제출 #984896

#제출 시각아이디문제언어결과실행 시간메모리
984896javotaz사이버랜드 (APIO23_cyberland)C++17
컴파일 에러
0 ms0 KiB
// In the Name of Allah #include<bits/stdc++.h> using namespace std; #pragma GCC optimize("Ofast,unroll-loops,fast-math") //#pragma GCC target("sse,sse2,sse3,ssse3,sse4.1,sse4.2,avx,avx2,popcnt,tune=native") typedef long long ll; typedef pair<double, int> pd; #define F first #define S second #define pii pair<int, int> #define pb push_back #define pp pop_back #define all(x) x.begin(), x.end() const int N = 1e5 + 12, K = 76; vector<pii> g[N]; int n, m, k, h, a[N]; double ans; bool mrk[N][K], t[N]; void dfs(int u) { t[u] = true; for (auto i: g[u]) if (!t[i.F]) dfs(i.F); } void find_ans() { dfs(0); ans = -1; if (!t[h]) return; priority_queue<pd, vector<pd>, greater<pd>> q; q.push({0, 0}); for (int i = 1; i < n; i++) if (!a[i] && t[i]) q.push({0, i}); while (!q.empty()) { auto tmp = q.top(); q.pop(); int u = tmp.S % n, ck = tmp.S / n; double w = tmp.F; if (u == h) { if (ans == -1) ans = w; else ans = min(ans, w); mrk[u][ck] = true; } if (mrk[u][ck]) continue; mrk[u][ck] = true; for (auto i: g[u]) if (a[i.F] && !mrk[i.F][ck + (a[i.F] == 2)]) { if (a[i.F] == 1) q.push({w + i.S, i.F + ck * n}); else if (ck + 1 <= k) q.push({(w + i.S) / 2.0, i.F + (ck + 1) * n}); } } } double solve(int ns, int ms, int ks, int hs, vector<int> xs, vector<int> ys, vector<int> ws, vector<int> as) { n = ns, m = ms, k = min(ks, 75), h = hs; for (int i = 0; i < m; i++) g[xs[i]].pb({ys[i], ws[i]}), g[ys[i]].pb({xs[i], ws[i]}); for (int i = 0; i < n; i++) a[i] = as[i]; find_ans(); for (int i = 0; i < n; i++) { g[i].clear(); for (int j = 0; j <= k; ++j) mrk[i][j] = false; } return ans; } int main() { cout << solve(4, 4, 30, 3, {0, 0, 1, 2}, {1, 2, 3, 3}, {5, 4, 2, 4}, {1, 0, 2, 1}); }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/cc2HsEv5.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc6dIpR3.o:cyberland.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status