How to Create a Vector of Tuples in C++?
Last Updated :
22 Feb, 2024
In C++, a tuple is an object that allows the users to store elements of various data types together while a vector is used to store elements of the same data types. In this article, we will learn how we can create a vector of tuples in C++.
Example:
Input:
Tuple1 ={10,A,5.3} Tuple2= {20,B,6.5}
Output:
Vector Elements:
Tuple 1: 10, A, 5.3
Tuple 2: 20, B, 6.5
Vector of Tuples in C++
To create a vector of tuples, we will have to first declare a vector of type tuple. It means that each element of the vector will be a tuple. Moreover, we also have to specify the type of tuple.
Syntax
vector<tuple<type1, type2, ...>> myVector.
We can simply use the std::make_tuple() method to insert the data into the vector.
For traversing, we can use the tuple::get() method to iterate over the elements of the tuple present in the vector.
C++ Program to Create a Vector of Tuples
C++
#include <iostream>
#include <vector>
#include <tuple>
using namespace std;
int main() {
vector<tuple< int , char , float >> vecOfTuples;
vecOfTuples.push_back(make_tuple(10, 'A' , 3.14));
vecOfTuples.push_back(make_tuple(20, 'B' , 6.28));
vecOfTuples.push_back(make_tuple(30, 'C' , 9.42));
vecOfTuples.push_back(make_tuple(40, 'D' , 10.8));
int i=1;
cout<< "Vector Elements:" <<endl;
for ( const auto & tuple : vecOfTuples) {
cout << "Tuple " <<i<< ": " << get<0>(tuple) << ", " << get<1>(tuple) << ", " << get<2>(tuple) << endl;
i++;
}
return 0;
}
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Output
Vector Elements:
Tuple 1: 10, A, 3.14
Tuple 2: 20, B, 6.28
Tuple 3: 30, C, 9.42
Tuple 4: 40, D, 10.8
Time Complexity: O(N) where N is the number of tuples inside the vector
Auxiliary Space: O(N)
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