Submission #257417

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
257417	2020-08-04T08:56:08 Z	islingr	Amusement Park (JOI17_amusement_park)	C++17	Compilation error	0 ms	0 KB

Joi

#include "Ioi.h"
#include <bits/stdc++.h>
using namespace std;

#define rep(i, a, b) for (auto i = (a); i < (b); ++i)
#define all(x) begin(x), end(x)

using ll = long long;

namespace {
const int N = 1 << 14, B = 60;
int nxt[N];
int head(int u) { return nxt[u] != u ? nxt[u] = head(nxt[u]) : u; }
bool unite(int u, int v) {
  u = head(u); v = head(v);
  if (u == v) return 0;
  nxt[u] = v; return 1;
}

vector<int> g[N];
int p[N], in[N], timer = 0;
void init(int u) {
  in[u] = timer;
  if (++timer == B) timer = 0;
  for (int v : g[u]) {
    g[v].erase(find(all(g[v]), u));
    p[v] = u;
    init(v);
  }
}

ll U = (1ll << B) - 1, cur = 0, x = 0;
bool dfs(int u, ll z) {
  cur |= 1ll << in[u];
  x |= z << in[u];
  if (cur == U) return true;
  for (int v : g[u]) {
    if (cur & 1ll << in[v]) continue;
    if (dfs(v, Move(v))) return true;
    Move(u);
  }
  return false;
}
}

ll Ioi(int n, int m, int a[], int b[], int P, int V, int T) {
  rep(u, 0, n) nxt[u] = u;
  rep(e, 0, m) {
    if (unite(a[e], b[e])) {
      g[a[e]].push_back(b[e]);
      g[b[e]].push_back(a[e]);
    }
  }
  init(0); while (!dfs(P, V)) V = Move(p[P]), P = p[P];
  return x;
}

Ioi

Compilation message

Joi.cpp: In function 'bool {anonymous}::dfs(int, ll)':
Joi.cpp:39:16: error: 'Move' was not declared in this scope
     if (dfs(v, Move(v))) return true;
                ^~~~
Joi.cpp:40:5: error: 'Move' was not declared in this scope
     Move(u);
     ^~~~
Joi.cpp: In function 'll Ioi(int, int, int*, int*, int, int, int)':
Joi.cpp:54:35: error: 'Move' was not declared in this scope
   init(0); while (!dfs(P, V)) V = Move(p[P]), P = p[P];
                                   ^~~~

/tmp/ccDZsMi0.o: In function `main':
grader_ioi.cpp:(.text.startup+0x36a): undefined reference to `Ioi(int, int, int*, int*, int, int, int)'
collect2: error: ld returned 1 exit status