Submission #316068

#	Time	Username	Problem	Language	Result	Execution time	Memory
316068		MrDomino	The Big Prize (IOI17_prize)	C++14	Compilation error	0 ms	0 KiB

prize

#include <bits/stdc++.h>
#include "prize.h"

int find_best(int n) {
  /// subtask 1
  int l = 0, r = n - 1;
  while (l <= r) {
    int m = (l + r) / 2;
    vector<int> v = ask(m);
    if (v[0] == 0 && v[1] == 0) {
      return i;
    }
    if (v[0] == 1) {
      r = m - 1;
    } else {
      l = m + 1;
    }
  }
  assert(0);
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:9:5: error: 'vector' was not declared in this scope; did you mean 'std::vector'?
    9 |     vector<int> v = ask(m);
      |     ^~~~~~
      |     std::vector
In file included from /usr/include/c++/9/vector:67,
                 from /usr/include/c++/9/queue:61,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:86,
                 from prize.cpp:1:
/usr/include/c++/9/bits/stl_vector.h:386:11: note: 'std::vector' declared here
  386 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
prize.cpp:9:12: error: expected primary-expression before 'int'
    9 |     vector<int> v = ask(m);
      |            ^~~
prize.cpp:10:9: error: 'v' was not declared in this scope
   10 |     if (v[0] == 0 && v[1] == 0) {
      |         ^
prize.cpp:11:14: error: 'i' was not declared in this scope
   11 |       return i;
      |              ^
prize.cpp:13:9: error: 'v' was not declared in this scope
   13 |     if (v[0] == 1) {
      |         ^