链接: https://codeforces.com/contest/1251/problem/D 题意: You are the head of a large enterprise. n people work at you, and n is odd (i. e. n is not divisible by 2). You have to distribute salaries to your employees. Initially, you have s dollars for it,…
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…
链接: https://codeforces.com/contest/1251/problem/B 题意: A palindrome is a string t which reads the same backward as forward (formally, t[i]=t[|t|+1−i] for all i∈[1,|t|]). Here |t| denotes the length of a string t. For example, the strings 010, 1001 and…
链接: https://codeforces.com/contest/1251/problem/A 题意: Recently Polycarp noticed that some of the buttons of his keyboard are malfunctioning. For simplicity, we assume that Polycarp's keyboard contains 26 buttons (one for each letter of the Latin alph…
#define HAVE_STRUCT_TIMESPEC#include<bits/stdc++.h>using namespace std;pair<int,int>a[200007];int n;long long s;bool check(int x){ int num=0; long long sum=s; for(int i=n;i;--i){ if(a[i].first>=x) ++num; else if(a[i].second>=x&&s…
Problem Educational Codeforces Round 60 (Rated for Div. 2) - C. Magic Ship Time Limit: 2000 mSec Problem Description Input Output The only line should contain the minimal number of days required for the ship to reach the point (x2,y2)(x2,y2). If it…
Problem Educational Codeforces Round 60 (Rated for Div. 2) - D. Magic Gems Time Limit: 3000 mSec Problem Description Input The input contains a single line consisting of 2 integers N and M (1≤N≤10^18, 2≤M≤100). Output Print one integer, the total n…
