func_code_string: #include <bits/stdc++.h>   using namespace std;   map<int, int> working;   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     int n, q;     cin >> n >> q;     working[-1] = -1;     working[2E9] = 2E9;     working[1] = n;     int answer = n;     while (q--) {       int l, r, k;       cin >> l >> r >> k;       int haveNow = 0;       map<int, int>::iterator it = working.lower_bound(l);       it--;       if (it->second >= l) {         working[l] = it->second;         it->second = l - 1;       }       it++;       while (it->first <= r) {         if (it->second > r) {           haveNow += r + 1 - it->first;           working[r + 1] = it->second;         } else           haveNow += it->second - it->first + 1;         map<int, int>::iterator it2 = it;         it++;         working.erase(it2);       }       if (k == 1) {         answer -= haveNow;       } else {         answer -= haveNow;         working[l] = r;         answer += r - l + 1;       }       cout << answer <<   n ;     }     return 0;   }   