제출 #203274

#제출 시각아이디문제언어결과실행 시간메모리
203274RakhmandDesignated Cities (JOI19_designated_cities)C++14
7 / 100
446 ms30080 KiB
// // ROIGold.cpp // Main calisma // // Created by Rakhman on 05/02/2019. // Copyright © 2019 Rakhman. All rights reserved. // #include <cstring> #include <vector> #include <list> #include <map> #include <set> #include <deque> #include <stack> #include <bitset> #include <algorithm> #include <functional> #include <numeric> #include <utility> #include <sstream> #include <iostream> #include <iomanip> #include <cstdio> #include <queue> #include <cmath> #include <cstdlib> #include <ctime> #include <cassert> #include <iterator> #define ios ios_base::sync_with_stdio(0), cout.tie(0), cin.tie(0); #define S second #define F first #define pb push_back #define nl '\n' #define NL cout << '\n'; #define EX exit(0) #define all(s) s.begin(), s.end() #define FOR(i, start, finish, k) for(int i = start; i <= finish; i += k) const int MXN = 2e5 + 1; const long long MNN = 1e6 + 200; const long long MOD = 1e9 + 7; const long long INF = 1e18; const int OO = 1e9 + 500; typedef long long llong; typedef unsigned long long ullong; using namespace std; void istxt(bool yes){ if(yes == 1){ freopen("balancing.in", "r", stdin); //freopen("/Users/rakhmanabdirashov/Desktop/folder/Programming/Road2Master/Road2Master/e.txt", "w", stdout); }else{ freopen("/Users/rakhmanabdirashov/Desktop/folder/Programming/Road2Master/Road2Master/input.txt", "r", stdin); } } int n, q, deq[MXN]; llong res[MXN]; llong sum, ans, roads; vector<pair<int, pair<int, int> > > g[MXN]; bool used[MXN]; void dfs(int v, int p){ for(int i = 0; i < g[v].size(); i++){ int to = g[v][i].F, cost = g[v][i].S.F; if(to == p) { roads += cost; continue; } dfs(to, v); } } void dfs2(int v, int p){ int cost = 0; for(int i = 0; i < g[v].size(); i++){ int to = g[v][i].F; if(to == p){ cost = g[v][i].S.F; continue; } } roads -= cost; ans = max(ans, roads); for(int i = 0; i < g[v].size(); i++){ int to = g[v][i].F; if(to == p){ continue; } roads += g[v][i].S.F; dfs2(to, v); roads -= g[v][i].S.F; } roads += cost; } int main () { ios; //istxt(0); cin >> n; for(int i = 1; i < n; i++){ int u, v, a, b; cin >> u >> v >> a >> b; g[u].pb({v, {a, b}}); g[v].pb({u, {b, a}}); deq[v] ++; deq[u]++; sum += a + b; } set<pair<llong, llong> > st; for(int i = 1; i <= n; i++){ if(deq[i] == 1) st.insert({g[i][0].S.S, i}); } while(st.size() > 2){ int v = st.begin() -> S; llong cost = st.begin() -> F; used[v] = 1; st.erase(st.begin()); int batya = -1; for(int i = 0; i < g[v].size(); i++){ if(used[g[v][i].F] == 0){ batya = g[v][i].F; break; } } deq[batya]--; if(deq[batya] == 1){ for(auto it : g[batya]){ if(used[it.F] == false){ st.insert({cost + it.S.S, it.F}); break; } } continue; } res[st.size()] = res[st.size() + 1] + cost; } dfs(1, 0); ans = roads; dfs2(1, 0); res[1] = sum - ans; cin >> q; while(q--){ int x; cin >> x; cout << res[x] << nl; } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

designated_cities.cpp: In function 'void dfs(int, int)':
designated_cities.cpp:69:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < g[v].size(); i++){
                    ~~^~~~~~~~~~~~~
designated_cities.cpp: In function 'void dfs2(int, int)':
designated_cities.cpp:81:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < g[v].size(); i++){
                    ~~^~~~~~~~~~~~~
designated_cities.cpp:90:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < g[v].size(); i++){
                    ~~^~~~~~~~~~~~~
designated_cities.cpp: In function 'int main()':
designated_cities.cpp:128:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < g[v].size(); i++){
                        ~~^~~~~~~~~~~~~
designated_cities.cpp: In function 'void istxt(bool)':
designated_cities.cpp:55:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen("balancing.in", "r", stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
designated_cities.cpp:58:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen("/Users/rakhmanabdirashov/Desktop/folder/Programming/Road2Master/Road2Master/input.txt", "r", stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...