Submission #1321218

#	Time	Username	Problem	Language	Result	Execution time	Memory
1321218		phungmanager0	Split the Attractions (IOI19_split)	C++20	Compilation error	0 ms	0 KiB

split

#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; i++)
#define FORD(i, b, a) for (int i = (b), _a = (a); i >= _a; i--)
#define REP(i, n) for (int i = 0, _n = (n); i < _n; i++)
#define FORE(i, v) for (__typeof((v).begin()) i = (v).begin(); i != (v).end(); i++)
#define ALL(v) (v).begin(), (v).end()
#define IS_INF(x)   (std::isinf(x))
#define IS_NAN(x)   (std::isnan(x))
#define fi   first
#define se   second
#define int long long
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
#define div   ___div
#define prev   ___prev
#define next   ___next
#define left   ___leftc
#define right   ___right
#define TIME  (1.0 * clock() / CLOCKS_PER_SEC)
#define __Im_sogood__ main()
#define __builtin_popcount __builtin_popcountll
using namespace std;
const int MAXN = 2e5 + 5;
const int INF = 1e18;
int n, a, b, c; vector<int> p, q;
// geometry
void read_fake_input() {
    cin >> n >> a >> b >> c; p.resize(n); q.resize(n);
    REP(i, n) cin >> p[i]; REP(i, n) cin >> q[i];
}
struct DisjointSet {
    vector<int> par, Sz;
    void init(int n) { par.resize(n + 5); Sz.resize(n + 5); 
REP(i, n) par[i] = i, Sz[i] = 1;}
    int get(int u) { return (par[u] == u ? u : par[u] = get(par[u])); }
    bool merge(int u, int v) {
        u = get(u); v = get(v); 
        if(u == v) return false;
        if(Sz[u] < Sz[v]) swap(u, v);
        par[v] = u; Sz[u] += Sz[v];
        return true;
    }
};
vector<int> find_split(int n, int a, int b, int c, vector<int> p, vector<int> q) {
        
}
void solve() {
    read_fake_input(); vector<int> res = find_split(n, a, b, c, p, q);
    REP(i, n) cout << res[i] << " ";
}
__Im_sogood__{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    solve();
    cerr << "Time elapsed: " << TIME << " s.\n";
    return 0;
}

Compilation message (stderr)

split.cpp: In function 'std::vector<long long int> find_split(long long int, long long int, long long int, long long int, std::vector<long long int>, std::vector<long long int>)':
split.cpp:46:1: warning: no return statement in function returning non-void [-Wreturn-type]
   46 | }
      | ^
split.cpp: At global scope:
split.cpp:20:23: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   20 | #define __Im_sogood__ main()
      |                       ^~~~
split.cpp:51:1: note: in expansion of macro '__Im_sogood__'
   51 | __Im_sogood__{
      | ^~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccBSudZ1.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccR29eQQ.o:split.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccBSudZ1.o: in function `main':
grader.cpp:(.text.startup+0x270): undefined reference to `find_split(int, int, int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status