From a8b946505a078454a52b54eaafbd4cf08abddacb Mon Sep 17 00:00:00 2001
From: JOYSTON <116254639+Joystonm@users.noreply.github.com>
Date: Tue, 14 Oct 2025 09:43:12 +0530
Subject: [PATCH] c

---
 C/Tariff_Calculation.c | 115 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 C/Tariff_Calculation.c

diff --git a/C/Tariff_Calculation.c b/C/Tariff_Calculation.c
new file mode 100644
index 00000000..ebe06590
--- /dev/null
+++ b/C/Tariff_Calculation.c
@@ -0,0 +1,115 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+struct Consumer {
+    char name[50];
+    char type;      
+    int time;       
+    double energy;  
+    double tariff;  
+};
+
+void calculateTariff(struct Consumer *consumer) {
+    consumer->tariff = 0.0;
+
+    if (consumer->type == 'D') {
+        consumer->tariff = 0.1 * consumer->energy;
+    } else if (consumer->type == 'I') {
+        consumer->tariff = 0.15 * consumer->energy;
+    } else {
+        printf("Invalid consumer type for %s.\n", consumer->name);
+    }
+
+    if (consumer->time >= 9 && consumer->time <= 17) {
+        consumer->tariff += 0.05 * consumer->energy;
+    } else {
+        consumer->tariff += 0.03 * consumer->energy;
+    }
+}
+
+int main() {
+    int numConsumers;
+    printf("Enter the number of consumers: ");
+    scanf("%d", &numConsumers);
+
+    struct Consumer *consumers = (struct Consumer *)malloc(numConsumers * sizeof(struct Consumer));
+    if (consumers == NULL) {
+        printf("Memory allocation failed. Exiting...\n");
+        return 1;
+    }
+
+    for (int i = 0; i < numConsumers; i++) {
+        printf("Enter consumer %d information:\n", i + 1);
+        printf("Name: ");
+        scanf("%s", consumers[i].name);
+        printf("Type (D for domestic, I for industrial): ");
+        scanf(" %c", &consumers[i].type); 
+        printf("Time (in hours): ");
+        scanf("%d", &consumers[i].time);
+        printf("Energy consumed (in kWh): ");
+        scanf("%lf", &consumers[i].energy);
+
+        calculateTariff(&consumers[i]);
+    }
+
+    int choice;
+    while (1) {
+        printf("\nMenu:\n");
+        printf("1. View Consumer Information\n");
+        printf("2. Update Consumer Information\n");
+        printf("3. Delete Consumer Information\n");
+        printf("4. Exit\n");
+        printf("Enter your choice: ");
+        scanf("%d", &choice);
+
+        switch (choice) {
+            case 1: // View Consumer Information
+                printf("Enter the consumer number to view (1 to %d): ", numConsumers);
+                int viewIndex;
+                scanf("%d", &viewIndex);
+                if (viewIndex >= 1 && viewIndex <= numConsumers) {
+                    struct Consumer consumer = consumers[viewIndex - 1];
+                    printf("Consumer Information:\n");
+                    printf("Name: %s, Type: %c, Tariff: $%.2lf\n", consumer.name, consumer.type, consumer.tariff);
+                } else {
+                    printf("Invalid input. Please enter a valid consumer number.\n");
+                }
+                break;
+
+            case 2: // Update Consumer Information
+                printf("Enter the consumer number to update (1 to %d): ", numConsumers);
+                int updateIndex;
+                scanf("%d", &updateIndex);
+                if (updateIndex >= 1 && updateIndex <= numConsumers) {
+                    struct Consumer *consumer = &consumers[updateIndex - 1];
+                    printf("Update Consumer Information for %s:\n", consumer->name);
+                    // Prompt user to update fields like type, time, energy, etc.
+                    // Then recalculate tariff using calculateTariff function.
+                } else {
+                    printf("Invalid input. Please enter a valid consumer number.\n");
+                }
+                break;
+
+            case 3: // Delete Consumer Information
+                printf("Enter the consumer number to delete (1 to %d): ", numConsumers);
+                int deleteIndex;
+                scanf("%d", &deleteIndex);
+                if (deleteIndex >= 1 && deleteIndex <= numConsumers) {
+                    // Implement code to delete the selected consumer, which may require shifting elements in the array.
+                    // Be sure to free any memory if needed.
+                } else {
+                    printf("Invalid input. Please enter a valid consumer number.\n");
+                }
+                break;
+
+            case 4: // Exit
+                free(consumers); // Free dynamically allocated memory
+                return 0;
+
+            default:
+                printf("Invalid choice. Please select a valid option.\n");
+        }
+    }
+
+    return 0;
+}