#include <stdio.h>

#define ROWS 5
#define COLS 3

int lights[ROWS][COLS] = {0};
int power[ROWS][COLS] = {
    {20, 15, 20},
    {10, 15, 10},
    {20, 15, 20},
    {10, 15, 10},
    {20, 15, 20}
};

void toggleRow(int row) {
    for (int col = 0; col < COLS; col++) {
        lights[row][col] = !lights[row][col];
    }
}

void toggleCol(int col) {
    for (int row = 0; row < ROWS; row++) {
        lights[row][col] = !lights[row][col];
    }
}

void toggleLight(int row, int col) {
    lights[row][col] = !lights[row][col];
}

int calculatePower() {
    int totalPower = 0;
    for (int row = 0; row < ROWS; row++) {
        for (int col = 0; col < COLS; col++) {
            if (lights[row][col]) {
                totalPower += power[row][col];
            }
        }
    }
    return totalPower;
}

int main() {
    int choice, row, col;

    do {
        printf("Menu:\n");
        printf("1. Bat tat den theo hang\n");
        printf("2. Bat tat den theo cot\n");
        printf("3. Bat tat den theo vi tri\n");
        printf("4. Xem cong suat tieu thu\n");
        printf("5. Thoat\n");
        printf("Chon: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                printf("Nhap hang (0-4): ");
                scanf("%d", &row);
                toggleRow(row);
                break;
            case 2:
                printf("Nhap cot (0-2): ");
                scanf("%d", &col);
                toggleCol(col);
                break;
            case 3:
                printf("Nhap hang (0-4) va cot (0-2): ");
                scanf("%d %d", &row, &col);
                toggleLight(row, col);
                break;
            case 4:
                printf("Cong suat tieu thu: %d W\n", calculatePower());
                break;
            case 5:
                printf("Thoat chuong trinh.\n");
                break;
            default:
                printf("Lua chon khong hop le.\n");
        }
    } while (choice != 5);

    return 0;
}