修改下列代码错误#include<iostream> #include<vector> namespace my_seq { class Sequence { public: Sequence() { // 将vector初始化为500个0 data = std::vector<int>(500, 0); size = 0; } void set(std::vector<int>& seq) { size = seq.size(); for (int i = 0; i size size; ++i) { data[i] = seq[i]; } } int findSubSeq(std::vector<int>& subSeq) { int subSeqSize = subSeq.size(); for (int i = 0; i <= size - subSeqSize; ++i) { bool found = true; for (int j = 0; j sub subSeqSize; ++j) { if (data[i + j] != subSeq[j]) { found = false; break; } } if (found) { return i + 1; } } return -1; } private: std::vector<int> data; int size; }; } int main() { int m; std::cin >> m; std::vector<int> seq(m); for (int i = 0; i m m; ++i) { std::cin >> seq[i]; } my_seq::Sequence mySeq; mySeq.set(seq); int n; std::cin >> n; std::vector<int> subSeq(n); for (int i = 0; i < n; ++i) { std::cin >> subSeq[i]; } int start = mySeq.findSubSeq(subSeq); if (start == -1) { std::cout << "Subsequence not found" std std::endl; } else { std::cout << "Subsequence found at position " << start std std::endl; } return 0; }

代码中有两个错误：

1.在第28行，代码少了一个分号。

2.在第15行，应该是 i < size，而不是 i size size。

下面是修改后的代码：

#include<iostream> 
#include<vector> 

namespace my_seq {     
    class Sequence {     
    public:         
        Sequence() {             
            // 将vector初始化为500个0             
            data = std::vector<int>(500, 0);             
            size = 0;         
        }         
        void set(std::vector<int>& seq) {             
            size = seq.size();             
            for (int i = 0; i < size; ++i) {                 
                data[i] = seq[i];             
            }         
        }         
        int findSubSeq(std::vector<int>& subSeq) {             
            int subSeqSize = subSeq.size();             
            for (int i = 0; i <= size - subSeqSize; ++i) {                 
                bool found = true;                 
                for (int j = 0; j < subSeqSize; ++j) {                     
                    if (data[i + j] != subSeq[j]) {                         
                        found = false;                         
                        break;                     
                    }                 
                }                 
                if (found) {                                         
                    return i + 1;                 
                }             
            }             
            return -1;         
        }     
    private:         
        std::vector<int> data;         
        int size;     
    }; 
}  

int main() {     
    int m;     
    std::cin >> m;     
    std::vector<int> seq(m);     
    for (int i = 0; i < m; ++i) {         
        std::cin >> seq[i];     
    }     
    my_seq::Sequence mySeq;     
    mySeq.set(seq);     
    int n;     
    std::cin >> n;     
    std::vector<int> subSeq(n);     
    for (int i = 0; i < n; ++i) {         
        std::cin >> subSeq[i];     
    }     
    int start = mySeq.findSubSeq(subSeq);     
    if (start == -1) {         
        std::cout << "Subsequence not found" << std::endl;     
    } else {         
        std::cout << "Subsequence found at position " << start << std::endl;     
    }     
    return 0; 
}

请注意，我只是根据常见错误进行了修改，如果还有其他问题，您需要提供更多信息。