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 swapping digits are of different p...
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 swapping digits are of different p...
Educational Codeforces Round 75 C Minimize The Integer 这道题的意思就是给出一个由数字组成的字符串,相邻的数字可以互换位置,但是如果相邻的为同奇同偶这样就不能交换。让我们求交换任意次数可以产生的最小数。 这条限制就是说明了,奇数偶数的相对顺序是不能变的,这道题主要是找不变量,如果把这一点相通了就好...
Output a single integer — the minimum possible value of after doing exactly k1 operations on array A and exactly k2 operations on array B. Examples Input 2 0 01 22 3 Output 2 Input 2 1 01 22 2 Output 0 Input 2 5 73 414 4 Output 1 Note In the first sample case, we cannot ...
For every kk from 00 to nn, find the minimal possible number of inversions in the permutation after you choose a subsequence of length exactly kk. The first line contains a single integer tt (1≤t≤50 0001≤t≤50000)— the number of test cases. The first line of each test case cont...
You have an array of N integers and in each step you can merge any 2 of them into a single integer (and then this integer is added to the array while the previous 2 are erased from it). The cost of merging two elements X and Y is max(X, Y). ...
And you are given the integerkkk— the maximum number of operations that can be performed. Find the minimum lexicographically possible string that can be obtained by performing no more thankkkoperations. The stringa=a1a2…ana=a_1a_2 \dots a_na=a1a2…anis lexicographically smaller ...
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The first line of the test case contains one integer n (1≤n≤100) — the number of elements in the permutation. The second line of the test case contains n distinct integers from 1 to n — the given permutation. Output For each test case, print the answer on it — the lexicograhic...
Educational Codeforces Round 75 CMinimizeThe Integer 这道题的意思就是给出一个由数字组成的字符串,相邻的数字可以互换位置,但是如果相邻的为同奇同偶这样就不能交换。让我们求交换任意次数可以产生的最小数。 这条限制就是说明了,奇数偶数的相对顺序是不能变的,这道题主要是找不变量,如果把这一点相通了就好理...