P34438: Països i províncies (2)

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


struct Provincia {
    string nom;
    string capital;
    int habitants;
    int area;
    double pib;
};

struct Pais {
    string nom;
    string capital;
    vector<Provincia> provs;
};

typedef vector<Pais> Paisos;

int habitants(const Paisos& p, double x) {
    int tam_p = p.size();
    int suma_hab = 0;
    for (int i = 0; i < tam_p; ++i) {
        int sum_provs_less_x = 0;
        int tam_provs = p[i].provs.size();
        for (int j = 0; j < tam_provs; ++j) {
            if (p[i].provs[j].pib <= x) ++sum_provs_less_x;
            if (sum_provs_less_x == 2) j = tam_provs;
        }
        if (sum_provs_less_x >= 2) {
            for (int j = 0; j < tam_provs; ++j) {
                suma_hab += p[i].provs[j].habitants;
            }
        }
    }
    return suma_hab;
}