acwing::acwing3448 命名空间参考

1. 基本算术

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函数
int	main (istream &cin, ostream &cout)
	TEST (acwing3448, case1)
	TEST (acwing3448, case2)

详细描述

1. 基本算术

函数说明

main()

int acwing::acwing3448::main	(	istream &	cin,
		ostream &	cout
	)

在文件 acwing408.cpp 第 1942 行定义.

                                              {
            unsigned long a, b;
            cin >> a >> b;
            for(; a != 0 || b != 0; cin >> a >> b) {
                vector<unsigned short> va = vector<unsigned short>();
                vector<unsigned short> vb = vector<unsigned short>();
                while(a != 0) {
                    va.push_back(a % 10);
                    a /= 10;
                }
                while(b != 0) {
                    vb.push_back(b % 10);
                    b /= 10;
                }
                vector<unsigned short> res;
                unsigned short cnt   = 0;
                unsigned short carry = 0;
                for(size_t i = 0; i < max(va.size(), vb.size()); i++) {
                    unsigned short sum = (i < va.size() ? va[i] : 0) + (i < vb.size() ? vb[i] : 0) + carry;
                    cnt += sum / 10;
                    carry = sum / 10;
                }
                ostringstream ss = ostringstream();
                ss << cnt;
                cout << ((cnt != 0) ? ss.str() : "No") << " carry operation" << ((cnt <= 1) ? "" : "s") << '.' << endl;
            }
            return 0;
        }

被这些函数引用 TEST().

TEST() [1/2]

acwing::acwing3448::TEST	(	acwing3448	,
		case1
	)

在文件 acwing408_test.cpp 第 2127 行定义.

                                {
            istringstream in("123 456\n"
                             "555 555\n"
                             "123 594\n"
                             "0 0");
            auto out = ostringstream();
            main(in, out);
            const auto ans = out.str();
            ASSERT_EQ("No carry operation.\n"
                      "3 carry operations.\n"
                      "1 carry operation.\n",
                      ans);
        }

引用了 main().

TEST() [2/2]

acwing::acwing3448::TEST	(	acwing3448	,
		case2
	)

在文件 acwing408_test.cpp 第 2141 行定义.

                                {
            istringstream in("123 456\n"
                             "555 555\n"
                             "123 594\n"
                             "99999 1\n"
                             "167 33\n"
                             "5 55\n"
                             "0 1\n"
                             "1654 69565\n"
                             "999999999 999999999\n"
                             "0 0");
            auto out = ostringstream();
            main(in, out);
            const auto ans = out.str();
            ASSERT_EQ("No carry operation.\n"
                      "3 carry operations.\n"
                      "1 carry operation.\n"
                      "5 carry operations.\n"
                      "2 carry operations.\n"
                      "1 carry operation.\n"
                      "No carry operation.\n"
                      "3 carry operations.\n"
                      "9 carry operations.\n",
                      ans);
        }

引用了 main().