Submission #1212054

#	Time	Username	Problem	Language	Result	Execution time	Memory
1212054		doublepun	Coins (IOI17_coins)	C++20	Compilation error	0 ms	0 KiB

coins

#include <bits/stdc++.h>
#define endl "\n"
using namespace std;
string contoBin(int n)
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	string ans = "";
	for (int r = 0;r < 6;r++)
	{
		stringstream ss;
		string pre;
		ss << (n%2);
		ss >> pre;
		ans+=pre;
		n = floor(n/2);
	}
	reverse(ans.begin(),ans.end());
	return ans;
}
int[] coin_flips(int[] b, int c)
{
	string code = contoBin(c);
	for (int i = 0;i < 6;i++)
	{
		stringstream ss2;
		int temp;
		ss2 << code[i];
		ss2 >> temp;
		if (b[i] != temp)
		{
			b[i] = temp;
		}
	}
	return b;
}
int find_coin(int[] b)
{
	return ((b[0]*pow(2,5) + b[1]*pow(2,4) + b[2]*pow(2,3) + b[3]*pow(2,2) + b[4]*2 + b[5]));
}

int main()
{
	int T;
	cin >> T;
	while (T--)
	{
		int curse;
		cin >> curse;
		
		int broad[64];
		for (int i = 0;i < 64;i++)
		{
			int state;
			cin >> state;
			broad[i] = state;
		}
		cout << find_coin(coin_flips(broad,curse)) << endl;
	}
}

Compilation message (stderr)

coins.cpp:21:4: error: structured binding declaration cannot have type 'int'
   21 | int[] coin_flips(int[] b, int c)
      |    ^~
coins.cpp:21:4: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
coins.cpp:21:4: error: empty structured binding declaration
coins.cpp:21:7: error: expected initializer before 'coin_flips'
   21 | int[] coin_flips(int[] b, int c)
      |       ^~~~~~~~~~
coins.cpp:37:21: error: expected ',' or '...' before 'b'
   37 | int find_coin(int[] b)
      |                     ^
coins.cpp: In function 'int find_coin(int*)':
coins.cpp:39:18: error: 'b' was not declared in this scope
   39 |         return ((b[0]*pow(2,5) + b[1]*pow(2,4) + b[2]*pow(2,3) + b[3]*pow(2,2) + b[4]*2 + b[5]));
      |                  ^
coins.cpp: In function 'int main()':
coins.cpp:58:35: error: 'coin_flips' was not declared in this scope
   58 |                 cout << find_coin(coin_flips(broad,curse)) << endl;
      |                                   ^~~~~~~~~~