1 files changed, 42 insertions, 0 deletions
diff --git a/19/day2/themepark.cpp b/19/day2/themepark.cpp
new file mode 100644
index 0000000..2582eb3
--- /dev/null
+++ b/19/day2/themepark.cpp
@@ -0,0 +1,42 @@
+#include <bits/stdc++.h>
+using namespace std;
+constexpr int MAXN = 100001;
+
+int c[MAXN];
+vector<int> G[MAXN];
+
+int cnt, scc_num, scc[MAXN], in[MAXN], low[MAXN];
+stack<int> s;
+bitset<MAXN> ins;
+
+void tarjan(int u) {
+	low[u] = in[u] = cnt++;
+	s.push(u);
+	ins[u] = 1;
+	for (int v : G[u]) {
+		if (in[v] == -1) tarjan(v), low[u] = min(low[u], low[v]);
+		else if (ins[v]) low[u] = min(low[u], in[v]);
+	}
+	if (low[u] == in[u]) {
+		++scc_num;
+		while (1) {
+			int x = s.top(); s.pop();
+			scc[x] = scc_num, ins[x] = 0;
+			if (x == u) break;
+		}
+	}
+}
+
+int main() {
+	int N, M, K; cin >> N >> M >> K;
+	while (M--) {
+		int a, b; cin >> a >> b;
+		G[a].push_back(b);
+	}
+
+	memset(scc, -1, sizeof scc), memset(in, -1, sizeof in);
+	for (int u = 1; u <= N; ++u) if (scc[u] == -1) tarjan(u);
+
+	if (scc_num < K) cout << "impossible\n";
+	else for (int u = 1; u <= N; ++u) cout << min(scc[u], K) << '\n';	
+}
+\ No newline at end of file