Check Memory Leak

#define _CRTDBG_MAP_ALLOC

#include<iostream>

#include <crtdbg.h>

using namespace std;

int main()

{

char *a = (char*)malloc(sizeof(char)*124);

memset(a,0x00,124);

char *p = a;

free(p);

int *ptr = (int*)malloc(sizeof(int)*124);

int *ptr2 = ptr;

ptr = (int*)malloc(sizeof(int)*124);

free(ptr2);

_CrtDumpMemoryLeaks();

return 0;

}