Scenario-Based Coding Questions on Loops in C

#include <stdio.h>
int main() {
    int hours;
    int initial_toys;
    int total_toys = 0;
    printf("Enter the number of operating hours: ");
    scanf("%d", &hours);
    printf("Enter the initial number of toys produced in the first hour: ");
    scanf("%d", &initial_toys);
    for (int i = 1; i <= hours; i++) {
        total_toys += initial_toys;
        initial_toys += 2;
    }
    printf("Total toys produced: %d\n", total_toys);
    return 0;
}

#include <stdio.h>
int main() {
    int days;
    int pages_read_today;
    int total_pages = 0;
    printf("Enter the number of reading days: ");
    scanf("%d", &days);
    for (int i = 1; i <= days; i++) {
        printf("Enter the pages read on day %d: ", i);
        scanf("%d", &pages_read_today);
        total_pages += pages_read_today;
    }
    printf("Total number of pages read: %d\n", total_pages);
    return 0;
}

#include <stdio.h>
int main() {
    int target_candies;
    int current_candies = 0;
    int candies_added = 1;
    printf("Enter the target number of candies: ");
    scanf("%d", &target_candies);
    while (current_candies < target_candies) {
        printf("%d more candies added to the jar\n", candies_added);
        current_candies += candies_added;
        candies_added *= 2;
    }
    printf("The candy jar is full!\n");
    return 0;
}

#include <stdio.h>
int main() {
    int first_number;
    int entries;
    printf("Enter the first number of the sequence: ");
    scanf("%d", &first_number);
    printf("Enter the total number of entries: ");
    scanf("%d", &entries);
    for (int i = 0; i < entries; i++) {
        printf("%d ", first_number);
        first_number += 3;
    }
    printf("\nThe treasure chest opens!");
    return 0;
}

#include <stdio.h>
int main() {
    int energy_available;
    int checkpoints = 0;
    int checkpoint_number = 1;
    printf("Enter the initial energy level: ");
    scanf("%d", &energy_available);
    while (energy_available >= checkpoint_number * checkpoint_number) {
        energy_available -= checkpoint_number * checkpoint_number;
        checkpoints++;
        printf("Checkpoint %d passed, remaining energy: %d\n", checkpoint_number, energy_available);
        checkpoint_number++;
    }
    printf("The robot passed %d checkpoints before running out of energy.\n", checkpoints);
    return 0;
}

#include <stdio.h>
int main() {
    int input;
    int river = 0;
    int mountain = 0;
    int forest = 0;
    int desert = 0;

    while (1) {
        printf("\nChoose a path type:\n");
        printf("1. River\n");
        printf("2. Mountain\n");
        printf("3. Forest\n");
        printf("4. Desert\n");
        printf("5. Stop\n");
        printf("Enter your choice: ");

        scanf("%d", &input);

        if (input == 5) {
            break;
        }
        else if (input == 1) {
            river++;
        }
        else if (input == 2) {
            mountain++;
        }
        else if (input == 3) {
            forest++;
        }
        else if (input == 4) {
            desert++;
        }
        else {
            printf("Invalid input '%d' ignored.\n", input);
        }
    }

    printf("\nPath Counts:\n");
    printf("River: %d\n", river);
    printf("Mountain: %d\n", mountain);
    printf("Forest: %d\n", forest);
    printf("Desert: %d\n", desert);

    char most_encountered = 'R';
    int max_count = river;

    if (mountain > max_count) {
        most_encountered = 'M';
        max_count = mountain;
    }
    if (forest > max_count) {
        most_encountered = 'F';
        max_count = forest;
    }
    if (desert > max_count) {
        most_encountered = 'D';
        max_count = desert;
    }

    char least_encountered = 'R';
    int min_count = river;

    if ((mountain < min_count && mountain > 0) || min_count == 0) {
        least_encountered = 'M';
        min_count = mountain;
    }
    if ((forest < min_count && forest > 0) || min_count == 0) {
        least_encountered = 'F';
        min_count = forest;
    }
    if ((desert < min_count && desert > 0) || min_count == 0) {
        least_encountered = 'D';
        min_count = desert;
    }

