HackerRank - Objective-C read 2 parameters, and then a line

main.m

#import <Foundation/Foundation.h>


int main(int argc, const char * argv[]){
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    int n;
    int k;
    scanf("%i %i",&n,&k);
    int a[n];
    for(int a_i = 0; a_i < n; a_i++){
       scanf("%d",&a[a_i]);
    }
    [pool drain];
    return 0;
}