Objective C- Hacker Earth

GetVowels_objC.m

#import <Foundation/Foundation.h>
@interface FindVowels
{

}
-(int) findVowel:(int)x;
@end
@implementation FindVowels
-(int) findVowel:(char)x {
    if(x >= 97)
	{
		x -= 32;
	}
  if(x == 'A' || x == 'E' || x == 'I' || x == 'O' || x == 'U')
	{
		return 1;
	}
	return 0;
}
@end
int main(int argc, const char* argv[]){
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    int kases;
    scanf("%d",&kases);
   
    int count = 0;
    while(kases--)
    {
        char str[999999];
        scanf("%s",str);
        count = 0 ;
    for(int i = 0; i<strlen(str); i++) {
        if([FindVowels findVowel:str[i]] == 1)
        {
          count++;  
        }
        //if (strchr(foo, 'a') != NULL)

         
        
    }
    printf("%d \n",count);
    
    }
    [pool drain];
    return 0;
}

LinearSearch_objC.m

#import <Foundation/Foundation.h>

int main(int argc, const char* argv[]){
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
   
   
   int noInputs;
    scanf("%d", &noInputs);
   int findNo;
    scanf("%d", &findNo);

   int index = -1;
   if(noInputs>0)
   {
    for(int kase = 1; kase <= noInputs; kase++) {
        int  N;
        scanf("%d", &N);
       if(N == findNo)
       {
          index = kase;
       }
    }
    }
    printf("%d",index);
   
    [pool drain];
    return 0;
}