    printf("\nMost encountered path: %c (%d times)\n", most_encountered, max_count);
    printf("Least encountered path: %c (%d times)\n", least_encountered, min_count);
    printf("Path analysis complete!\n");

    return 0;
}

#include <stdio.h>

int main() {
    int artifact_id;

    printf("Enter artifact ID: ");
    scanf("%d", &artifact_id);

    printf("Reversed ID: ");
    while (artifact_id > 0) {
        int digit = artifact_id % 10;
        printf("%d", digit); 
        artifact_id = artifact_id / 10; 
    }

    printf("\nReversal complete!\n");
    return 0;
}

#include <stdio.h>

int main() {
    int total_rooms;
    int total_keys = 0;
    const int escape_keys = 3;
    int room_status;

    printf("Enter the total number of rooms: ");
    scanf("%d", &total_rooms);

    for (int i = 1; i <= total_rooms; i++) {
        printf("Enter the status of room %d (1 for key, 0 for empty, -1 for trap): ", i);
        scanf("%d", &room_status);

        if (room_status == 1) {
            total_keys++;
            printf("Room %d: Found a key! Total keys: %d\n", i, total_keys);
            if (total_keys == escape_keys) {
                printf("3 keys collected! Escaped the dungeon!\n");
                return 0;
            }
        }
        else if (room_status == -1) {
            total_keys = 0;
            printf("Room %d: Trap triggered! Keys reset to 0.\n", i);
        }
        else if (room_status == 0) {
            printf("Room %d: Empty room.\n", i);
        } 
        else {
            printf("Invalid input for room %d. Please enter 1, 0, or -1.\n", i);
        }
    }

    printf("Failed to escape the dungeon! Total keys collected: %d\n", total_keys);
    return 0;
}

#include <stdio.h>

int main() {
    int total_numbers;
    int shift;
    int encrypted;
    int decrypted;

    printf("Enter the total number of encrypted numbers: ");
    scanf("%d", &total_numbers);

    printf("Enter the initial shift value: ");
    scanf("%d", &shift);

    for (int i = 1; i <= total_numbers; i++) {
        printf("\nEnter encrypted number %d: ", i);
        scanf("%d", &encrypted);
        
        decrypted = encrypted - shift;
        printf("Decrypted number: %d", decrypted);

        shift++; 
    }

    printf("\nDecryption complete!\n");
    return 0;
}

#include <stdio.h>
int main() {
    int total_transactions;
    int accessories_total = 0;
    int food_total = 0;
    int toys_total = 0;
    int category;
    int quantity;
    printf("Enter the total number of sales transactions: ");
    scanf("%d", &total_transactions);
    for (int i = 0; i < total_transactions; i++) {
        printf("Enter category (1 for accessories, 2 for food, 3 for toys): ");
        scanf("%d", &category);
        printf("Enter quantity sold: ");
        scanf("%d", &quantity);
        if (category == 1) {
            accessories_total += quantity;
        }
        else if (category == 2) {
            food_total += quantity;
        }
        else if (category == 3) {
            toys_total += quantity;
        }
        else {
            printf("Invalid category. Skipping this transaction.\n");
        }
    }

    printf("Summary of items sold:\n");
    printf("Accessories: %d\n", accessories_total);
    printf("Food: %d\n", food_total);
    printf("Toys: %d\n", toys_total);

    return 0;
}

#include <stdio.h>

int main() {
    int total_stops;
    int current_stop = 1;
    float budget, total_expenses = 0, food, lodging, fuel;
    float total_food = 0, total_lodging = 0, total_fuel = 0;

    printf("Enter the total number of stops: ");
    scanf("%d", &total_stops);

    printf("Enter the trip budget: ");
    scanf("%f", &budget);

