4、
#include<stdio.h>
int main(){
int a,b,c;
scanf("%d%d%d",&a,&b,&c);
if(a>b){
if(a>c){
printf("max num is :%d\n",a);
}
else
printf("max mun is:%d\n",c);
}
else{
if(b>c)
printf("max num is:%d\n",b);
else
printf("max num is:%d\n",c);
}
return 0;
}
5、
#include<stdio.h>
#include<math.h>
int main(){
int a;
scanf("%d",&a);
while(a<=0||a>=1000){
printf("Your input is illegal,please put again\n");
scanf("%d",&a);
}
a = sqrt(a);
printf("a sqrt :%d\n",a);
return 0;
}
6、
#include<stdio.h>
int main(){
int x,y;
printf("please input x:");
scanf("%d",&x);
if(x<1)
y = x;
else if(x>=1&&x<10)
y = 2*x-1;
else
y = 3*x-11;
printf("y = %d\n",y);
return 0;
}
8、
#include<stdio.h>
int main(){
int grade;
printf("Please input your score(0-100):");
scanf("%d",&grade);
if(grade>=90)
printf("grade is A\n");
else if(grade>=80)
printf("grade is B\n");
else if(grade>=70)
printf("grade is C\n");
else if(grade>=60)
printf("grade is D\n");
else
printf("grade is E\n");
return 0;
}
9、
#include<stdio.h>
int main(){
int a,b,num,renum = 0,count = 0;
scanf("%d",&a);
num = a;
while(num){
num/=10;
count++;
}
printf("The num length is:%d\n",count);
while(count){
b=a%10;
printf("Every bit number is:%d\n",b);
renum=renum*10+b;
a/=10;
count--;
}
printf("The reversed number is:%d\n",renum);
return 0;
}
10、
#include<stdio.h>
int main(){
long int a,p;
scanf("%ld",&a);
if(a>1000000)
p = (a-1000000)*0.01+400000*0.015+200000*0.03+200000*0.05+100000*0.075+100000*0.1;
else if(a>600000)
p = (a-600000)*0.015+200000*0.03+200000*0.05+100000*0.075+100000*0.1;
else if(a>400000)
p = (a-400000)*0.03+200000*0.05+100000*0.075+100000*0.1;
else if(a>20000)
p = (a-200000)*0.05+100000*0.075+100000*0.1;
else if(a>100000)
p = (a-100000)*0.075+100000*0.1;
else
p = a*0.1;
printf("profit is %ld\n",p);
return 0;
}
用switch把输入的数据比100000，从case（0）到case（10）defualt表示100w以上，case后面跟对应式子，并且输出，相应的选项做相应的值。
11、有点复杂，后期可能会改进。
#include<stdio.h>
int main(){
int a,b,c,d;
scanf("%d%d%d%d",&a,&b,&c,&d);
if(a>b)
if(a>c)
if(a>d)
printf("max:%d\n",a);
else
printf("max:%d\n",d);
else
if(c>d)
printf("max:%d\n",c);
else
printf("max:%d\n",d);
else
if(b>c)
if(b>d)
printf("max:%d\n",b);
else
printf("max:%d\n",d);
else
if(c>d)
printf("max:%d\n",c);
else
printf("max:%d\n",d);
return 0;
12、
void calculate(double x, double y)
{
if (1 <= x && x <= 3 && 1 <= y && y <= 3)
{
x = abs(x) - 2;
y = abs(y) - 2;
double r = sqrt(x * x + y * y);
if (r <= 1)
{
printf("该点坐标高度为10\n");
}
else
printf("该点坐标高度为0\n");
}
else
{
printf("该点坐标高度为0\n");
}
}
int main()
{
while (1)
{
double x, y;
printf("请输入x和y点的坐标:>");
scanf("%lf %lf", &x, &y);
calculate(fabs(x), fabs(y));
}
return 0;
}
标签：int,max,else,grade,谭浩强,100000,课后,printf,C语言 From： https://www.cnblogs.com/gunancheng/p/17393807.html