阶段一部分题目

计算数字之和

#include <stdio.h>
int main(void)
{
	int number;
	printf("Input a number with 4-digit: ");
	scanf("%d",&number);
	printf("Output:\nsum=%d\n",number/1000+number%10+number/100%10+number/10%10);
	return 0;
}

计算问题

#include <stdio.h>
#include <math.h>
int main(void)
{
	double x,y;
	int  z;
	printf("please input x,y,z:");
	scanf("%lf,%lf,%d",&x,&y,&z);
	printf("Output:%.6lf\n",x+z%3*(int)(x+y)%2/4);//注意如果4改为4.0则会改变值应该是多算了小数位?(^?^*)
	return 0;
}

计算圆

#include <stdio.h>
#define a 3.14
int main(void)
{
	float r,h;
	printf("Input:i=");
	scanf("%f,h=%f",&r,&h);
	//printf("");
	

输出总分

<pre name="code" class="objc">#include <stdio.h>
int main(void)
{
	int num;
	printf("please input num=:");
	scanf("%d",&num);
	printf("Output:\ntotal=%d\n",30*num);
	return 0;
}

printf("Output:\nc1=%.2f\ns=%.2f\nv=%.2\n",a*2.0*r,a*r*r,a*r*r*h);}

输入二个整数计算它们之和

#include <stdio.h>
int main(void)
{
	int a,b;
	printf("please input data: ");
	scanf("%d %d",&a,&b);
	printf("Output:\n%4d+%4d=%5d\n",a,b,a+b);
	return 0;
}

正方形的面积和体积

#include <stdio.h>
#include <math.h>
int main(void)
{
	int side;
	printf("Input a side of cube: ");
	scanf("%d",&side);
	printf("Output:\nThe volume of cube is %d, the surface area of cube is %d.\n",side*side*side,side*side*6);
	return 0;
}