3- Write the necessary codes starting from the dashed lines below for the given C program which finds the maximum number in the given two dimensional array using ptr.

#include

int main(void) {

int num[3][4] = {

{10, 2, 3, 4},

{75, 46, 7, 108},

{9, 1, 11, 12}

};

int *ptr = &num[0][0];

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