Submission #929059

#	Time	Username	Problem	Language	Result	Execution time	Memory
929059		Foolestboy	Cave (IOI13_cave)	C++14	100 / 100	210 ms	856 KiB

cave

#ifndef GNORT
#include "cave.h"
#endif // GNORT
#include <bits/stdc++.h>

#define SQR(x)    (1LL * ((x) * (x)))
#define MASK(i)   (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
#define fi        first
#define se        second
#define pb        push_back
#define all(x)    x.begin(), x.end()
#define rall(x)   x.rbegin(), x.rend()
#define sz(s)     (int)s.size()
#define prev      __prev
#define next      __next
#define left      __left
#define right     __right

#define mp make_pair
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vll vector<ll>

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef unsigned int ui;

using namespace std;

const int mod = 1e9 + 7;
const int INF = 1e9 + 7;
const ll INFLL = (ll)2e18 + 7LL;
const ld PI = acos(-1);

const int dx[] = {1, -1, 0, 0, -1, 1, 1, -1};
const int dy[] = {0, 0, 1, -1, -1, -1, 1, 1};

template<class BUI, class TRONG>
    bool minimize(BUI &x, const TRONG y){
        if(x > y){
            x = y;
            return true;
        } else return false;
    }
template<class BUI, class TRONG>
    bool maximize(BUI &x, const TRONG y){
        if(x < y){
            x = y;
            return true;
        } else return false;
    }

/* Author : Bui Nguyen Duc Trong, Luong Van Chanh High School for the gifted*/
/* Template is copied by Trong */

                           /** Losing in Provincial Contests **/
                                    /** TRYING HARDER**/
                                   /**      ORZ     **/

/* -----------------[ MAIN CODE GOES HERE ]----------------- */

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

//#ifdef GNORT

//const int QUERY_LIMIT = 70000;
//
//struct Judger {
//    int n;
//    vector<int> perm, pos;
//
//    int queryCount, answerCount;
//
//    Judger() {
//        queryCount = 0;
//        n = 0;
//    }
//
//    void loadData(void) {
//        cin >> n;
//        perm.assign(n, 0);
//        pos.assign(n, 0);
//        for (int i = 0; i < n; i++) cin >> perm[i];
//        for (int i = 0; i < n; i++) cin >> pos[i];
//        queryCount = 0;
//        answerCount = 0;
//    }
//
//    int tryCombination(int s[]) {
//        printf("Try #%d:", queryCount + 1);
//        for (int i = 0; i < n; i++) printf(" %d", s[i]);
//        printf("\n");
//
//        assert(++queryCount < QUERY_LIMIT);
//        assert(answerCount == 0);
//        for (int i = 0; i < n; i++) assert(s[i] == 0 || s[i] == 1);
//
//        /// tinh ket qua
//
//        int res = 0;
//
//        printf("Returns: %d\n", res);
//        return res;
//    }
//
//    void answer(int s[], int d[]) {
//        assert(answerCount == 0);
//        for (int i = 0; i < n; i++) if (s[i] != perm[i]) {
//            printf("PERMUTATION WRONG ANSWER!\n");
//
//            printf("Expected:");
//            for (int j = 0; j < n; j++) printf(" %d", perm[j]);
//            printf("\n");
//
//            printf("Received:");
//            for (int j = 0; j < n; j++) printf(" %d", s[j]);
//            printf("\n");
//
//            exit(EXIT_FAILURE);
//        }
//        for (int i = 0; i < n; i++) assert(d[i] == pos[i]);
//        printf("CORRECT after %d queries\n", queryCount);
//    }
//} judger;
//
//int tryCombination(int s[]) {
//    return judger.tryCombination(s);
//}
//void answer(int s[], int d[]) {
//    return judger.answer(s, d);
//}
//
//#endif // GNORT

#ifdef GNORT

struct Jury{
    int n;
    vector<int> state, door;

    Jury() : n(0) {}

    void init(){
        cin >> n;
        state.resize(n);
        door.resize(n);
        for(int i = 0; i < n; i++) cin >> state[i];
        for(int i = 0; i < n; i++) cin >> door[i];
    }

    int tryCombination(int s[]){
        int ans = -1;
        for(int i = 0; i < n; i++) if(state[i] != s[i]){
            if(ans == -1) ans = door[i];
            else minimize(ans, door[i]);
        }
        cout << "Try:"; for(int i = 0; i < n; i++) cout << ' ' << s[i]; cout << '\n';
        cout << "res: " << ans << '\n';
        return ans;
    }

    void answer(int s[], int d[]){
        bool wa = 0;
        for(int i = 0; i < n; i++) wa |= (s[i] != state[i] || d[i] != door[i]);
        cout << "Jury state:";
        for(int x : state) cout << ' ' << x; cout << '\n';
        cout << "Jury door:";
        for(int x : door) cout << ' ' << x; cout << '\n';
        cout << "Trong state:";
        for(int i = 0; i < n; i++) cout << ' ' << s[i]; cout << '\n';
        cout << "Trong door:";
        for(int i = 0; i < n; i++) cout << ' ' << d[i]; cout << '\n';
        cout << (wa ? "WA" : "AC") << '\n';
    }

} jury;

int tryCombination(int s[]){
    return jury.tryCombination(s);
}

void answer(int s[], int d[]){
    jury.answer(s, d);
}

#endif // GNORT

bool quaduoc(int x, int y){
    return y == -1 || x < y;
}

// dau tien tim 0 || 1

void exploreCave(int n){
    vector<int> con(n), used(n, 0);
    for(int i = 0; i < n; i++) con[i] = i;
    int thu[n];
    for(int i = 0; i < n; i++) thu[i] = 0;
    int ans1[n], ans2[n];
    for(int i = 0; i < n; i++){
        for(int j : con) thu[j] = 0;
        int c = quaduoc(i, tryCombination(thu)) ? 0 : 1;
        int lo = 0, hi = sz(con) - 1, pos = -1;
        while(lo <= hi){
            int mid = (lo + hi) >> 1;
            for(int j = 0; j <= mid; j++) thu[con[j]] = c;
            for(int j = mid + 1; j < sz(con); j++) thu[con[j]] = c ^ 1;
            if(quaduoc(i, tryCombination(thu))){
                hi = mid - 1;
                pos = mid;
            } else lo = mid + 1;
        }
        thu[con[pos]] = c;
        ans1[con[pos]] = c;
        ans2[con[pos]] = i;
        vector<int> tmp;
        for(int j = 0; j < pos; j++) tmp.push_back(con[j]);
        for(int j = pos + 1; j < sz(con); j++) tmp.push_back(con[j]);
        con = tmp;
    }
    answer(ans1, ans2);
}
/*
4
1 1 1 0
3 1 0 2

door: 0 1 2 3
. 1 0 .
*/

#ifdef GNORT

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);

    const bool multitest = 0;
    int tt = 1; if(multitest) cin >> tt;

    while( tt-- ){

        jury.init();
        exploreCave(jury.n);

    }

    return 0;
}
#endif

• Subtask 1: 12 / 12
• Subtask 2: 13 / 13
• Subtask 3: 21 / 21
• Subtask 4: 30 / 30
• Subtask 5: 24 / 24