Submission #1269547

#	Time	Username	Problem	Language	Result	Execution time	Memory
1269547		SamAnd	Migrations (IOI25_migrations)	C++20	Compilation error	0 ms	0 KiB

migrations

#include "migrations.h"
#include <cassert>
#include <cstdio>

int main() {
  int N;
  assert(1 == scanf("%d", &N));

  std::vector<int> P(N, 0);
  for (int i = 1; i < N; ++i) {
    assert(1 == scanf("%d", &P[i]));
  }

  std::vector<int> S(N, 0);
  for (int i = 1; i < N; ++i) {
    S[i] = send_message(N, i, P[i]);
  }
  for (int i = 1; i < N; ++i) {
    printf("%d%c", S[i], " \n"[i + 1 == N]);
  }

  auto [U, V] = longest_path(S);
  printf("%d %d\n", U, V);
  fclose(stdout);

  return 0;
}

/*
41
0 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
*/

Compilation message (stderr)

/usr/bin/ld: /tmp/ccL6F4sW.o: in function `main':
stub.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccHYYVJd.o:migrations.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccHYYVJd.o: in function `main':
migrations.cpp:(.text.startup+0xf8): undefined reference to `send_message(int, int, int)'
/usr/bin/ld: migrations.cpp:(.text.startup+0x1d1): undefined reference to `longest_path(std::vector<int, std::allocator<int> >)'
/usr/bin/ld: /tmp/ccL6F4sW.o: in function `main':
stub.cpp:(.text.startup+0xa9): undefined reference to `send_message(int, int, int)'
/usr/bin/ld: stub.cpp:(.text.startup+0x230): undefined reference to `longest_path(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status