Submission #1140984

#	Time	Username	Problem	Language	Result	Execution time	Memory
1140984		codexistent	Coins (IOI17_coins)	C++20	Compilation error	0 ms	0 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define FOR(__i, __a, __b) for(ll __i = __a; __i <= __b; __i++)

vector<int> coin_flips(vector<int> b, int c) {
    ll r = 0;
    FOR(i, 1, 63){
        if(b[i]) r ^= i;
    }

    if(r != c) {
        FOR(i, 0, 63) if(r ^ i == c) b[i] = 1;
    }
    return flips;
}

int find_coin(vector<int> b) {
    ll r = 0;
    FOR(i, 1, 63){
        if(b[i]) r ^= i;
    }
    return r;
}

Compilation message (stderr)

coins.cpp: In function 'std::vector<int> coin_flips(std::vector<int>, int)':
coins.cpp:16:12: error: 'flips' was not declared in this scope
   16 |     return flips;
      |            ^~~~~