#include <stdio.h>
class IntP {
public:
    int* mpPtr;
    IntP(int* a) :mpPtr(a) {}
 
    IntP& operator++() {
        ++mpPtr;
        return *this;
    }
    int& operator*()const {
        return *mpPtr;
    }
};
 
int main() {
    int a[3] = { 0, 1, 2 };
    int b[3] = { 0, 1, 2 };
 
    int *pa = a;
    IntP pb = b;
 
    *(++pa) = *(++pa);
    *(++pb) = *(++pb);
 
    printf("a=(%u, %u, %u)\n", a[0], a[1], a[2]);
    printf("b=(%u, %u, %u)\n", b[0], b[1], b[2]);
}
 

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