在C++中聲明具有可變數量維度的多維向量

Question

我想要聲明具有可變維度數量（用戶輸入）的多維向量。

這裏是我有：

#include <vector> 
#include <algorithm> 
#include <iostream> 
using namespace std; 

vector<double> data; 

int main() { 
    int numberDimensions = 4; 
    for (int it = 0; it < numberDimensions; it++){ 
     // Nor sure what to put here 
    } 
    return 0; 
} 

另一種解決方案是使用if語句在開始時，但我在想，如果另一種解決方案存在？

#include <vector> 
#include <algorithm> 
#include <iostream> 
using namespace std; 

int main() { 
    int numberDimensions = 4; 
    if (numberDimensions==0) 
     cout << 'error' << endl; 
    else if (numberDimensions==1) 
     vector< double> data; 
    else if (numberDimensions==2) 
     vector< vector< double> > data; 
    else if (numberDimensions==3) 
     vector< vector< vector< double> > > data; 
    else if (numberDimensions==4) 
     vector< vector< vector< vector< double> > > > data; 
    return 0; 
} 

感謝您的任何建議，

Answer 1

如這裏的意見建議是我遵循的解決方案：

#include <vector> 
#include <algorithm> 
#include <iostream> 
using namespace std; 

vector<double> data; 

int main() { 

    std::vector<int> parameter1 {34,23,58}; 
    std::vector<int> parameter2 {1,2,3}; 

    data = vector<double> (parameter1.size()*parameter2.size()); 
    calculateResult(data); 

    // If I want to access the result for Parameter1 = 58 and Parameter = 2 I do: 
    int index1 = 2 
    int index2 = 1 
    double selectedResult = data[index1*parameter1.size()+index2]; 

    return 0; 
}