C++实现子函数四则运算的代码

您好，以下是 C 实现子函数四则运算的代码：

#include <stdio.h>

int add(int a, int b) {
return a + b;
}

int subtract(int a, int b) {
return a - b;
}

int multiply(int a, int b) {
return a * b;
}

int divide(int a, int b) {
if (b == ) {
printf("Error: Division by zero\n");
return ;
}
return a / b;
}

int main() {
int a = 10, b = 5;
printf("a + b = %d\n", add(a, b));
printf("a - b = %d\n", subtract(a, b));
printf("a * b = %d\n", multiply(a, b));
printf("a / b = %d\n", divide(a, b));
return ;
}