Description ) in the first line, which has the same meaning as above. And the number is in the next line. It has at most 1000 digits, and will not start with 0. There are at most 10 test cases that satisfy the number of digits is larger than 100. Out…

Description ) in the first line, which has the same meaning as above. And the number is in the next line. It has at most 1000 digits, and will not start with 0. There are at most 10 test cases that satisfy the number of digits is larger than 100. Out…

Given a non-negative integer, you could swap two digits at most once to get the maximum valued number. Return the maximum valued number you could get. Example 1: Input: 2736 Output: 7236 Explanation: Swap the number 2 and the number 7. Example 2: Inp…

645. Set Mismatch The set S originally contains numbers from 1 to n. But unfortunately, due to the data error, one of the numbers in the set got duplicated to another number in the set, which results in repetition of one number and loss of another nu…

链接: https://codeforces.com/contest/1251/problem/C 题意: You are given a huge integer a consisting of n digits (n is between 1 and 3⋅105, inclusive). It may contain leading zeros. You can swap two digits on adjacent (neighboring) positions if the swappi…

C. Minimize The Integer time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output You are given a huge integer a consisting of n digits (n is between 1 and 3⋅105, inclusive). It may contain leading zero…

Description There is a company that makes plastic digits which are primarily put on the front door of each house to form the house number. In order to make sure that they don’t waste any resources, they want to make the exact number of digits for the…

不知道朋友在哪里看到的问题,qq来问我,题目是:在不修改主方法的前提下使用一个方法交换两个int的值,方法如下: public static void main(String[] args) { Integer a = 1; Integer b = 2; System.out.println("交换前:a="+a+",b="+b); swap(a,b); System.out.println("交换后:a="+a+",b="+…

Given a non-negative integer, you could swap two digits at most once to get the maximum valued number. Return the maximum valued number you could get. Example 1: Input: 2736 Output: 7236 Explanation: Swap the number 2 and the number 7. Example 2: Inp…

Given a non-negative integer, you could swap two digits at most once to get the maximum valued number. Return the maximum valued number you could get. Example 1: Input: 2736 Output: 7236 Explanation: Swap the number 2 and the number 7.  Example 2: In…