What\'s wrong with this code? I don\'t know why it\'s not working #include <iost

Question

What's wrong with this code? I don't know why it's not working

#include <iostream>
using namespace std;

class People {
   std::string name;
   double height;

public:
   void setName(string name) {
       this->name = name;
   }

   void setHeight(double height) {
       this->height = height;
   }

   double getHeight() {
       return height;
   }

   std::string getName() {
       return name;
   }

};

int main()
{
   People people[100];
   string name;
   double height;

   int tallest = 0;
   int smallest = 0;

   for (int i = 0; i<100; i++) {
       cout << " Enter name";
       cin >> name;
       cout << " Enter height";
       cin >> height;
       people[i].setName(name);
       people[i].setHeight(height);
       if (people[tallest].getHeight() < height) {
           tallest = i;
       }

       if (people[smallest].getHeight() > height) {
           smallest = i;
       }
   }

   cout << " The tallest person is " << people[tallest].getName();
   cout << " The smallest person is " << people[smallest].getName();
   return 0;
}

Explanation / Answer

#include <iostream>
using namespace std;
class People {
string name;
double height;
public:
void setName(string name) {
this->name = name;
}
void setHeight(double height) {
this->height = height;
}
double getHeight() {
return height;
}
string getName() {
return name;
}
};
int main()
{
string name;
double height;
double tallest;
double smallest;
int no_of_persons;
int tallindex,smallindex;
cout<<"How many persons height you want to compare :";
cin>>no_of_persons;
  
People people[no_of_persons];
  
for (int i = 0; i<no_of_persons; i++) {
cout << " Person "<<i+1<<" name :";
cin >> name;
cout << " Person "<<i+1<<" height :";
cin >> height;
people[i].setName(name);
people[i].setHeight(height);
cout<<endl;
}
  
tallest=people[0].getHeight();
smallest=people[0].getHeight();
  
for(int i=0;i<no_of_persons;i++)
{
if (tallest<people[i].getHeight())
       {
          
           tallest=people[i].getHeight();
tallindex=i;
}
  
   if (smallest>people[i].getHeight())
       {
           smallest=people[i].getHeight();
smallindex=i;
}

   }
cout << " The tallest person is " << people[tallindex].getName()<<endl;
cout << " The smallest person is " << people[smallindex].getName()<<endl;
return 0;
}

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