    while (current_stop <= total_stops) {
        printf("\nStop %d:\n", current_stop);

        printf("Enter food expenses: ");
        scanf("%f", &food);

        printf("Enter lodging expenses: ");
        scanf("%f", &lodging);

        printf("Enter fuel expenses: ");
        scanf("%f", &fuel);

        float stop_expenses = food + lodging + fuel;
        total_expenses += stop_expenses;

        total_food += food;
        total_lodging += lodging;
        total_fuel += fuel;

        printf("Total expenses for Stop %d: %.2f\n", current_stop, stop_expenses);

        if (total_expenses > budget) {
            printf("Budget exceeded at Stop %d! Trip ends prematurely.\n", current_stop);
            printf("Total expenses so far: %.2f (Budget: %.2f)\n", total_expenses, budget);
            break;
        }

        current_stop++;
    }

    if (total_expenses <= budget) {
        printf("\nTrip completed within budget!\n");
    } else {
        printf("\nTrip ended prematurely.\n");
    }

    printf("Total expenses: %.2f\n", total_expenses);
    printf("Total cost of food: %.2f\n", total_food);
    printf("Total cost of lodging: %.2f\n", total_lodging);
    printf("Total cost of fuel: %.2f\n", total_fuel);

    return 0;
}

#include <stdio.h>

int main() {
    int initial_energy;
    int rounds;
    int round_number = 1;
    int challenge_type;

    printf("Enter the initial energy level: ");
    scanf("%d", &initial_energy);

    printf("Enter the total number of rounds: ");
    scanf("%d", &rounds);

    int current_energy = initial_energy;

    do {
        printf("\nRound %d:\n", round_number);
        printf("Enter challenge type (1, 2, or 3): ");
        scanf("%d", &challenge_type);

        if (challenge_type == 1) {
            current_energy += round_number; 
            printf("Challenge 1: Energy increased by %d. Current energy: %d\n", round_number, current_energy);
        } else if (challenge_type == 2) {
            current_energy -= round_number / 3; 
            printf("Challenge 2: Energy decreased by %d. Current energy: %d\n", round_number / 3, current_energy);
        } else if (challenge_type == 3) {
            current_energy = current_energy * 1.5; 
            printf("Challenge 3: Energy multiplied to %d. Current energy: %d\n", current_energy, current_energy);
        } else {
            printf("Invalid challenge type. Skipping this round.\n");
            continue;
        }

        if (current_energy <= 0) {
            printf("You lost all your energy in round %d. Race ends!\n", round_number);
            break;
        }

        round_number++;
    } while (round_number <= rounds);

    if (current_energy > 0) {
        printf("\nYou completed all %d rounds! Final energy level: %d\n", rounds, current_energy);
    } else {
        printf("\nYou survived %d rounds before running out of energy.\n", round_number - 1);
    }

    return 0;
}

#include <stdio.h>

int main() {
    float balance = 1000.0;
    float emergency_fund = 0.0; 
    int total_days;
    int current_day = 1;
    int choice;

    printf("Enter the total number of days to manage the budget: ");
    scanf("%d", &total_days);

    while (current_day <= total_days) {
        printf("\n--- Day %d ---\n", current_day);
        printf("Choose an action:\n");
        printf("1. Add Income\n");
        printf("2. Pay Bills\n");
        printf("3. Buy Groceries\n");
        printf("4. Save Money into Emergency Fund\n");
        printf("5. Check Status\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

