_1/practice-c/pc014.c
@@ -0,0 +1,63 @@
+/*
+ * Author: Amit Dutta (amitdutta4255@gmail.com) | Date: 30 Mar 2026
+ * Repo: https://github.com/notamitgamer/bsc
+ * License: MIT
+ */
+
+/* Write a c program that defines a structure Student with the following members: roll (int), name (string), and marks (float).
+ Do the below:
+ * Create an array to store details for 3 students.
+ * Read the details for these 3 student from a file named students.txt. (Assume the file contains data in the format: Roll Name Marks).
+ * Implement a recursive function float calculateTotal(struct Student arr[], int n) to calculate the sum of marks of all students in the array.
+ * Display each student's details and the total marks calculated by the recursive function.
+*/
+
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+
+#define FILENAME "students.txt"
+
+typedef struct Student {
+ int roll;
+ char name[20];
+ float marks;
+} Stu;
+
+void printDetails(Stu *, int);
+float calculateTotal(struct Student [], int);
+
+int main() {
+ FILE *input = NULL;
+ Stu stu[3];
+ int i = 0;
+
+ input = fopen(FILENAME, "r");
+ if(input == NULL) {
+ printf("\nError opening file %s. Please try again.", FILENAME);
+ exit(1);
+ }
+
+ while(i < 3 && (fscanf(input, "%d %s %f", &stu[i].roll, &stu[i].name, &stu[i].marks) == 3)) i++;
+ printDetails(stu, 3);
+ printf("\n\nTotal Marks: %g", calculateTotal(stu, 3));
+}
+
+float calculateTotal(struct Student stu[], int n) {
+ if(n == 0) {
+ return stu[n].marks;
+ }
+ float total = stu[n].marks;
+ return total + calculateTotal(stu, n-1);
+}
+
+void printDetails(Stu *stu, int n) {
+ int i;
+ printf("\n== Student Details ==");
+ for(i = 0; i < n; i++) {
+ printf("\nStudent Roll: %d"
+ "\nStudent Name: %s"
+ "\nStudent Marks: %g\n",
+ stu[i].roll, stu[i].name, stu[i].marks);
+ }
+}+
\ No newline at end of file
diff --git a/Semester_1/practice-c/students.txt b/Semester_1/practice-c/students.txt
@@ -0,0 +1,5 @@
+01 Amit_Dutta 99.0
+02 Soumojit_Paul 100.0
+03 Souvik_Baidya 99.0
+04 Aniket_De 10.0
+05 Trisha_Hazra 6.09+
\ No newline at end of file
