C++ Blatt 4 A10.cc

#include <iostream>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <random>
using namespace std;

double random_number() {
  return double (rand()) / RAND_MAX;
}

double prob(int n) {
  int h = 0, i = n;
  while (i--) {
    double x = random_number(), y = random_number();
    h += sqrt(x * x + y * y) <= 1;
  }
  return double(h) / double(n);
}

int main () {
  int n;
  srand(time(NULL));

  cout << "n: ";
  cin >> n;
  cout << "pi: " << prob(n) * 4 << endl;
}

C++ Blatt 4 A11.cc

#include <iostream>
#include <iomanip>
#include <fstream>
#include <cstdlib>
#include <sstream>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
  vector<string> teams;
  vector<int> sums;
  string line;
  ifstream file("a11-toredat.sec");

  while (getline(file, line)) {
    int n, id, sum = 0;
    istringstream stream(line);
    stream >> id;
    string team = "id: " + to_string(id) + " goals: ";
    while (stream >> n) {
      team += to_string(n) + " ";
      sum += n;
    }
    teams.push_back(team);
    sums.push_back(sum);
  }

  for (int i = 0; i < teams.size(); i++)
    cout << teams[i] << " sum: " << sums[i] << ((sums[i] == *max_element(sums.begin(), sums.end())) ? " champion" : "") << endl;
}