Submission #1321993

#	Time	Username	Problem	Language	Result	Execution time	Memory
1321993		adaawf	Coins (IOI17_coins)	C++20	100 / 100	10 ms	760 KiB

coins

#include <bits/stdc++.h>
using namespace std;
vector<int> coin_flips(vector<int> a, int c) {
    int x = 0, y = 0;
    for (int i = 0; i < a.size(); i++) {
        if (a[i] == 0) continue;
        int h = i / 8, k = i % 8;
        x ^= h;
        y ^= k;
    }
    x ^= (c / 8);
    y ^= (c % 8);
    vector<int> v;
    v.push_back(x * 8 + y);
    return v;
}
int find_coin(vector<int> a) {
    int x = 0, y = 0;
    for (int i = 0; i < a.size(); i++) {
        if (a[i] == 0) continue;
        int h = i / 8, k = i % 8;
        x ^= h;
        y ^= k;
    }
    return x * 8 + y;
}

Compilation message (stderr)

grader.cpp: In function 'void shuffle(std::vector<int>&)':
grader.cpp:88:23: warning: 'void std::random_shuffle(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<int*, vector<int> >]' is deprecated: use 'std::shuffle' instead [-Wdeprecated-declarations]
   88 |         random_shuffle(v.begin(), v.end());
      |         ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61,
                 from grader.cpp:5:
/usr/include/c++/13/bits/stl_algo.h:4581:5: note: declared here
 4581 |     random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last)
      |     ^~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 15 / 15
• Subtask 5: 50 / 50