Question

输入一个正整数a计算边长为a的正方形面积要求用函数C语言编写

Answer 1

#include<stdio.h>
int mianji(int x)
{
return x*x;

}
int main()
{
int a;

print("请输入边长a：");

scanf("%d",&a);

print("面积s = ",mianji(a));

return 0;

}

Answer 2

#include <stdio.h>
#include <stdlib.h>
int main()
{
int a;
int s;
scanf("%d",&a);
s = a*a;
printf("%d\n",s);
return 0;
}