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    int *X = malloc(sizeof(int) * 10);
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    int an_int;
    void *void_pointer = &an_int;
    double *double_ptr = void_pointer;
    *double_ptr = 5;
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    int *X = malloc(sizeof(int);
    int *x_array = malloc(sizeof(int) * 10);
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    free(X);
    free(x_array);
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    int *X = new int;
    int *x_array = new int[10];
    delete X;
    delete[] x_array;
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    #include <stdio.h>
    int main()
    {
        foo();
        return 0;
    }
    int foo()
    {
        printf("Hello world\n");
    }
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Éèint arr[]={6,7,8,9,10};
int *ptr=arr;
*(ptr++)+=123;
printf(£¢%d,%d£¢,*ptr,*(++ptr));
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#include <stdio.h>
#include <string>
#include <iostream>
#include <stdlib.h>
#include <vector>
#include <stack>
using namespace std;
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