Submission #1344079

#	Time	Username	Problem	Language	Result	Execution time	Memory
1344079		MunkhErdene	Cave (IOI13_cave)	C++17	Compilation error	0 ms	0 KiB

cave

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define _ << " " <<
#define yes cout<<"YES\n"
#define no cout<<"NO\n"
#define ull unsigned long long
#define lll __int128
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define BlueCrowner ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define FOR(i, a, b) for (ll i = (a); i < (b); i++)
#define FORD(i, a, b) for (ll i = (a); i >= (b); i--)

void exploreCave(int n) {
    int s[n], d[n], used[n];
    FOR(i, 0, n) {
        s[i] = d[i] = used[i] = 0;
    }
    FOR(i, 0, n) {
        ll cur = tryCombination(s);
        if(cur == i) {
            FOR(i, 0, n) if(!used[i]) s[i] ^= 1;
        }
        ll l = 0, r = n - 1;
        ll pos = 0;
        while(l <= r) {
            ll m = (l + r) / 2;
            int a[n];
            FOR(i, 0, n) a[i] = s[i];
            FOR(i, l, m + 1) {
                if(!used[i]) a[i] ^= 1;
            }
            ll cur = tryCombination(a);
            if(cur == i) {
                pos = m;
                r = m - 1;
            }
            else {
                l = m + 1;
            }
        }
        used[pos] = 1;
        d[pos] = i;
    }
    answer(s, d);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:24:18: error: 'tryCombination' was not declared in this scope
   24 |         ll cur = tryCombination(s);
      |                  ^~~~~~~~~~~~~~
cave.cpp:49:5: error: 'answer' was not declared in this scope
   49 |     answer(s, d);
      |     ^~~~~~