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c++ find index of an element

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intricate_symbol answered on February 22, 2020 Popularity 10/10 Helpfulness 7/10

answer c++ find index of an element

related get index of value c++

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c++ find index of an element

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

int main()
{
    vector<int> v = {1,2,3,4,6,4,5};
    // Get index of element from iterator
    int index = distance(v.begin(), find(v.begin(), v.end(), 4));
    cout << index;
}

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Contributed on Feb 16 2022

intricate_symbol

0 Answers Avg Quality 2/10

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get index of value c++

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vector<int> arr = { 6, 3, 5, 2, 8 };
vector<int>::iterator itr = std::find(arr.begin(), arr.end(), elem);

if (itr != end(arr)) {
	cout << "Element " << elem << " is present at index " << distance(arr, itr) << " in the given array";
}
else {
	cout << "Element is not present in the given array";
}

Popularity 10/10 Helpfulness 4/10 Language cpp

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Tags: c++

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Contributed on Feb 22 2020

k-vernooy

0 Answers Avg Quality 2/10

c++ find index of element in array

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int valueIndex = std::distance(
  yourArray, 
  std::find(
    yourArray, 
    yourArray + sizeof(yourArray) / sizeof(yourArray[0]),
    yourValueToFind));

Popularity 9/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on May 10 2022

Inquisitive Iguana

0 Answers Avg Quality 2/10

c++ find index of an element

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get index of value c++

c++ find index of element in array

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