题解 | #二进制数#

#include <iostream>
#include<vector>
using namespace std;

int main() {
    unsigned int x = 0; //别丢int
    while (scanf("%d", &x) != EOF) {
        vector<int> binary;
        while (x != 0) {
            binary.push_back(x % 2);
            x /= 2;
        }
        vector<int>::reverse_iterator it;//反向迭代器
        for (it = binary.rbegin(); it != binary.rend();
                it++) { //rbegin()与rend()获取反向之后的首尾
            printf("%d", *it);
        }
        printf("\n");
    }
}