/*
switch (entered) {
case 1: if (tic[0][0] != 0) {tic[0][0] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
case 2: if (tic[0][1] != 0) {tic[0][1] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
case 3: if (tic[0][2] != 0) {tic[0][2] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
case 4: if (tic[1][0] != 0) {tic[1][0] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
case 5: if (tic[1][1] != 0) {tic[1][1] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
case 6: if (tic[1][2] != 0) {tic[1][2] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
case 7: if (tic[2][0] != 0) {tic[2][0] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
case 8: if (tic[2][1] != 0) {tic[2][1] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
case 9: if (tic[2][2] != 0) {tic[2][2] = 0; uswitcher = 1;} else {cout << "Invalid\n"; uswitcher = 0; continue;} break;
}
*/

int x = (entered - 1) % 3;
int y = (entered - 1) / 3;
if (tic[y][x] != 0)
{
    tic[y][x] = 0;
    uswitcher = 1;
}
else
{
    cout << "Invalid\n";
    uswitcher = 0;
    continue;
}