c语言十进制数转二进制数

#include <stdio.h> #define N 8 //固定位数int main(){int arr[N] = {0};//将数组初始化为0(位数不满时，将输出0填补)int i;int n;printf("请输入一位整数:\n");scanf("%d",&n);for (i = N-1; i >=0; i--) //对数组从后往前赋值{arr[i] = n % 2;n /= 2;}printf("该值转化为二进制数输出为(8位):");for (i = 0; i <= N - 1; i++)printf("%d",arr[i]);return 0;}