Submission #1181677

#TimeUsernameProblemLanguageResultExecution timeMemory
1181677stdfloatFriend (IOI14_friend)C++20
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> #include "friend.h" #include "grader.cpp" using namespace std; vector<bool> vis; vector<vector<int>> E, dp; void dfs(int x) { vis[x] = true; for (auto i : E[x]) { if (vis[i]) continue; dfs(i); dp[x][0] += max(dp[i][1], dp[i][0]); dp[x][1] += dp[i][0]; } } int findSample(int n, int cnfd[], int hst[], int prt[]) { E.assign(n, {}); vector<int> cnt(3); for (int i = 1; i < n; i++) { cnt[prt[i]]++; if (prt[i]) { for (auto j : E[hst[i]]) { E[j].push_back(i); E[i].push_back(j); } } if (prt[i] != 1) { E[hst[i]].push_back(i); E[i].push_back(hst[i]); } } if (!cnt[2]) { vector<int> v(n); for (int i = 0; i < n; i++) { vis.assign(n, false); dp.assign(n, vector<int>(2)); for (int i = 0; i < n; i++) dp[i][1] = cnfd[i]; dfs(i); v[i] = max(dp[i][0], dp[i][1]); } int sm = 0; vis.assign(n, false); for (int i = 0; i < n; i++) { if (vis[i]) continue; int mx = v[i]; queue<int> q; q.push(i); vis[i] = true; while (!q.empty()) { int x = q.front(); q.pop(); for (auto j : E[x]) { if (!vis[j]) { vis[j] = true; mx = max(mx, v[j]); q.push(j); } } } sm += mx; } return sm; } else if (cnt[0] == n - 1) { vis.assign(n, false); dp.assign(n, vector<int>(2)); for (int i = 0; i < n; i++) dp[i][1] = cnfd[i]; dfs(0); return max(dp[0][0], dp[0][1]); } else if (cnt[1] == n - 1) { int sm = 0; for (int i = 0; i < n; i++) sm += cnfd[i]; return sm; } else if (cnt[2] == n - 1) { int sm = 0; vector<bool> vis(n); for (int i = 0; i < n; i++) { if (vis[i]) continue; int mx = cnfd[i]; for (auto j : E[i]) { vis[j] = true; mx = max(mx, cnfd[j]); } sm += mx; } return sm; } assert(false); }

Compilation message (stderr)

/usr/bin/ld: /tmp/ccRyBixn.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc1PXC9K.o:friend.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccRyBixn.o:(.bss+0xc3540): multiple definition of `confidence'; /tmp/cc1PXC9K.o:(.bss+0xc35c0): first defined here
/usr/bin/ld: /tmp/ccRyBixn.o:(.bss+0x0): multiple definition of `protocol'; /tmp/cc1PXC9K.o:(.bss+0x80): first defined here
/usr/bin/ld: /tmp/ccRyBixn.o:(.bss+0x61aa0): multiple definition of `host'; /tmp/cc1PXC9K.o:(.bss+0x61b20): first defined here
collect2: error: ld returned 1 exit status