RosettaCodeData/Task/Create-a-two-dimensional-ar.../Objective-C/create-a-two-dimensional-ar...

29 lines
760 B
Objective-C

#import <Foundation/Foundation.h>
int main()
{
int num1, num2, i, j;
NSMutableArray *arr;
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
scanf("%d %d", &num1, &num2);
NSLog(@"%d %d", num1, num2);
arr = [NSMutableArray arrayWithCapacity: (num1*num2)];
// initialize it with 0s
for(i=0; i < (num1*num2); i++) [arr addObject: [NSNumber numberWithInt: 0]];
// replace 0s with something more interesting
for(i=0; i < num1; i++) {
for(j=0; j < num2; j++) {
[arr replaceObjectAtIndex: (i*num2+j) withObject: [NSNumber numberWithInt: (i*j)]];
}
}
// access a value: i*num2+j, where i,j are the indexes for the bidimensional array
NSLog(@"%@", [arr objectAtIndex: (1*num2+3)]);
[pool release];
return 0;
}