Submission #311642

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
311642	2020-10-10T20:59:13 Z	saarang123	Cave (IOI13_cave)	C++14	Compilation error	0 ms	0 KB

cave

#include <bits/stdc++.h>
#include "cave.h"
using namespace std;
using ll = long long;
using ld = long double;

#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair

template<class T> bool remin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool remax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }

std::mt19937 rng((int) std::chrono::steady_clock::now().time_since_epoch().count());
/*
void answer(vector<int> s, vector<int> d) {
    cout << "Code: ";
    for(int c : s) cout << c << " "; cout << endl;
    cout << "Doors: ";
    for(int c : d) cout << c << " "; cout << endl;
    cout << "Exit" << endl;
}

int tryCombination(vector<int> s) {
    cout << "Query for doors: ";
    for(int c : s) cout << c << " "; cout << endl;
    int x; cin >> x;
    return x;
}
*/
int binsearch(vector<int> a, int k) {
    int mn = 0, mx = a.size() - 1;
    while(mn < mx) {
        int mid = (mn + mx) >> 1;
        for(int i = mn; i <= mid; i++)
            a[i] ^= 1;
        int x = tryCombination(a);
        for(int i = mn; i <= mid; i++)
            a[i] ^= 1;
        if(x != k)
            mx = mid;
        else
            mn = mid + 1;
    }
    return mn;
}

void exploreCave(int n) {
    vector<int> a(n, 0), d(n, -1);
    int x = tryCombination(a);
    while(x != -1) {
        int id = binsearch(a, x);
        d[id] = x;
        a[id] ^= 1;
        x = tryCombination(a);
    }
    vector<int> s = a;
    for(int i = 0; i < n; i++) {
        if(d[i] != -1) continue;
        s[i] ^= 1;
        d[i] = tryCombination(s);
        s[i] ^= 1;
    }
    answer(s, d);
}
/*
signed main() {
    std::ios::sync_with_stdio(0);
    std::cout.tie(0);
    std::cin.tie(0);
    int n, i, j;
    cin >> n;
    exploreCave(n);
    return 0;
}*/

Compilation message

cave.cpp: In function 'int binsearch(std::vector<int>, int)':
cave.cpp:37:32: error: cannot convert 'std::vector<int>' to 'int*'
   37 |         int x = tryCombination(a);
      |                                ^
      |                                |
      |                                std::vector<int>
In file included from cave.cpp:2:
cave.h:8:24: note:   initializing argument 1 of 'int tryCombination(int*)'
    8 | int tryCombination(int S[]);
      |                    ~~~~^~~
cave.cpp: In function 'void exploreCave(int)':
cave.cpp:50:28: error: cannot convert 'std::vector<int>' to 'int*'
   50 |     int x = tryCombination(a);
      |                            ^
      |                            |
      |                            std::vector<int>
In file included from cave.cpp:2:
cave.h:8:24: note:   initializing argument 1 of 'int tryCombination(int*)'
    8 | int tryCombination(int S[]);
      |                    ~~~~^~~
cave.cpp:55:28: error: cannot convert 'std::vector<int>' to 'int*'
   55 |         x = tryCombination(a);
      |                            ^
      |                            |
      |                            std::vector<int>
In file included from cave.cpp:2:
cave.h:8:24: note:   initializing argument 1 of 'int tryCombination(int*)'
    8 | int tryCombination(int S[]);
      |                    ~~~~^~~
cave.cpp:61:31: error: cannot convert 'std::vector<int>' to 'int*'
   61 |         d[i] = tryCombination(s);
      |                               ^
      |                               |
      |                               std::vector<int>
In file included from cave.cpp:2:
cave.h:8:24: note:   initializing argument 1 of 'int tryCombination(int*)'
    8 | int tryCombination(int S[]);
      |                    ~~~~^~~
cave.cpp:64:12: error: cannot convert 'std::vector<int>' to 'int*'
   64 |     answer(s, d);
      |            ^
      |            |
      |            std::vector<int>
In file included from cave.cpp:2:
cave.h:9:17: note:   initializing argument 1 of 'void answer(int*, int*)'
    9 | void answer(int S[], int D[]);
      |             ~~~~^~~