Read in string from user and convert to NSString

How can i store user input as a nsstring to be placed within an nsmutablearray? scanf is not working for string type.

-(NSString *) addMemo;
{
NSMutableArray  *memoArray = [NSMutableArray ar开发者_如何学运维ray];
NSLog(@"Please add your memo.");
scanf("\n", &memo);
[memoArray addObject:memo];
}

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You should be able to use NSString's stringWithCString:encoding: constructor to create an NSString from memo.