Codeforces 1272 A-E A Three Friends 直接枚举所有情况,共\(3\times 3\times 3=27\)种. code #include<bits/stdc++.h> #define fi first #define se second #define lson l,mid,p<<1 #define rson mid+1,r,p<<1|1 #define pb push_back #define ll long long using…
比赛传送门 Div3真的是暴力杯,比div2还暴力吧(这不是明摆的嘛),所以对我这种一根筋的挺麻烦的,比如A题就自己没转过头来浪费了很久,后来才醒悟过来了.然后这次竟然还上分了...... A题:爆搜 B题:字符串,简单贪心 C题:字符串,简单数学 D题:DP A. Three Friends time limit per test 1 second memory limit per test 256 megabytes input standard input output standard…
链接: https://codeforces.com/contest/1272/problem/E 题意: You are given an array a consisting of n integers. In one move, you can jump from the position i to the position i−ai (if 1≤i−ai) or to the position i+ai (if i+ai≤n). For each position i from 1 to…
链接: https://codeforces.com/contest/1272/problem/D 题意: You are given an array a consisting of n integers. You can remove at most one element from this array. Thus, the final length of the array is n−1 or n. Your task is to calculate the maximum possib…
链接: https://codeforces.com/contest/1272/problem/C 题意: Recently, Norge found a string s=s1s2-sn consisting of n lowercase Latin letters. As an exercise to improve his typing speed, he decided to type all substrings of the string s. Yes, all n(n+1)2 of…
链接: https://codeforces.com/contest/1272/problem/B 题意: Recently you have bought a snow walking robot and brought it home. Suppose your home is a cell (0,0) on an infinite grid. You also have the sequence of instructions of this robot. It is written as…
链接: https://codeforces.com/contest/1272/problem/A 题意: outputstandard output Three friends are going to meet each other. Initially, the first friend stays at the position x=a, the second friend stays at the position x=b and the third friend stays at t…
