Sorting of Vector of Tuple in C++ (Ascending Order) Last Updated : 11 Jul, 2025 Comments Improve Suggest changes Like Article Like Report What is the Vector of a Tuple?A tuple is an object that can hold several elements and a vector containing multiple numbers of such a tuple is called a vector of the tuple. The elements can be of different data types. The elements of tuples are initialized as arguments in the order in which they will be accessed. CPP // C++ program to demonstrate vector of tuple #include <bits/stdc++.h> using namespace std; int main() { vector<tuple<int, int, int> > v; v.push_back(make_tuple(10, 20, 30)); v.push_back(make_tuple(15, 5, 25)); v.push_back(make_tuple(3, 2, 1)); // Printing vector tuples for (int i = 0; i < v.size(); i++) cout << get<0>(v[i]) << " " << get<1>(v[i]) << " " << get<2>(v[i]) << "\n"; return 0; } Output10 20 30 15 5 25 3 2 1 Different ways to sort vector of tuplesCase 1 : Sorting the vector elements on the basis of first element of tuples in ascending order.This type of sorting can be achieved using simple “sort() ” function. By default the sort function sorts the vector elements on basis of first element of tuples. CPP // C++ program to demonstrate sorting in // vector of tuple according to 1st element // of tuple #include <bits/stdc++.h> using namespace std; int main() { vector<tuple<int, int, int> > v; v.push_back(make_tuple(10, 20, 30)); v.push_back(make_tuple(15, 5, 25)); v.push_back(make_tuple(3, 2, 1)); // Using sort() function to sort by 1st // element of tuple sort(v.begin(), v.end()); cout << "Sorted Vector of Tuple on basis" " of first element of tuple:\n"; for (int i = 0; i < v.size(); i++) cout << get<0>(v[i]) << " " << get<1>(v[i]) << " " << get<2>(v[i]) << "\n"; return 0; } OutputSorted Vector of Tuple on basis of first element of tuple: 3 2 1 10 20 30 15 5 25 Case 2 : Sorting the vector elements on the basis of second element of tuples in ascending order.There are instances when we require to sort the elements of vector on the basis of second elements of tuples. For that, we modify the sort() function and we pass a third argument, a call to an user defined explicit function in the sort() function. CPP // C++ program to demonstrate sorting in vector // of tuple according to 2nd element of tuples #include <bits/stdc++.h> using namespace std; // Comparison function to sort the vector elements // by second element of tuples static bool sortbysec(const tuple<int, int, int>& a, const tuple<int, int, int>& b) { return (get<1>(a) < get<1>(b)); } int main() { vector<tuple<int, int, int> > v; v.push_back(make_tuple(10, 20, 30)); v.push_back(make_tuple(15, 5, 25)); v.push_back(make_tuple(3, 2, 1)); // Using sort() function to sort by 2nd element // of tuple sort(v.begin(), v.end(), sortbysec); cout << "Sorted Vector of Tuple on basis" " of Second element of tuple:\n"; for (int i = 0; i < v.size(); i++) cout << get<0>(v[i]) << " " << get<1>(v[i]) << " " << get<2>(v[i]) << "\n"; return 0; } OutputSorted Vector of Tuple on basis of Second element of tuple: 3 2 1 15 5 25 10 20 30 Case 3 : Sorting the vector elements on the basis of third element of tuples in ascending order.There are instances when we require to sort the elements of vector on the basis of third elements of tuples. For that, we modify the sort() function and we pass a third argument, a call to an user defined explicit function in the sort() function. CPP // C++ program to demonstrate sorting in vector // of tuple according to 3rd element of tuple #include <bits/stdc++.h> using namespace std; // Driver function to sort the vector elements // by third element of tuple static bool sortbyth(const tuple<int, int, int>& a, const tuple<int, int, int>& b) { return (get<2>(a) < get<2>(b)); } int main() { vector<tuple<int, int, int> > v; v.push_back(make_tuple(10, 20, 30)); v.push_back(make_tuple(15, 5, 25)); v.push_back(make_tuple(3, 2, 1)); // Using sort() function to sort by 3rd element // of tuple sort(v.begin(), v.end(), sortbyth); cout << "Sorted Vector of Tuple on basis" " of Third element of tuple:\n"; for (int i = 0; i < v.size(); i++) cout << get<0>(v[i]) << " " << get<1>(v[i]) << " " << get<2>(v[i]) << "\n"; return 0; } OutputSorted Vector of Tuple on basis of Third element of tuple: 3 2 1 15 5 25 10 20 30 Comment More infoAdvertise with us Next Article Introduction to C++ Programming Language S suri_kumkaran Follow Improve Article Tags : C++ Practice Tags : CPP Similar Reads C++ Programming Language C++ is a computer programming language developed by Bjarne Stroustrup as an extension of the C language. 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For example, if we want to print 4 min read C++ Control StatementsDecision Making in C (if , if..else, Nested if, if-else-if )In C, programs can choose which part of the code to execute based on some condition. This ability is called decision making and the statements used for it are called conditional statements. These statements evaluate one or more conditions and make the decision whether to execute a block of code or n 7 min read C++ if StatementThe C++ if statement is the most simple decision-making statement. It is used to decide whether a certain statement or block of statements will be executed or not executed based on a certain condition. Let's take a look at an example:C++#include <iostream> using namespace std; int main() { int 3 min read C++ if else StatementThe if statement alone tells us that if a condition is true it will execute a block of statements and if the condition is false, it won’t. But what if we want to do something else if the condition is false. Here comes the C++ if else statement. We can use the else statement with if statement to exec 3 min read C++ if else if LadderIn C++, the if-else-if ladder helps the user decide from among multiple options. The C++ if statements are executed from the top down. As soon as one of the conditions controlling the if is true, the statement associated with that if is executed, and the rest of the C++ else-if ladder is bypassed. I 3 min read Switch Statement in C++In C++, the switch statement is a flow control statement that is used to execute the different blocks of statements based on the value of the given expression. It is a simpler alternative to the long if-else-if ladder.SyntaxC++switch (expression) { case value_1: // code to be executed. break; case v 5 min read Jump statements in C++Jump statements are used to manipulate the flow of the program if some conditions are met. 