Submission #1296315

#	Time	Username	Problem	Language	Result	Execution time	Memory
1296315		rafamiune	Coins (IOI17_coins)	C++20	10 / 100	8 ms	768 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>

using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
    vector<int> aux(64), flips;
    bool ok = false;
    for(int i = 0; i < 64; i++) {
        aux[i] = (i == c ? 1 - b[i] : b[i]);
        if(aux[i] == 1) ok = true;
    }
    if(!ok) {
        for(int i = 0; i < 64; i++) {
            aux[i] = 1 - aux[i];
        }
    }
    for(int i = 0; i < 64; i++) if(aux[i] == 1) flips.push_back(i);

    return flips;
}

int find_coin(vector<int> b) {
    int cnt = 0;
    for(int i = 0; i < 64; i++) {
        if(b[i] == 1) cnt++;
    }

    if(cnt == 1) {
        for(int i = 0; i < 64; i++) {
            if(b[i] == 1) {
                return i;
            }
        }
    }

    else {
        for(int i = 0; i < 64; i++) {
            if(b[i] == 0) {
                return i;
            }
        }
    }

    return 0;
}

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: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 10 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50