seq[(int, int)] => map[int, int]' 不接受形参

这个错误可能是因为你在定义函数时，没有为形参指定参数名。在 Python 中，函数的形参必须指定参数名，并且参数名必须是一个合法的标识符。

例如，如果你想要定义一个函数，将一个元组的元素转换成一个字典，可以这样写：

def tuple_to_dict(t: tuple) -> dict:
    return dict(t)

在这个例子中，形参 `t` 的类型注解指定为 `tuple`，函数返回值的类型注解指定为 `dict`。在函数体内，我们使用内置函数 `dict` 将元组转换成字典，并将其作为函数的返回值。

如果你使用这个函数时，给定一个元组 `(1, 2)`，它将返回一个字典 `{1: 2}`。

相关问题

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。

帮我改以下代码的错#include <stdio.h> int main() { int mem_page_num=3; int seq_len=17; int page_seq[] = { 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2, 1, 2, 0, 1 }; int result = opt_missing_page_num(page_seq, seq_len, mem_page_num); printf("%d", result); return 0; } int opt_missing_page_num(int page_seq[], int seq_len, int mem_page_num) { int mem_page[mem_page_num]; int page_fault = 0; int next_use[mem_page_num]; int i, j, k, max_next_use; for (i = 0; i < mem_page_num; i++) { mem_page[i] = -1; next_use[i] = seq_len; } for (i = 0; i < seq_len; i++) { int page = page_seq[i]; int found = 0; for (j = 0; j < mem_page_num; j++) { if (mem_page[j] == page) { found = 1; next_use[j] = seq_len; break; } } if (!found) { int victim = -1; for (j = 0; j < mem_page_num; j++) { int use_time = next_use[j]; if (use_time < seq_len && (victim == -1 || use_time < next_use[victim])) { victim = j; } } mem_page[victim] = page; next_use[victim] = seq_len; page_fault++; } for (j = 0; j < mem_page_num; j++) { int page2 = mem_page[j]; if (page2 != -1) { found = 0; max_next_use = -1; for (k = i + 1; k < seq_len; k++) { if (page_seq[k] == page2) { found = 1; max_next_use = k; break; } } if (!found) { max_next_use = seq_len; } next_use[j] = max_next_use; } } } return page_fault; }

这段代码中的问题是缺少函数的声明，需要在main函数前面加上函数声明：

#include <stdio.h> 

int opt_missing_page_num(int page_seq[], int seq_len, int mem_page_num); 

int main() { 
    int mem_page_num=3; 
    int seq_len=17; 
    int page_seq[] = { 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2, 1, 2, 0, 1 }; 
    int result = opt_missing_page_num(page_seq, seq_len, mem_page_num); 
    printf("%d", result); 
    return 0; 
} 

int opt_missing_page_num(int page_seq[], int seq_len, int mem_page_num) { 
    int mem_page[mem_page_num]; 
    int page_fault = 0; 
    int next_use[mem_page_num]; 
    int i, j, k, max_next_use; 
    for (i = 0; i < mem_page_num; i++) { 
        mem_page[i] = -1; 
        next_use[i] = seq_len; 
    } 
    for (i = 0; i < seq_len; i++) { 
        int page = page_seq[i]; 
        int found = 0; 
        for (j = 0; j < mem_page_num; j++) { 
            if (mem_page[j] == page) { 
                found = 1; 
                next_use[j] = seq_len; 
                break; 
            } 
        } 
        if (!found) { 
            int victim = -1; 
            for (j = 0; j < mem_page_num; j++) { 
                int use_time = next_use[j]; 
                if (use_time < seq_len && (victim == -1 || use_time < next_use[victim])) { 
                    victim = j; 
                } 
            } 
            mem_page[victim] = page; 
            next_use[victim] = seq_len; 
            page_fault++; 
        } 
        for (j = 0; j < mem_page_num; j++) { 
            int page2 = mem_page[j]; 
            if (page2 != -1) { 
                found = 0; 
                max_next_use = -1; 
                for (k = i + 1; k < seq_len; k++) { 
                    if (page_seq[k] == page2) { 
                        found = 1; 
                        max_next_use = k; 
                        break; 
                    } 
                } 
                if (!found) { 
                    max_next_use = seq_len; 
                } 
                next_use[j] = max_next_use; 
            } 
        } 
    } 
    return page_fault; 
}