Submission #383074

#TimeUsernameProblemLanguageResultExecution timeMemory
383074DarkVoidTraffic (IOI10_traffic)C++17
Compilation error
0 ms0 KiB
//#pragma GCC optimize("unroll-loops, O3") //#pragma GCC target("avx") #include <bits/stdc++.h> using namespace std; int n, a[1000000], cnt[1000000], mx[1000000]; vector<int> adj[1000000]; void dfs(int vtx, int pre){ mx[vtx] = 0, cnt[vtx] = a[vtx]; for(int i : adj[vtx]) if(i != pre){ dfs(i, vtx); cnt[vtx] += cnt[i]; mx[vtx] = max(mx[vtx], cnt[i]); } } int main(){ ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n; for(int i = 0; i < n; i++) cin >> a[i]; for(int i = 1; i < n; i++){ int u, v; cin >> u >> v; adj[u].push_back(v); adj[v].push_back(u); } dfs(0, -1); pair<int, int> ans(INT_MAX, -1); for(int i = 0; i < n; i++) ans = min(ans, make_pair(max(cnt[0] - cnt[i], mx[i]), i)); cout << ans.second << '\n'; return 0; }

Compilation message (stderr)

/tmp/cce6FV2X.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccIEDHaU.o:traffic.cpp:(.text.startup+0x0): first defined here
/tmp/cce6FV2X.o: In function `main':
grader.cpp:(.text.startup+0xd9): undefined reference to `LocateCentre(int, int*, int*, int*)'
collect2: error: ld returned 1 exit status