Submission #993878

#	Time	Username	Problem	Language	Result	Execution time	Memory
993878		TgX_2	Arranging Shoes (IOI19_shoes)	C++17	Compilation error	0 ms	0 KiB

shoes

/*-----------------------------
        Author : TgX.2
       11Ti - K28 - CHV
-----------------------------*/

#ifndef TGX
    #include "shoes.h"
#endif // !TGX


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

#define FOR(i,a,b) for(int i=(a), _b=(b);i<=_b;++i)
#define FORD(i,a,b) for(int i=(a), _b=(b);i>=_b;--i)
#define FORC(i,a,b,c) for(int i=(a), _b=(b), _c=(c);i<=_b;i+=_c)
#define FORSq(i,a,b) for(int i=(a), _b=(b);i*i<=_b;++i)
#define FORSt(i,s) for(int i=0, _s=(int)(s.size());i<_s;++i)

#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define ers erase
#define ins insert
#define rvs reverse

#define len(x) (int)((x).size())
#define all(x) (x).begin(), (x).end()
#define alln(x,n) (x)+1, (x)+1+(n)

#define _ <<" "<<
#define __ << "\n"
#define ___ << " "

#define int long long
#define intmax 1e9
#define intmin -1e9
#define llongmax 1e18
#define llongmin -1e18
#define memo(a, val) memset((a), (val), sizeof((a)))

template<typename T1, typename T2> bool mini(T1 &a, T2 b)
    {if(a>b) a=b; else return 0; return 1;}
template<typename T1, typename T2> bool maxi(T1 &a, T2 b)
    {if(a<b) a=b; else return 0; return 1;}


long long count_swaps(vector<int> &s) {
//    return 123;
    if (s[0] < 0 and s[1] > 0) return 1;
    else return 0;
}

#ifdef TGX

#define file "temp"
#define ______________TgX______________ main()
void fastio() {
    if (fopen(file".inp", "r")) {
        freopen(file".inp", "r", stdin);
        freopen(file".out", "w", stdout);
        freopen(file".debug", "w", stderr);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
}

vector<int> s;

void inp() {
    int n; cin >> n;
    FOR(i, 1, n) {
        int x; cin >> x;
        s.pb(x);
    }
}


______________TgX______________ {
    fastio();
    inp();
    cout << count_swaps(s);
}

#endif // TGX

Compilation message (stderr)

/usr/bin/ld: /tmp/cclgZbm2.o: in function `main':
grader.cpp:(.text.startup+0x2a8): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status