Submission #1242781

#TimeUsernameProblemLanguageResultExecution timeMemory
1242781domi이상적인 도시 (IOI12_city)C++20
0 / 100
4 ms1092 KiB
#include<bits/stdc++.h> using namespace std; // const int64_t MOD = 1e9; // int64_t n; map<int64_t, vector<int64_t>>lin, col; // // int64_t solve(map<int64_t, vector<int64_t>>& mp) { // vector<vector<int64_t>>T; // map<pair<int64_t, int64_t>, int64_t>id; // vector<int64_t>s; // int64_t cnt = 0, idx = 0; // // for (auto &[v, ap] : mp) { // sort(ap.begin(), ap.end()); // ++idx; // // for (int64_t i = 0; i < ap.size(); ++i) { // if (i == 0 || ap[i] != ap[i - 1] + 1) { // ++cnt; // T.push_back({}); // s.push_back(0); // } // // id[{v, ap[i]}] = cnt; // ++s.back(); // // if (idx != 1 && id.find({v - 1, ap[i]}) != id.end() && (T[cnt].empty() || id[{v - 1, ap[i]}]) != T[cnt].back()) { // T[cnt].push_back(id[{v - 1, ap[i]}]); // T[id[{v - 1, ap[i]}]].push_back(cnt); // } // } // } // // vector<int64_t>SZ(cnt + 1, 0); // int64_t ans = 0; // // function<void(int64_t, int64_t)> dfs = [&](int64_t nod, int64_t p) { // SZ[nod] = s[nod] - 1; // // for (int64_t &son : T[nod]) { // if (son == p) continue; // // dfs(son, nod); // SZ[nod] += SZ[son]; // ans += (n - SZ[son]) * SZ[son]; // } // }; // dfs(0, -1); // return 0; // } int DistanceSum(int N, int *X, int *Y) { n = N; for (int64_t i = 0; i < N; ++i) { col[X[i]].push_back(Y[i]); lin[Y[i]].push_back(X[i]); } return 0; }
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