Submission #659466

#TimeUsernameProblemLanguageResultExecution timeMemory
659466Sam_a17Uzastopni (COCI15_uzastopni)C++14
136 / 160
85 ms32948 KiB
#define _CRT_SECURE_NO_WARNINGS #include <bits/stdc++.h> //#include "temp.cpp" #include <cstdio> using namespace std; #ifndef ONLINE_JUDGE #define dbg(x) cerr << #x <<" "; print(x); cerr << endl; #else #define dbg(x) #endif #define sz(x) (int)x.size() #define len(x) (int)x.length() #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define clr(x) (x).clear() #define uniq(x) x.resize(unique(all(x)) - x.begin()); #define blt __builtin_popcount #define pb push_back #define popf pop_front #define popb pop_back void print(long long t) {cerr << t;} void print(int t) {cerr << t;} void print(string t) {cerr << t;} void print(char t) {cerr << t;} void print(double t) {cerr << t;} void print(long double t) {cerr << t;} void print(unsigned long long t) {cerr << t;} template <class T, class V> void print(pair <T, V> p); template <class T> void print(vector <T> v); template <class T> void print(set <T> v); template <class T, class V> void print(map <T, V> v); template <class T> void print(multiset <T> v); template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]";} template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";} template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";} template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";} template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";} template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";} template <class T> void print(deque <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";} #include <ext/pb_ds/assoc_container.hpp> using namespace __gnu_pbds; #define nl '\n' // for random generations mt19937 myrand(chrono::steady_clock::now().time_since_epoch().count()); // for grid problems int dx[8] = {-1,0,1,0,1,-1,1,-1}; int dy[8] = {0,1,0,-1,1,1,-1,-1}; // lowest / (1 << 17) >= 1e5 / (1 << 18) >= 2e5 / (1 << 21) >= 1e6 void fastIO() { ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); } // file in/out void setIO(string str = "") { fastIO(); if (str != "" && str != "input") { freopen((str + ".in").c_str(), "r", stdin); freopen((str + ".out").c_str(), "w", stdout); } if(str == "input") { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); } } // Indexed Set template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; const int N = 1e4 + 10, M = 1e2 + 2; bitset<M> bit[N][M]; vector<int> adj[N]; int n, v[N]; void dfs(int node) { bitset<M> bitik[M]; for(auto i: adj[node]) { dfs(i); for(int j = 1; j <= 100; j++) { bitik[j] |= bit[i][j]; bit[i][j].reset(); } } for(int i = 100; i >= 1; i--) { for(int j = i + 1; j <= 100; j++) { if(bitik[i][j - 1]) { bitik[i] |= bitik[j]; } } } // compare with node for(int i = 1; i <= v[node]; i++) { for(int j = v[node]; j <= 100; j++) { if((i == v[node] || bitik[i][v[node] - 1]) && (j == v[node] || bitik[v[node] + 1][j])) { bit[node][i][j] = 1; } } } } void solve_() { cin >> n; for(int i = 1; i <= n; i++) { cin >> v[i]; } for(int i = 1; i <= n - 1; i++) { int a, b; cin >> a >> b; adj[a].push_back(b); } dfs(1); long long answ = 0; for(int i = 1; i <= 100; i++) { answ += bit[1][i].count(); } cout << answ << "\n"; } int main() { setIO(); auto solve = [&](int test_case)-> void { for(int i = 1; i <= test_case; i++) { // cout << "Case #" << i << ": "; solve_(); } }; int test_cases = 1; // cin >> test_cases; solve(test_cases); return 0; }

Compilation message (stderr)

uzastopni.cpp: In function 'void setIO(std::string)':
uzastopni.cpp:67:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   67 |     freopen((str + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
uzastopni.cpp:68:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |     freopen((str + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
uzastopni.cpp:72:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
uzastopni.cpp:73:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
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