{"trustable":false,"sections":[{"title":"","value":{"format":"MD","content":"现在用c语言写了以下一个函数\n\n```cpp\nlong long F(int n) {\n long long res \u003d 0;\n for (int i \u003d 1; i \u003c\u003d n; i++) {\n res +\u003d n / i;\n }\n return res;\n}\n```\n\n现在让你输入n,输出这个函数的计算结果"}},{"title":"Input","value":{"format":"MD","content":"第一行输入 **T (≤ 1000)**,表示接下来的测试个数,接下来有T行,每行一个n,**n (1 ≤ n \u003c 2147483648)**."}},{"title":"Output","value":{"format":"MD","content":"对于每个n,输出Case #i:接着是F(n)的结果,详见输出样例,注意冒号后面有空格"}},{"title":"Sample Input","value":{"format":"MD","content":"```\n11\n1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n2147483647\n```"}},{"title":"Sample Output","value":{"format":"MD","content":"```\nCase 1: 1\nCase 2: 3\nCase 3: 5\nCase 4: 8\nCase 5: 10\nCase 6: 14\nCase 7: 16\nCase 8: 20\nCase 9: 23\nCase 10: 27\nCase 11: 46475828386\n```"}}]}