acwing::acwing3507 命名空间参考

1. 阶乘的末尾0

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函数
int	main (istream &cin, ostream &cout)
	TEST (acwing3507, case1)
	TEST (acwing3507, case2)

详细描述

1. 阶乘的末尾0

函数说明

main()

int acwing::acwing3507::main	(	istream &	cin,
		ostream &	cout
	)

在文件 acwing408.cpp 第 2052 行定义.

                                              {
            unsigned long n;
            cin >> n;
            unsigned long cnt2 = 0;
            unsigned long cnt5 = 0;
            for(unsigned long i = 2; i <= n; i *= 2) {
                cnt2 += n / i;
            }
            for(unsigned long i = 5; i <= n; i *= 5) {
                cnt5 += n / i;
            }
            cout << min(cnt2, cnt5);
            return 0;
        }

被这些函数引用 TEST().

TEST() [1/2]

acwing::acwing3507::TEST	(	acwing3507	,
		case1
	)

在文件 acwing408_test.cpp 第 2427 行定义.

                                {
            istringstream in("5");
            auto out = ostringstream();
            main(in, out);
            const auto ans = out.str();
            ASSERT_EQ("1",
                      ans);
        }

引用了 main().

TEST() [2/2]

acwing::acwing3507::TEST	(	acwing3507	,
		case2
	)

在文件 acwing408_test.cpp 第 2436 行定义.

                                {
            istringstream in("417918803");
            auto out = ostringstream();
            main(in, out);
            const auto ans = out.str();
            ASSERT_EQ("104479694", ans);
        }

引用了 main().