func_code_string: #include <bits/stdc++.h>   using namespace std;   struct masivs {     long long in;     long long out;     long long poz;   };   masivs mas[100005];   long long i, j, k, n, m, a, b, c;   vector<pair<pair<long long, long long>, long long> > ab;   int main() {     std::cin.sync_with_stdio(false);     std::cin.tie(0);     cin >> n >> m;     i = 0;     while (i < n) {       mas[i].poz = i;       i++;     }     i = 0;     while (i < m) {       cin >> a >> b >> c;       a--;       b--;       mas[a].in += c;       mas[b].out += c;       k = min(mas[a].in, mas[a].out);       mas[a].in -= k;       mas[a].out -= k;       k = min(mas[b].in, mas[b].out);       mas[b].in -= k;       mas[b].out -= k;       i++;     }     j = 0;     i = 0;     while (i < n) {       while (mas[i].in) {         while (mas[j].out == 0) {           j++;         }         k = min(mas[i].in, mas[j].out);         ab.push_back({{i + 1, j + 1}, k});         mas[i].in -= k;         mas[j].out -= k;       }       i++;     }     cout << ab.size() <<   n ;     for (j = 0; j < ab.size(); j++) {       cout << ab[j].first.first <<     << ab[j].first.second <<                << ab[j].second <<   n ;     }     return 0;   }   