Submission #1159254

#	Time	Username	Problem	Language	Result	Execution time	Memory
1159254		gazizmadi11	The Potion of Great Power (CEOI20_potion)	C++20	Compilation error	0 ms	0 KiB

potion

//gm  --- akezhon
#include <bits/stdc++.h>
// #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define pb push_back
#define pf push_front
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NE r < tl || tr < l
#define double long double
// #define int long long 
using namespace std;

const int N=2e5+7;
// const int mod=998244353;
// const int inf=2e12;

int n, d, m;
vector<int>h, a, b;
set<int>st[N];
vector<int>vec[N];

void init(int N, int D, vector<int>H){
    n=N;d=D;h=H;
}
void curseChanges(int M, vector<int>A, vector<int>B){
    m=M;a=A;b=B;
}
bool did_go;
void go(){
    if(did_go)return;
    did_go=1;
    for(int i=0; i < m; i++){
        if(st[a[i]].find(b[i]) != st[a[i]].end()){
            st[a[i]].erase(b[i]);
            st[b[i]].erase(a[i]);
        }
        else{
            st[a[i]].insert(b[i]);
            st[b[i]].insert(a[i]);
        }
    }
    for(int i=0; i < n; i++){
        for(int j : st[i])vec[i].pb(h[j]);
        sort(all(vec[i]));
    }
}
int question(int x, int y, int v){
    go();
    int cur=0, mn=1e9;
    for(int i : vec[x]){
        while(vec[y][cur] < i && cur < vec[y].size()-1)cur++;
        mn=min(mn, abs(i-vec[y][cur]));
        if(cur)mn=min(mn, abs(i-vec[y][cur-1]));
    }
    return mn;
}
// void AlemAmenov(){

// }
// signed main(){

    // ios_base::sync_with_stdio(0);
    // cin.tie(0);
    // int RealName=1;
    // cin >> RealName;

    // freopen("newbarn.in", "r", stdin);
    // freopen("newbarn.out", "w", stdout);
//     while(RealName--){
//         AlemAmenov();
//     }
    
// return 0;
// }

Compilation message (stderr)

/usr/bin/ld: /tmp/ccftwwvd.o: in function `main':
grader.cpp:(.text.startup+0xe4): undefined reference to `init(int, int, int*)'
/usr/bin/ld: grader.cpp:(.text.startup+0x16f): undefined reference to `curseChanges(int, int*, int*)'
collect2: error: ld returned 1 exit status