N кол-во человек, как найти количество женщин, мужчин . Надо сделать это со структурами

typedef struct Human
{
   string last_name;
   char gender;
   unsigned char age;
} Human;

int men = 0, women = 0;

#include <iostream>
#include <string>
 
#define N 10
 
using namespace std;
 
typedef struct Human
{
   string last_name;
   char gender;
   unsigned char age;
} Human;
 
int main(void)
{
   Human people[N] = {
       {"Ivanov", 'm', 25},
       {"Petrova", 'f', 18},
       {"Sidorov", 'm', 70},
       {"Kuznetsova", 'f', 80},
       {"Pushkin", 'm', 70},
       {"Lermontov", 'm', 20},
       {"Tsvetaeva", 'f', 35},
       {"Straustroupe", 'm', 16},
       {"Testov", 'm', 24},
       {"Pivnova", 'f', 40},
   };
 
   unsigned men = 0, women = 0;
   unsigned sum_men_age = 0;
 
   for (int i = 0; i < N; ++i)
   {
      if (people[i].gender == 'm')
      {
         ++men;
         sum_men_age += people[i].age;
      }
      else
         ++women;
   }
 
   cout << "Number of men: " << men << endl;
   cout << "Number of women: " << women << endl;
   double avg_men_age = (double)sum_men_age / N;
   cout << "Avg men age: " << avg_men_age << endl;
 
   for (int i = 0; i < N; ++i)
   {
      if (people[i].gender == 'm' && people[i].age < avg_men_age)
         cout << people[i].last_name << " is younger than average" << endl;
   }
 
   return 0;
}