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This statement does not mandatorily need any conditional statements. As soon as the statement is executed, the flow of the program stops immediately and returns the control from where it was calle 4 min read Parameter Passing Techniques in CIn C, passing values to a function means providing data to the function when it is called so that the function can use or manipulate that data. Here:Formal Parameters: Variables used in parameter list in a function declaration/definition as placeholders. Also called only parameters.Actual Parameters 3 min read Difference Between Call by Value and Call by Reference in CFunctions can be invoked in two ways: Call by Value or Call by Reference. These two ways are generally differentiated by the type of values passed to them as parameters.The following table lists the differences between the call-by-value and call-by-reference methods of parameter passing.Call By Valu 4 min read Default Arguments in C++A default argument is a value provided for a parameter in a function declaration that is automatically assigned by the compiler if no value is provided for those parameters in function call. If the value is passed for it, the default value is overwritten by the passed value.Example:C++#include <i 5 min read Inline Functions in C++In C++, inline functions provide a way to optimize the performance of the program by reducing the overhead related to a function call. When a function is specified as inline the whole code of the inline function is inserted or substituted at the point of its call during the compilation instead of us 6 min read Lambda Expression in C++C++ 11 introduced lambda expressions to allow inline functions which can be used for short snippets of code that are not going to be reused. Therefore, they do not require a name. They are mostly used in STL algorithms as callback functions.Example:C++#include <iostream> using namespace std; i 4 min read C++ Pointers and ReferencesPointers and References in C++In C++ pointers and references both are mechanisms used to deal with memory, memory address, and data in a program. Pointers are used to store the memory address of another variable whereas references are used to create an alias for an already existing variable. Pointers in C++ Pointers in C++ are a 5 min read C++ PointersA pointer is a special variable that holds the memory address of another variable, rather than storing a direct value itself. Pointers allow programs to access and manipulate data in memory efficiently, making them a key feature for system-level programming and dynamic memory management. When we acc 8 min read Dangling, Void , Null and Wild Pointers in CIn C programming pointers are used to manipulate memory addresses, to store the address of some variable or memory location. But certain situations and characteristics related to pointers become challenging in terms of memory safety and program behavior these include Dangling (when pointing to deall 6 min read Applications of Pointers in CPointers in C are variables that are used to store the memory address of another variable. Pointers allow us to efficiently manage the memory and hence optimize our program. In this article, we will discuss some of the major applications of pointers in C. Prerequisite: Pointers in C. C Pointers Appl 4 min read Understanding nullptr in C++Consider the following C++ program that shows problem with NULL (need of nullptr) CPP // C++ program to demonstrate problem with NULL #include <bits/stdc++.h> using namespace std; // function with integer argument void fun(int N) { cout << "fun(int)"; return;} // Overloaded fun 3 min read References in C++In C++, a reference works as an alias for an existing variable, providing an alternative name for it and allowing you to work with the original data directly.Example:C++#include <iostream> using namespace std; int main() { int x = 10; // ref is a reference to x. int& ref = x; // printing v 5 min read Can References Refer to Invalid Location in C++?Reference Variables: You can create a second name for a variable in C++, which you can use to read or edit the original data contained in that variable. While this may not sound appealing at first, declaring a reference and assigning it a variable allows you to treat the reference as if it were the 2 min read Pointers vs References in C++Prerequisite: Pointers, References C and C++ support pointers, which is different from most other programming languages such as Java, Python, Ruby, Perl and PHP as they only support references. But interestingly, C++, along with pointers, also supports references. On the surface, both references and 5 min read Passing By Pointer vs Passing By Reference in C++In C++, we can pass parameters to a function either by pointers or by reference. In both cases, we get the same result. So, what is the difference between Passing by Pointer and Passing by Reference in C++?Let's first understand what Passing by Pointer and Passing by Reference in C++ mean:Passing by 5 min read When do we pass arguments by pointer?In C, the pass-by pointer method allows users to pass the address of an argument to the function instead of the actual value. This allows programmers to change the actual data from the function and also improve the performance of the program. In C, variables are passed by pointer in the following ca 5 min read Like