Have Fun with Numbers Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it ...
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其他好文 时间：
2020-02-20 00:09:35
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70
1.题目描述 英文版： Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement i ...
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2020-02-19 00:57:15
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Large sum Work out the first ten digits of the sum of the following one hundred 50 digit numbers. 大和 计算出以下一百个50位数的和的前十位数字。 解题思路 目前想到的就是用高精度加法模拟。 100个5 ...
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2020-02-18 20:40:24
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Sub-string divisibilityThe number, 1406357289, is a 0 to 9 pandigital number because it is made up of each of the digits 0 to 9 in some order, but it ... ...
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2020-02-18 16:25:35
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Given a m * n matrix grid which is sorted in non-increasing order both row-wise and column-wise. Return the number of negative numbers in grid. Exampl ...
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2020-02-18 13:04:04
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75
Special Pythagorean triplet A Pythagorean triplet is a set of three natural numbers, $a using namespace std; int main() { for (int i = 1; i <= 1000/3; ...
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2020-02-17 20:11:32
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Largest product in a grid In the 20×20 grid below, four numbers along a diagonal line have been marked in red. 08 02 22 97 38 15 00 40 00 75 04 05 07 ...
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2020-02-17 19:50:33
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Largest palindrome product A palindromic number reads the same both ways. The largest palindrome made from the product of two 2 digit numbers is 9009 ...
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2020-02-17 18:15:39
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Largest prime factor The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number 600851475143 ? 最大质因数 13195的所有质因数为5 ...
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2020-02-17 18:06:08
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105
Colossal Fibonacci Numbers! 1. "链接" 2. 题意 输入两个非负整数a，b和正整数n(0 using namespace std; typedef unsigned long long ll; //此题会爆long long const int maxn = 1e6+ ...
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其他好文 时间：
2020-02-16 14:30:00
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72
