Submission #1034320

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034320		Antekb	Island Hopping (JOI24_island)	C++17	100 / 100	6 ms	600 KiB

island

#include "bits/stdc++.h"	/** keep-include */
using namespace std;

#define rep(i, b, e) for(int i = (b); i <= (e); i++)
#define per(i, b, e) for(int i = (e); i >= (b); i--)
#define FOR(i, b, e) rep(i, b, (e) - 1)
#define SZ(x) int(x.size())
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair
#define st first
#define nd second
using ll = long long;
using vi = vector<int>;
using pii = pair<int, int>;

auto &operator<<(auto &o, pair<auto, auto> p) {
	return o << "(" << p.st << ", " << p.nd << ")"; }
auto operator<<(auto &o, auto x)->decltype(end(x), o) {
	o << "{"; int i=0; for(auto e: x) o << ", " + 2*!i++ << e;
	return o << "}"; }
#ifdef LOCAL
#define deb(x...) cerr << "[" #x "]: ", [](auto...$) { \
	((cerr << $ << "; "),...) << endl; }(x)
#else
#define deb(...)
#endif
#include "island.h"

const int N=305;
int r[N];
int find(int v){
    if(r[v]==v)return v;
    return find(r[v]);
}
void Union(int a, int b){
    a=find(a);
    b=find(b);
    r[a]=b;
}

map<pair<int, int>, int > M;
int query2(int v, int d){
    if(M.find(mp(v, d))!=M.end()){
        return M[mp(v, d)];
    }
    int ans=query(v, d);
    M[mp(v, d)]=ans;
    return ans;
}

void solve(int n, int L) {
    vi kol;
    vi znamy={1};
    for(int i=1; i<n; i++){
        kol.pb(query2(1, i));
    }
    for(int v:kol){
        if(find(all(znamy), v)!=znamy.end())continue;
        for(int i=1; i<n; i++){
            int u=query(v, i);
            if(find(all(znamy), u)!=znamy.end()){
                znamy.pb(v);
                answer(u, v);
                break;
            }
            else{
                znamy.pb(u);
                answer(u, v);
            }
        }
    }
    /*int variable_example = query(1, 1);
    for (int i = 2; i <= n; i++) {
        answer(1, i);
    }*/
}

Compilation message (stderr)

island.cpp:17:18: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   17 | auto &operator<<(auto &o, pair<auto, auto> p) {
      |                  ^~~~
island.cpp:17:32: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   17 | auto &operator<<(auto &o, pair<auto, auto> p) {
      |                                ^~~~
island.cpp:17:38: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   17 | auto &operator<<(auto &o, pair<auto, auto> p) {
      |                                      ^~~~
island.cpp:19:17: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | auto operator<<(auto &o, auto x)->decltype(end(x), o) {
      |                 ^~~~
island.cpp:19:26: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | auto operator<<(auto &o, auto x)->decltype(end(x), o) {
      |                          ^~~~

• Subtask 1: 2 / 2
• Subtask 2: 4 / 4
• Subtask 3: 7 / 7
• Subtask 4: 9 / 9
• Subtask 5: 13 / 13
• Subtask 6: 15 / 15
• Subtask 7: 22 / 22
• Subtask 8: 28 / 28