제출 #398454

#제출 시각아이디문제언어결과실행 시간메모리
398454ACmachine친구 (IOI14_friend)C++17
100 / 100
38 ms3536 KiB
#include "friend.h" #include <bits/stdc++.h> using namespace std; #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace __gnu_pbds; template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; template<typename T, typename U> using ordered_map = tree<T, U, less<T>, rb_tree_tag, tree_order_statistics_node_update>; typedef long long ll; typedef long double ld; typedef pair<int,int> pii; typedef pair<ll,ll> pll; typedef vector<int> vi; typedef vector<ll> vll; #define FOR(i,j,k,in) for(int i=(j); i < (k);i+=in) #define FORD(i,j,k,in) for(int i=(j); i >=(k);i-=in) #define REP(i,b) FOR(i,0,b,1) #define REPD(i,b) FORD(i,b,0,1) #define pb push_back #define mp make_pair #define ff first #define ss second #define all(x) begin(x), end(x) #define MANY_TESTS int tcase; cin >> tcase; while(tcase--) const double EPS = 1e-9; const int MOD = 1e9+7; const ll INFF = 1e18; const int INF = 1e9; const ld PI = acos((ld)-1); const vi dy = {1, 0, -1, 0, -1, 1, 1, -1}; const vi dx = {0, 1, 0, -1, -1, 1, -1, 1}; void DBG(){cout << "]" << endl;} template<typename T, typename ...U> void DBG(const T& head, const U... args){ cout << head << "; "; DBG(args...); } #define dbg(...) cout << "Line(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__); #define chk() cout << "Check at line(" << __LINE__ << ") hit." << endl; template<class T, unsigned int U> ostream& operator<<(ostream& out, const array<T, U> &v){out << "["; REP(i, U) out << v[i] << ", "; out << "]"; return out;} template <class T, class U> ostream& operator<<(ostream& out, const pair<T, U> &par) {out << "[" << par.first << ";" << par.second << "]"; return out;} template <class T> ostream& operator<<(ostream& out, const set<T> &cont) { out << "{"; for( const auto &x:cont) out << x << ", "; out << "}"; return out; } template <class T, class U> ostream& operator<<(ostream& out, const map<T, U> &cont) {out << "{"; for( const auto &x:cont) out << x << ", "; out << "}"; return out; } template<class T> ostream& operator<<(ostream& out, const vector<T> &v){ out << "["; REP(i, v.size()) out << v[i] << ", "; out << "]"; return out;} template<class T> istream& operator>>(istream& in, vector<T> &v){ for(auto &x : v) in >> x; return in; } // Find out best sample int findSample(int n,int confidence[],int host[],int protocol[]){ vector<int> p(n); vector<int> q(n, 0); REP(i, n) p[i] = confidence[i]; FORD(i, n - 1, 1, 1){ if(protocol[i] == 0){ p[host[i]] = p[host[i]] + q[i]; q[host[i]] = max(p[i] + q[host[i]], q[i] + q[host[i]]); } else if(protocol[i] == 1){ p[host[i]] = max({p[host[i]] + q[i], p[host[i]] + p[i], q[host[i]] + p[i]}); q[host[i]] = q[host[i]] + q[i]; } else if(protocol[i] == 2){ p[host[i]] = max(p[host[i]] + q[i], p[i] + q[host[i]]); q[host[i]] = q[i] + q[host[i]]; } } return max(p[0], q[0]); }
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