func_code_string: #include <bits/stdc++.h>   using namespace std;   int gcd(int a, int b) { return b == 0 ? a : gcd(b, a % b); }   const int MAXN = 100000;   const int MAXQ = 200000;   int nq;   int qkind[MAXQ], qx[MAXQ], qy[MAXQ], qans[MAXQ];   int n;   map<pair<int, int>, int> mp;   int px[MAXN], py[MAXN], pl[MAXN], pr[MAXN];   map<long long, vector<int>> byrad;   map<pair<int, int>, vector<pair<int, int>>> matches;   map<pair<int, int>, vector<pair<int, int>>> singles;   map<pair<int, int>, vector<int>> queries;   void run() {     scanf( %d , &nq);     for (int i = (0); i < (nq); ++i) scanf( %d%d%d , &qkind[i], &qx[i], &qy[i]);     n = 0;     mp.clear();     for (int i = (0); i < (nq); ++i) {       if (qkind[i] == 1) {         int id = n++;         pair<int, int> key = make_pair(qx[i], qy[i]);         assert(!mp.count(key));         mp[key] = id;         px[id] = qx[i], py[id] = qy[i], pl[id] = i, pr[id] = -1;       }       if (qkind[i] == 2) {         pair<int, int> key = make_pair(qx[i], qy[i]);         assert(mp.count(key));         int id = mp[key];         mp.erase(key);         pr[id] = i;       }       if (qkind[i] == 3) {         qans[i] = ((int)(mp).size());       }     }     for (auto it = mp.begin(); it != mp.end(); ++it) {       int id = it->second;       pr[id] = nq;     }     mp.clear();     for (int i = (0); i < (n); ++i)       byrad[(long long)px[i] * px[i] + (long long)py[i] * py[i]].push_back(i);     for (auto it = byrad.begin(); it != byrad.end(); ++it) {       vector<int> lst = it->second;       for (int ii = (0); ii < (((int)(lst).size())); ++ii)         for (int jj = (ii + 1); jj < (((int)(lst).size())); ++jj) {           int i = lst[ii], j = lst[jj];           int l = max(pl[i], pl[j]), r = min(pr[i], pr[j]);           if (l > r) continue;           assert(px[i] != px[j] || py[i] != py[j]);           int cx = px[i] + px[j], cy = py[i] + py[j], g = gcd(cx, cy);           cx /= g, cy /= g;           matches[make_pair(cx, cy)].push_back(make_pair(l, r));         }     }     for (int i = (0); i < (n); ++i) {       int cx = px[i], cy = py[i], g = gcd(cx, cy);       cx /= g, cy /= g;       singles[make_pair(cx, cy)].push_back(make_pair(pl[i], pr[i]));     }     for (int i = (0); i < (nq); ++i)       if (qkind[i] == 3) {         int cx = qx[i], cy = qy[i], g = gcd(cx, cy);         cx /= g, cy /= g;         queries[make_pair(cx, cy)].push_back(i);       }     for (auto it = queries.begin(); it != queries.end(); ++it) {       vector<int> cqueries = it->second;       vector<pair<int, int>> cmatches = matches[it->first];       vector<pair<int, int>> csingles = singles[it->first];       vector<pair<int, int>> evt;       for (int i = (0); i < (((int)(cmatches).size())); ++i)         evt.push_back(make_pair(cmatches[i].first, -2)),             evt.push_back(make_pair(cmatches[i].second + 1, +2));       for (int i = (0); i < (((int)(csingles).size())); ++i)         evt.push_back(make_pair(csingles[i].first, -1)),             evt.push_back(make_pair(csingles[i].second + 1, +1));       sort(cqueries.begin(), cqueries.end());       sort(evt.begin(), evt.end());       int at = 0, sum = 0;       for (int i = (0); i < (((int)(cqueries).size())); ++i) {         int id = cqueries[i];         while (at < ((int)(evt).size()) && id >= evt[at].first)           sum += evt[at++].second;         qans[id] += sum;       }     }     for (int i = (0); i < (nq); ++i)       if (qkind[i] == 3) printf( %d n , qans[i]);   }   int main() {     run();     return 0;   }   