[HackerEarth] Given T test cases. Each test case contains a number N. Print how many pairs (i, j) exists such that i*j ≤ N. - 题解

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题目信息
题号 P21451
标题 [HackerEarth] Given T test cases. Each test case contains a number N. Print how many pairs (i, j) exists such that i*j ≤ N.
难度 普及-
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