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# bdfu_2024_summer
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# bdfz_2024_summer
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# 题目经验总结
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# 题目经验总结
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## Day2
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## Day2
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### [U111091 区间2段覆盖](./day2/U111091/U111091.md)
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### [U111091 区间2段覆盖](./day2/U111091/U111091.md)
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return a * _ksm(b, M - 2,M) % M;
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return a * _ksm(b, M - 2,M) % M;
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}
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}
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```
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```
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### 比赛疑问
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#### [公平的竞争(fair)](./day5/statement.pdf)
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##### $x=2+ {{x}\over{4}}$ => $x = {{8} \over 3}$是怎么得出来的
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# 排序
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# 排序
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## 稳定性
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## 稳定性
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using namespace std;
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using namespace std;
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#define ll long long
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#define ll long long
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const int MAX_NK=5e3+5;
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int n,k;
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int main(){
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int main(){
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cin>>n>>k;
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for(int i=1;i<=n;i++){
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}
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}
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}
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