编辑代码

#include <stdio.h>
int main()
{
    int NN1 = 0;
    int NN2 = 0;
	int a = 0;
    int j = 0;
    printf("Hello, World\n");
    
    for(int i = 1;i<=12;i++)
    {
		printf("输入第%d位数字：\n",i);
    	scanf("%d",&a);
        if(a%2 == 0)
        {
            NN2 += a;
        }
        else if(a%2 != 0)
        {
            NN1 += a;
        }
    }
    j =10 - (NN1 + NN2*3)%10;
    if(j == 10) j=0;
    printf("计算得出校验位是：%d",j);
    return(0);
}