Question

language c++ finish the code and hurry in an exam with less then 30 minutes

#include <iostream>

#include <vector>

using namespace std;

int find(vector<int> & v, int value);

int main(){

vector<int> myVec = {2,30,10,50,100,32,19,43, 201, 311, 99,77,45,15,95, 105, 32, 15};

//complete code here

cout << "First Element is: " << endl;

cout << "Last Element is: " << endl;

cout << "The number of elements is: " << endl;

  

//Complete the missing code

cout << "Find 201 : result is at index " << endl;

cout << "Find 299 : result is at index " << endl;

  

return 0;

  

}

int find(vector<int> & v, int value){

//complete the code here

  

return -1;

}

  

  

  

  

return 0;

}

output should be like this

first element is : 2

Last element is :15

the number of element is :18

write a function find that takes in the vector and the value you would like to find

int find(vector<int)> & v, int value)

find 201: result is at index 8

find 299: result is at index -1

Answer 1

C++ CODE:

#include <iostream>
#include <vector>

using namespace std;

int find(vector<int> & v, int value);

int main(){
    vector<int> myVec = {2,30,10,50,100,32,19,43, 201, 311, 99,77,45,15,95, 105, 32, 15};
    //complete code here
    cout << "First Element is: " << myVec.at(0) << endl;
    cout << "Last Element is: " << myVec.at(myVec.size() - 1) << endl;
    cout << "The number of elements is: " << myVec.size() << endl;
    //Complete the missing code
    cout << "Find 201 : result is at index " << find(myVec, 201) << endl;
    cout << "Find 299 : result is at index " << find(myVec, 299) << endl;

    return 0;
}

int find(vector<int> & v, int value){
    //complete the code here
    for(int i = 0; i < v.size(); i++){
        if(v.at(i) == value)
            return i;
    }
    return -1;
}

OUTPUT: