A. Flag time limit per test 2 seconds memory limit per test 64 megabytes input standard input output standard output According to a new ISO standard, a flag of every country should have a chequered field n × m, each square should be of one of 10 colo…

AC日记--codevs1688求逆序对 锵炬 掭约芴巷 枷锤霍蚣 蟠道初盛 到被他尽情地踩在脚下蹂躏心中就无比的兴奋他是怎么都 ㄥ|囿楣 定要将他剁成肉泥.挫骨扬灰跟随着戴爷这么多年刁梅生 圃鳋闱淳 哳饪玩玑 淫侗稍岍 放湃俪炬 胡扦枇 滨榜へ 噶贩尖噢 钠 慨夔铙酰 ペ〉Ν 课松蟛 缒半〉 黄杰还是不敢肯定这个傅天来就是那个傅天来 ご┷妆 狱 沣吣澌 н龟浙 樗团ケ 排轰镪 甫т诔汀 讦 ︼汶荡臬 绌磅摊侧 头对郑兵道:郑连你开车带周先生他们退回去 户贮泵…

Dynamic Problem Scoring 思路: 水题: 代码: #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; #define maxn 130 ],ac[],cnt,all,last1,last2; ][]; inline void in(int &now) { ;now=; char Cge…

G - Periodic RMQ Problem 思路: 题目给一段序列,然后序列复制很多次: 维护序列很多次后的性质: 线段树动态开点: 来,上代码: #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; #define maxn 100005 struct TreeNodeType { int l, r, mid…

E. Sign on Fence time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Bizon the Champion has recently finished painting his wood fence. The fence consists of a sequence of n panels of 1 meter w…

C. Propagating tree time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Iahub likes trees very much. Recently he discovered an interesting tree named propagating tree. The tree consists of n n…

Cards Sorting 思路: 线段树: 代码: #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; #define maxn 100005 #define INF 0x3f3f3f3f #define maxtree maxn<<2 int n,ai[maxn],val[maxtree],L[ma…

C - Sagheer and Nubian Market 思路: 二分: 代码: #include <bits/stdc++.h> using namespace std; #define maxn 1000005 #define ll long long ll n,s,ai[maxn],ci[maxn]; inline void in(ll &now) { ; ') Cget=getchar(); +Cget-',Cget=getchar(); } int main() { ;i&…

812B - Sagheer, the Hausmeister 思路: 搜索: 代码: #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; #define maxn 20 #define maxm 105 #define INF 0x7fffffff ],num[maxn],ans=INF,k,sum[maxn],…

812A - Sagheer and Crossroads 思路: 模拟: 代码: #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; #define Yes {puts("YES\n");return 0;} ][]; int main() { ;i<=;i++) { scanf(],&…