题解 | 进制转换

题目链接

把输入的无符号整数转化为二进制形式输出

#include <stdio.h>
#include<vector>
using namespace std;
//除2取余，商0停止，逆序排列
int main() {
	unsigned int n;
	while (scanf("%u", &n) != EOF) {
		vector <int> bin;
		//特殊处理
		if (n == 0) {
			printf("0\n");
			continue;
		}
		else {
			while (n != 0) {
				bin.push_back(n % 2);
				n = n / 2;
			}
			for (int i = bin.size() - 1; i >= 0; i--) {
				printf("%d", bin[i]);
			}
		}
		printf("\n");
	}
	return 0;
}