結果
問題 | No.812 Change of Class |
ユーザー |
|
提出日時 | 2019-04-19 11:44:13 |
言語 | C++11 (gcc 13.3.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,025 bytes |
コンパイル時間 | 1,977 ms |
コンパイル使用メモリ | 103,556 KB |
実行使用メモリ | 9,340 KB |
最終ジャッジ日時 | 2024-06-12 20:54:09 |
合計ジャッジ時間 | 6,090 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 12 WA * 48 |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:107:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 107 | int n, m; scanf("%d%d", &n,&m); | ~~~~~^~~~~~~~~~~~~~~ main.cpp:111:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 111 | scanf("%d", &q); | ~~~~~^~~~~~~~~~ main.cpp:113:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 113 | scanf("%d", &a); | ~~~~~^~~~~~~~~~ main.cpp: In member function ‘void Do_you_wanna_be_a_friend_of_mine::getFriends()’: main.cpp:76:12: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 76 | scanf("%d%d", &p, &q); p--; q--; | ~~~~~^~~~~~~~~~~~~~~~
ソースコード
#include <iostream> #include <list> #include <set> #include <deque> #include <queue> #include <stack> #include <vector> #include <algorithm> #include <map> #include <chrono> #include <math.h> using namespace std; using lli = long long int; using Vint = std::vector<int>; using Vlli = std::vector<lli>; using Wint = std::vector<Vint>; using Wlli = std::vector<Vlli>; using Vbool = std::vector<bool>; using pii = std::pair<int, int>; using pll = std::pair<lli, lli>; constexpr int MOD = 1e9 + 7; constexpr int INFi = 2e9 + 1; constexpr lli INFl = (lli)(9e18) + 1; const vector<pii> DXDY = {std::make_pair(1, 0), std::make_pair(-1, 0), std::make_pair(0, 1), std::make_pair(0, -1)}; constexpr char BR = '\n'; #define FOR(i, a, b) for(int (i) = (a); (i) < (b); (i)++) #define FOReq(i, a, b) for(int (i) = (a); (i) <= (b); (i)++) #define rFOR(i, a, b) for(int (i) = (b); (i) >= (a); i--) #define FORstep(i, a, b, step) for(int (i) = (a); i < (b); i += (step)) #define REP(i, n) FOR(i, 0, n) #define rREP(i, n) rFOR(i, 0, (n-1)) #define vREP(ele, vec) for(auto &(ele) : (vec)) #define vREPcopy(ele, vec) for(auto (ele) : (vec)) #define SORT(A) std::sort((A).begin(), (A).end()) // 座標圧縮 (for vector) : ソートしてから使うのが一般的 ; SORT(A) => COORDINATE_COMPRESSION(A) #define COORDINATE_COMPRESSION(A) (A).erase(unique((A).begin(),(A).end()),(A).end()) template <class T> inline int argmin(std::vector<T> vec){return min_element(vec.begin(), vec.end()) - vec.begin();} template <class T> inline int argmax(std::vector<T> vec){return max_element(vec.begin(), vec.end()) - vec.begin();} template <class T> inline void chmax(T &a, T b){a = max(a, b);} template <class T> inline void chmin(T &a, T b){a = min(a, b);} inline int toInt(string &s){int res = 0; for(char a : s) res = 10 * res + (a - '0'); return res;} inline int toInt(const string s){int res = 0; for(char a : s) res = 10 * res + (a - '0'); return res;} inline long long int toLong(string &s){lli res = 0; for(char a : s) res = 10 * res + (a - '0'); return res;} inline long long int toLong(const string s){lli res = 0; for(char a : s) res = 10 * res + (a - '0'); return res;} template <class T> inline std::string toString(T n){ if(n == 0) return "0"; std::string res = ""; if(n < 0){n = -n;while(n != 0){res += (char)(n % 10 + '0'); n /= 10;} std::reverse(res.begin(), res.end()); return '-' + res;} while(n != 0){res += (char)(n % 10 + '0'); n /= 10;} std::reverse(res.begin(), res.end()); return res; } // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ class Do_you_wanna_be_a_friend_of_mine{ private: const int n, m; std::vector<Vint> Friends; std::vector<bool> HasntVisited; public: Do_you_wanna_be_a_friend_of_mine(int nn, int mm): n(nn), m(mm){ Friends.resize(n, Vint(0)); HasntVisited.resize(n); } ~Do_you_wanna_be_a_friend_of_mine(void){}; void getFriends(void){ int p, q; REP(i, m){ scanf("%d%d", &p, &q); p--; q--; Friends.at(p).emplace_back(q); Friends.at(q).emplace_back(p); } } std::pair<int, int> solve(int a){ a--; REP(i, n) HasntVisited[i] = true; int numb = -1, height; std::queue<std::pair<int, int>> dfs; HasntVisited.at(a) = false; dfs.push(make_pair(a, 0)); int now; while(not dfs.empty()){ std::tie(now, height) = dfs.front(); dfs.pop(); vREP(friend_next, Friends.at(now)) if(HasntVisited.at(friend_next)){ HasntVisited.at(friend_next) = false; dfs.push(make_pair(friend_next, height + 1)); } numb++; } // heght := 1 => 0 // := 2 => 1 // := 3 => 2 // := 4 => 2 return make_pair(numb, (height <= 1) ? 0 : (height + 1) / 2); } }; int main(void){ int n, m; scanf("%d%d", &n,&m); Do_you_wanna_be_a_friend_of_mine solver(n, m); solver.getFriends(); int a, q, s, t; scanf("%d", &q); REP(_, q){ scanf("%d", &a); std::tie(s, t) = solver.solve(a); printf("%d %d\n", s, t); } return 0; }