pat::b::b1019 命名空间参考

1019 数字黑洞 更多...

函数
int	main (istream &cin, ostream &cout)
	TEST (b1019, case1)
	TEST (b1019, case2)

详细描述

1019 数字黑洞

函数说明

main()

int pat::b::b1019::main	(	istream &	cin,
		ostream &	cout
	)

在文件 pat.cpp 第 659 行定义.

                                                  {
                string num;
                cin >> num;
                int a = 0;
                int b = 0;
                while(num.length() < 4) {
                    num = num + '0';
                }
                if(num == "0000") {
                    cout << "0000 - 0000 = 0000";
                    return 0;
                }
                while(num != "0000" && a - b != 6174) {
                    stringstream ssa;
                    stringstream ssb;
                    stringstream ss;
                    sort(num.rbegin(), num.rend());
                    ssa << num;
                    ssa >> a;
                    sort(num.begin(), num.end());
                    ssb << num;
                    ssb >> b;
                    ss << setw(4) << right << setfill('0') << a - b;
                    num = "";
                    ss >> num;
                    cout << setw(4) << right << setfill('0') << a << " - " << setw(4) << right << setfill('0') << b << " = " << setw(4) << right << setfill('0') << a - b << endl;
                }
                return 0;
            }

引用了 acwing::acwing1929::right.

被这些函数引用 TEST().

TEST() [1/2]

pat::b::b1019::TEST	(	b1019	,
		case1
	)

在文件 pat_test.cpp 第 284 行定义.

                               {
                istringstream in("6767");
                auto out = ostringstream();
                main(in, out);
                const auto ans = out.str();
                ASSERT_EQ("7766 - 6677 = 1089\n9810 - 0189 = 9621\n9621 - 1269 = 8352\n8532 - 2358 = 6174\n", ans);
            }

引用了 main().

TEST() [2/2]

pat::b::b1019::TEST	(	b1019	,
		case2
	)

在文件 pat_test.cpp 第 292 行定义.

                               {
                istringstream in("2222");
                auto out = ostringstream();
                main(in, out);
                const auto ans = out.str();
                ASSERT_EQ("2222 - 2222 = 0000\n", out.str());
            }

引用了 main().