Submission #1141371

#	Time	Username	Problem	Language	Result	Execution time	Memory
1141371		Francisco_Martin	Coins (IOI17_coins)	C++20	Compilation error	0 ms	0 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
using namespace std;

#define debug(v) cerr<<#v" = "<<(v)<<"\n"

using ll=long long;
using ull=unsigned long long;
using pll=pair<ll,ll>;
using vll=vector<ll>;
using vpll=vector<pll>;
using vvll=vector<vll>;
const ll INF=1e9+100;
const ll MOD=998244353;
const ll MAXN=2e5+100;

vector<int> coins_flips(vector<int> b, int c){
    for(int i=0; i<b.size(); i++) if(b[i]) c^=i;
    vector<int> ans={c};
    return ans;
}

int find_coin(vector<int> b){
    int c;
    for(int i=0; i<b.size(); i++) if(b[i]) c^=i;
    return c;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccfS13R5.o: in function `main':
grader.cpp:(.text.startup+0x3e2): undefined reference to `coin_flips(std::vector<int, std::allocator<int> >, int)'
collect2: error: ld returned 1 exit status