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//#pragma GCC optimize(4) #include <bits/stdc++.h> typedef long long ll; using namespace std; const int N=100000+5; #define ls (p<<1) #define rs (p<<1 阅读全文
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问题 D: Tally Counters 题目描述 A number of tally counters are placed in a row. Pushing the button on a counter will increment the displayed value by one, o 阅读全文
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Welcome Party 题目描述 The annual welcome party of the Department of Computer Science and Technology is coming soon! Many students have been applying to s 阅读全文
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Valentine's Day 题目描述 Oipotato loves his girlfriend very much. Since Valentine's Day is coming, he decides to buy some presents for her.There are n pre 阅读全文
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最近心血来潮安装了linux系统后,本来打算使用Codeblocks (平时打ACM用的比较多),但是编译的时候一直报 ”It seems that this project has not been built yet.Do you want to build it now?"就很难受,百度找了很 阅读全文