Xcode - Selected rows in table view does'nt retains its state - ios

Question

I am creating multiple lists like questions and answer session, question with multiple answers in table rows. But whenever I select a row other questions answers are also get selected and when I came back to same all the selections are gone. So how to avoid this ? Please help.
my code is,
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if(val==1)
{
checkedArr=[[NSMutableArray alloc] init];
for (int i = 0; i<17; i++)
{
[checkedArr addObject:#"1"];
}
NSLog(#"Checked arr size %i",[checkedArr count]);
return 17;
}
else if(val==2)
{
checkedArr=[[NSMutableArray alloc] init];
for (int i = 0; i<13; i++)
{
[checkedArr addObject:#"1"];
}
return 13;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *CellIdentifier = [NSString stringWithFormat:#"Cell%i",indexPath.row];
cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell==nil)
{
cell= [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
cell.textLabel.numberOfLines = 0;
cell.textLabel.font = [UIFont fontWithName:#"Helvetica" size:14.0];
}
cell.textLabel.font = [UIFont fontWithName:#"Helvetica-Bold" size:18.0];
UIView *selectionColor = [[UIView alloc] init];
selectionColor.backgroundColor = [UIColor colorWithRed:99/255.0f green:209/255.0f blue:248/255.0f alpha:1.0];
cell.selectedBackgroundView = selectionColor;
if([[checkedArr objectAtIndex:indexPath.row] isEqual:#"0"])
{
cell.accessoryView=[[UIImageView alloc] initWithImage:[UIImage imageNamed:#"tick.png"]];
[checkedArr addObject:indexPath];
NSLog(#"checkedArr 0000000");
}
else if ([[checkedArr objectAtIndex:indexPath.row] isEqual:#"1"])
{
cell.accessoryView.hidden=TRUE;
//cell.accessoryView=Nil;
[checkedArr removeObject:indexPath];
NSLog(#"checkedArr 111111");
}
cell.textLabel.frame=CGRectMake(75.0, 50.0, 150.0, 20.0);
cell.textLabel.text=[listArray objectAtIndex:indexPath.row];
NSLog(#"Checked arr size %i",[checkedArr count]);
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
cell=[questionTable cellForRowAtIndexPath:indexPath];
[checkedArr replaceObjectAtIndex:indexPath.row withObject:#"0"];
if([[checkedArr objectAtIndex:indexPath.row] isEqual:#"0"])
{
cell.accessoryView=[[UIImageView alloc] initWithImage:[UIImage imageNamed:#"tick.png"]];
[checkedArr addObject:indexPath];
NSLog(#"checkedArr 0000000");
}
else if ([[checkedArr objectAtIndex:indexPath.row] isEqual:#"1"])
{
cell.accessoryView=nil;
[checkedArr removeObject:indexPath];
NSLog(#"checkedArr 111111");
}
[questionTable deselectRowAtIndexPath:indexPath animated:YES];
//[self.questionTable reloadData];
NSLog(#"Val is %i",val);
NSLog(#"selected is %#",[listArray objectAtIndex:indexPath.row]);
// NSLog(#"Checked arr descripton %#",[checkedArr description]);
}
-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
{
cell.accessoryView = nil;
}