#import <Foundation/NSObject.h> #import <stdio.h> int main() { id obj = [NSObject alloc]; printf("alloc: %d\n", [obj retainCount]); [obj init]; printf("init: %d\n", [obj retainCount]); [obj retain]; printf("retain: %d\n", [obj retainCount]); [obj retain]; printf("retain:</stdio.h></foundation/nsobject.h>…