CODE EXAMPLE FOR CPP

Magical Doors codechef solution in c++

// solution<1> 
// Time 0.16 s
// memory 5.3 M
------------------------>>
#include<iostream>
#define ll long long
#include<vector>
#include<stack>
#include<string>
#include<algorithm>
using namespace std;

void solve()
{
	string ans;
	cin >> ans;
	ll count = 0;
	if (ans[0] == '0')
	{
		count++;
	}
	for (ll i = 1; i < ans.length(); i++)
	{
		if (ans[i] !=ans[i-1])
			count++;
	}
	cout << count << "
";
}

int main()
{

	int t;
	cin >> t;
	while (t--)
	{
		solve();
	}
	
	return 0;
}
-----------------------------------------------------------------------------------------
// solution<2> 
// Time 0.17 s
// memory 5.2 M
------------------------>>
#include<iostream>
#define ll long long
#include<vector>
#include<stack>
#include<string>
#include<algorithm>
using namespace std;

void solve()
{
	string ans;
	cin >> ans;
	ll count = 0;
	if (ans[0] == '0')
	{
		count++;
	}
	for (ll i = 0; i < ans.length()-1; i++)
	{
		if (ans[i] !=ans[i+1])
			count++;
	}
	cout << count << "
";
}

int main()
{

	int t;
	cin >> t;
	while (t--)
	{
		solve();
	}
	
	return 0;
}