Submission #303169

#	Time	Username	Problem	Language	Result	Execution time	Memory
303169		VROOM_VARUN	Carnival Tickets (IOI20_tickets)	C++14	Compilation error	0 ms	0 KiB

tickets

/*
ID: varunra2
LANG: C++
TASK: tickets
*/

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

#ifdef DEBUG
#include "lib/debug.h"
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#define debug_arr(...) \
  cerr << "[" << #__VA_ARGS__ << "]:", debug_arr(__VA_ARGS__)
#pragma GCC diagnostic ignored "-Wsign-compare"
//#pragma GCC diagnostic ignored "-Wunused-parameter"
//#pragma GCC diagnostic ignored "-Wunused-variable"
#else
#define debug(...) 42
#endif

#define EPS 1e-9
#define IN(A, B, C) assert(B <= A && A <= C)
#define INF (int)1e9
#define MEM(a, b) memset(a, (b), sizeof(a))
#define MOD 1000000007
#define MP make_pair
#define PB push_back
#define all(cont) cont.begin(), cont.end()
#define rall(cont) cont.end(), cont.begin()
#define x first
#define y second

const double PI = acos(-1.0);
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef map<int, int> MPII;
typedef multiset<int> MSETI;
typedef set<int> SETI;
typedef set<string> SETS;
typedef vector<int> VI;
typedef vector<PII> VII;
typedef vector<VI> VVI;
typedef vector<string> VS;

#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define trav(a, x) for(auto& a : x)
#define sz(x) (int)(x).size()
typedef pair<int, int> pii;
typedef vector<int> vi;
#pragma GCC diagnostic ignored "-Wsign-compare"
// util functions

int n, m;


ll find_maximum(int k, VVI& x) {
  n = sz(x);
  m = sz(x[0]);
  VVI ret(n, VI(k));

  if(m == 1) {
    ret = x;
    sort(all(x));
    ll sm1, sm2;
    sm1 = 0;
    sm2 = 0;
    for(int i = 0; i < n/2; i++) {
      sm1 += x[i][0];
    }
    for(int i = n/2; i < n; i++) {
      sm2 += x[i][0];
    }
    allocate_tickets(ret);
    return sm2 - sm1;
  }

}

// int main() {
// #ifndef ONLINE_JUDGE
//   freopen("tickets.in", "r", stdin);
//   freopen("tickets.out", "w", stdout);
// #endif
//   cin.sync_with_stdio(0); cin.tie(0);

//   return 0;
// }

Compilation message (stderr)

tickets.cpp: In function 'll find_maximum(int, VVI&)':
tickets.cpp:62:19: warning: control reaches end of non-void function [-Wreturn-type]
   62 |   VVI ret(n, VI(k));
      |                   ^
/tmp/ccQe0X0E.o: In function `main':
grader.cpp:(.text.startup+0x3b2): undefined reference to `find_maximum(int, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)'
collect2: error: ld returned 1 exit status