#include <iostream> #include <Windows.h> #include <string> using namespace std; int main() { int n; int ret[32]; int i = 0; cout << "请输入一个正整数:"; cin >> n; if (n < 0) { cout << "需要输入一个正整数!" << endl; system("pause"); return 1; } while (n != 0) { ret[i] = n % 2; n = n / 2; i++; } for (i--; i >= 0; i--) { cout << ret[i] ; } cout << endl; system("pause"); return 0; }
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