牛刀小试

刚开始学c，还不了解，花了两个多真是写了书上的五个简单题，慢慢来吗！不积小流，无以成江河#include "stdio.h"
void main()
{
	int c,n;
	scanf("%d",&n);
	c=n%2;
	if(c=0)
		printf("n is an even");
	else
		printf("n is an odd");
	return 0;

}

#include <stdio.h>
#include<stdlib.h>
int main()
{
	int x,y;
	scanf("%d",x);
	if(-5<x<0) y=x;
	else if(x=0) y=x-1;
	else if(0<x<10) y=x+1;
	return 0;
}

#include "stdio.h"
void main()
{
	 long price,taxes;
	 int grade;
	 scanf("%ld",&price);
	 grade=(price-1)/1000;
	 switch(grade)
	 {
	 case 0: printf("taxes==0");break;
	 case 1:
	 case 2:
	 case 3:
	 case 4: printf("taxes==price*0.02");break;
	 case 5:
	 case 6:
	 case 7:
	 case 8:
	 case 9: printf("taxes=price*0.03");break;
	 default: printf("taxes==price*0.05");
	 }
	 return 0;

}

#include<stdio.h>
#include<stdlib.h>
int main()
{
	int n;
	scanf("%d",&n);
	if(0<=n&&n<60)
		printf("BAD");
	else if(60<=n&&n<=85)
		printf("GOOD");
	else if(85<n&&n<=100)
		printf("VERY GOOD");
	return 0;
	system("pause");
}

#include<stdio.h>
#include<stdlib.h>
int main()
{
	int a,b,c,d,x,y,s;
	scanf("%d%d",&x,&y);
	a=x/10;
	b=x%10;
	c=y/10;
	d=y%10;
	s==a*1000+b*10+c*100+d;
    printf("%d",s);
	return 0;
	system("pause");
}