c 语言中的传值与传引用

#include<stdio.h>
int cubeByValue(int n);
int main(){
    int number = 5 ;
    printf("The original value of number is %d\n",number);
    number = cubeByValue(number);   
    printf("The new  value of number is %d\n",number);
    return 0;
}
int cubeByValue(int n){
    return n*n ;
}
#include<stdio.h>
void cubeByReference(int *nPtr);
int main(){
    int number = 5 ;
    printf("The original value of number is %d\n",number);
    cubeByReference( &number );
    printf("The new value of number is %d\n",number);
    return 0;
}
void cubeByReference(int *nPtr){
    *nPtr = *nPtr * *nPtr ;
}