#include/*m1和m2为两个相加的数组首元素地址,r和c为两个数组的行数和列数m用于存放结果。调用该函数时,要求m为有足够存储单元、能容纳运算结果的数组首元素地址*/void add(int *m,int *m1,int *m2,int r,int c);void sub(int *m,int *m1,int *m2,int r,int c);void mult(int *m,int *m1,int *m2,int r,int p,int c);void disp(int *m,int r,int c);void main(){int a[3][4]={{2... |