func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MOD = 1e9 + 7;   const long long INF = 1e18;   const int MAXN = 2e5 + 5;   const int T = 1e3 + 10;   int dx[] = {-1, 1, 0, 0};   int dy[] = {0, 0, -1, 1};   long long binpow(long long val, long long deg) {     if (!deg) return 1;     if (deg & 1) return binpow(val, deg - 1) * val % MOD;     long long res = binpow(val, deg / 2);     return (res * res) % MOD;   }   long long inv(long long a) { return binpow(a, MOD - 2); }   pair<int, int> operator+(const pair<int, int>& a, const pair<int, int>& b) {     return make_pair(a.first + b.first, a.second + b.second);   }   pair<int, int> operator-(const pair<int, int>& a, const pair<int, int>& b) {     return make_pair(a.first - b.first, a.second - b.second);   }   void rotate90(int& first, int& second, int x0, int y0) {     first = first - x0;     second = second - y0;     swap(first, second);     first = -first;     first += x0;     second += y0;   }   long long i, j;   long long n, m;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     cout << fixed;     cout.precision(10);     cin >> n >> m;     set<int> column, line;     while (m--) {       int first, second;       cin >> first >> second;       column.insert(first);       line.insert(second);       cout << (n - column.size()) * (n - line.size()) <<    ;     }     return 0;   }   