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QuestionMatrix not getting initialized Pin
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QuestionHow to find the index of smallest 3 elements in an array Pin
User 1350945030-Nov-17 2:06
professionalUser 1350945030-Nov-17 2:06 
How can we find the index of smallest 3 elements in an array. Below code finds the index of largest 3 elements in an array.

C++
#include <vector>
#include <iostream>

using namespace std;

int main()
{
  double arr[] = {0.2, 1.0, 0.01, 3.0, 0.002, -1.0, -20};
  
  priority_queue < pair<double, int> > pQueue;
  
  for (int i = 0; i < 7; i++) 
  {
    pQueue.push(pair<double, int>(arr[i], i));
  }
  
  int k = 3; // number of indices we need
  
  for (int i = 0; i < k; ++i) 
  {
    int ki = pQueue.top().second;
    cout << ki << " ";
    pQueue.pop();
  }
  
}


modified 29-Jan-21 21:01pm.

AnswerRe: How to find the index of smallest 3 elements in an array Pin
Jochen Arndt30-Nov-17 2:24
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GeneralRe: How to find the index of smallest 3 elements in an array Pin
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GeneralRe: How to find the index of smallest 3 elements in an array Pin
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GeneralRe: How to find the index of smallest 3 elements in an array Pin
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QuestionPrecision in C Pin
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AnswerRe: Precision in C Pin
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Questionwhat is contained in iostream and std Pin
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QuestionC++ cout in header file error - ‘cout’ was not declared in this scope Pin
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