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Zengtudor 2024-09-18 23:56:11 +08:00
parent 2264591687
commit 29b79d9b8d
1 changed files with 2 additions and 19 deletions
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21
src/main.cpp
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@ -34,32 +34,15 @@ void reverseComplement(auto &DNAsequence, const size_t buf_size) //注意这里
{'C', 'G'}, {'c', 'G'},
{'G', 'C'}, {'g', 'C'}
};
for(std::remove_const_t<decltype(buf_size)> i=0 ; i<=(buf_size/2) ; i++){ //注意边界条件
const auto left=i,right=buf_size-i;
const auto lit = complement.find(DNAsequence[left]);
const auto rit = complement.find(DNAsequence[right]);
if(rit!=complement.end()&&rit!=complement.end())[[likely]]{ // likely 表示 这个if分支更容易访问到
DNAsequence[left] = lit->second;
DNAsequence[left] = rit->second;
std::swap(DNAsequence[left],DNAsequence[right]);
}
}
/*
旧算法
//旧算法
std::reverse(DNAsequence.begin(), DNAsequence.begin() + buf_size); //翻转DNA序列 //太耗时，一遍过
for (std::remove_const_t<decltype(buf_size)> i = 0; i < buf_size; ++i) {
for (std::remove_const_t<decltype(buf_size)> i = 0; i < buf_size; ++i) { //std::remove_const_t<decltype(buf_size)>意思是和buf_size相同的类型并去掉const
auto it = complement.find(DNAsequence[i]);//查表并替换
if (it != complement.end()) {
DNAsequence[i] = it->second;
}
}
*/
}