NSIndexPath+SharedIndexPath.m

@interface NSIndexPath (SharedIndexPath)
@end
@implementation NSIndexPath (SharedIndexPath)
+ (instancetype)sharedIndexPathForRow:(NSInteger)row inSection:(NSInteger)section
{
    static NSIndexPath *arr[10][10] = {nil};
    if (arr[row][section] == nil)
        arr[row][section] = [NSIndexPath indexPathForRow:row inSection:section];
    return arr[row][section];
}
@end