        if (choice == 1) {
            float income;
            printf("Enter income amount: ");
            scanf("%f", &income);
            balance += income;
            printf("Income added. Current balance: %.2f\n", balance);
        }
        else if (choice == 2) {
            float bills;
            printf("Enter bill amount: ");
            scanf("%f", &bills);
            balance -= bills;
            printf("Bills paid. Current balance: %.2f\n", balance);
        }
        else if (choice == 3) {
            float groceries;
            printf("Enter grocery amount: ");
            scanf("%f", &groceries);
            balance -= groceries;
            printf("Groceries purchased. Current balance: %.2f\n", balance);
        }
        else if (choice == 4) {
            float savings;
            printf("Enter amount to save in emergency fund: ");
            scanf("%f", &savings);
            if (savings > balance) {
                printf("Not enough balance to save this amount!\n");
            }
            else {
                balance -= savings;
                emergency_fund += savings;
                printf("Saved %.2f into emergency fund. Current emergency fund: %.2f, Current balance: %.2f\n", savings, emergency_fund, balance);
            }
        }
        else if (choice == 5) {
            printf("Current Financial Status:\n");
            printf("Balance: %.2f\n", balance);
            printf("Emergency Fund: %.2f\n", emergency_fund);
        }
        else {
            printf("Invalid choice. Please select a valid action.\n");
        }

        balance -= 5.0;
        printf("Daily maintenance fee deducted. Current balance: %.2f\n", balance);
        if (balance < 100 && balance > 0) {
            balance -= 20.0;
            printf("Warning! Balance fell below $100. Penalty of $20 applied. Current balance: %.2f\n", balance);
        }
        if (balance < 0) {
            printf("\nBudget Failed! Your balance went negative on day %d.\n", current_day);
            break;
        }
        current_day++;
    }
    if (balance >= 0) {
        printf("\nBudget spent wisely throughout the days. Final balance: %.2f, Emergency Fund: %.2f\n", balance, emergency_fund);
    }
    return 0;
}

#include <stdio.h>

int main() {
    int n;
    int weight;
    int fragile;
    int truckCount = 0;
    int currentWeight = 0;

    printf("Enter the number of packages: ");
    scanf("%d", &n);

    for (int i = 1; i <= n; i++) {
        printf("\nEnter weight of package %d (max 1000 kg): ", i);
        scanf("%d", &weight);

        if (weight > 1000) {
            printf("Error: Package weight cannot exceed 1000 kg. Please re-enter the weight for package %d.\n", i);
            i--;
            continue;
        }

        printf("Is package %d fragile (0 = No, 1 = Yes)? ", i);
        scanf("%d", &fragile);

        if (fragile == 1) {
            truckCount++;
            printf("Package %d (weight: %d kg) requires a separate truck (fragile).\n", i, weight);
        } else {
            if (currentWeight + weight <= 1000) {
                currentWeight += weight;
                printf("Package %d (weight: %d kg) added to current truck (total weight: %d kg).\n", i, weight, currentWeight);
            } else {
                truckCount++;
                printf("Truck full. Starting a new truck for package %d (weight: %d kg).\n", i, weight);
                currentWeight = weight;
            }
        }
    }

    if (currentWeight > 0) {
        truckCount++;
    }

    printf("\nMinimum number of trucks required: %d\n", truckCount);

    return 0;
}

#include <stdio.h>

int main() {
    int energy_level;
    int total_rounds;

    printf("Enter the initial energy level: ");
    scanf("%d", &energy_level);

    printf("Enter the total number of stabilization rounds: ");
    scanf("%d", &total_rounds);

    int round = 1;

    while (round <= total_rounds) {
        printf("\nRound %d: ", round);

        if (round % 4 == 0) {
            energy_level += round * round; 
            printf("Energy level increased by %d. Current energy level: %d\n", round * round, energy_level);
        } else if (round % 6 == 0) {
            energy_level -= round * 2; 
            printf("Energy level decreased by %d. Current energy level: %d\n", round * 2, energy_level);
        } else {
            energy_level /= 2;
            printf("Energy level halved. Current energy level: %d\n", energy_level);
        }

        if (energy_level < 0 || energy_level > 1000) {
            printf("Energy level out of bounds in round %d. Stabilization failed!\n", round);
            break;
        }
        round++;
    }

    if (round > total_rounds) {
        printf("\nCongratulations! You stabilized the energy core for all %d rounds. Final energy level: %d\n", total_rounds, energy_level);
    }

    return 0;
}