제출 #1118714

#제출 시각아이디문제언어결과실행 시간메모리
1118714Zero_OP밀림 점프 (APIO21_jumps)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; const int MAX = 2e3 + 5; const int inf = 1e9; int N, H[MAX]; vector<int> adj[MAX]; int rmq[11][11][MAX][MAX]; vector<int> bfs(int s){ vector<int> d(N, inf); queue<int> q; q.push(s); d[s] = 0; while(!q.empty()){ int u = q.front(); q.pop(); for(auto v : adj[u]){ if(d[v] == inf){ d[v] = d[u] + 1; q.push(v); } } } return d; } void init(int _N, int _H[]){ N = _N; copy(_H, _H + N, H); stack<int> st; for(int i = 0; i < N; ++i){ while(!st.empty() && H[st.top()] <= H[i]) st.pop(); if(!st.empty()) adj[i].emplace_back(st.top()); st.push(i); } stack<int>().swap(st); for(int i = N - 1; i >= 0; --i){ while(!st.empty() && H[st.top()] <= H[i]) st.pop(); if(!st.empty()) adj[i].emplace_back(st.top()); st.push(i); } for(int i = 0; i < N; ++i){ vector<int> d = bfs(i); for(int j = 0; j < N; ++j){ rmq[0][0][i][j] = d[j]; } } for(int u = 0; (1 << u) <= N; ++u){ for(int i = 0; i + (1 << u) <= N; ++i){ for(int v = 0; (1 << v) <= N; ++v){ for(int j = 0; j + (1 << v) <= N; ++j){ if(u == 0){ if(v > 0){ rmq[u][v][i][j] = min(rmq[u][v - 1][i][j], rmq[u][v - 1][i][j + (1 << (v - 1))]); } } else{ rmq[u][v][i][j] = min(rmq[u - 1][v][i][j], rmq[u - 1][v][i + (1 << (u - 1))][j]); } } } } } } int minimum_jumps(int a, int b, int c, int d){ int u = 31 - __builtin_clz(b - a + 1); int v = 31 - __builtin_clz(d - c + 1); int cur = min({rmq[u][v][a][c], rmq[u][v][a][d - (1 << v) + 1], rmq[u][v][b - (1 << u) + 1][c], rmq[u][v][b - (1 << u) + 1][d - (1 << v) + 1]}); return (cur == inf ? -1 : cur); } #ifdef LOCAL int main(){ ios_base::sync_with_stdio(0); cin.tie(0); freopen("task.inp", "r", stdin); freopen("task.out", "w", stdout); int N, Q; cin >> N >> Q; int H[N]; for(int i = 0; i < N; ++i){ cin >> H[i]; } init(N, H); for(int i = 0; i < Q; ++i){ int a, b, c, d; cin >> a >> b >> c >> d; cout << minimum_jumps(a, b, c, d) << '\n'; } return 0; } #endif //LOCAL

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/cc3CBWPN.o: in function `main':
stub.cpp:(.text.startup+0x177): undefined reference to `init(int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status