Submission #1215259

#	Time	Username	Problem	Language	Result	Execution time	Memory
1215259		salmon	Coins (IOI17_coins)	C++20	Compilation error	0 ms	0 KiB

coins

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

vector<int> coin_flips(vector<int> b, int c) {
    vector<int> flips(1);
    
    for(int i = 0; i < N; i++){
		if(b[i])  c = (c^i);
	}
	flips[0] = c;
    
    return flips;
}

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

Compilation message (stderr)

coins.cpp: In function 'std::vector<int> coin_flips(std::vector<int>, int)':
coins.cpp:8:24: error: 'N' was not declared in this scope
    8 |     for(int i = 0; i < N; i++){
      |                        ^
coins.cpp: In function 'int find_coin(std::vector<int>)':
coins.cpp:18:28: error: 'N' was not declared in this scope
   18 |         for(int i = 0; i < N; i++){
      |                            ^