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Chef and Groups - GROUPS.cpp
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Chef and Groups - GROUPS.cpp
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// https://www.codechef.com/MARCH21B/problems/GROUPS
#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define ll long long
#define pll pair<long, long>
#define vll vector<long long>
#define inf 1e18
#define range(a,b) substr(a,b-a+1)
#define FIO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
using namespace std;
int main()
{
FIO;
#ifndef ONLINE_JUDGE
//remove this piece of code when this has to be submitted in kickstart
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
//freopen is used to associate a file with stdin or stdout stream in C++
#endif
ll t;
cin >> t;
while (t--) {
string s;
cin >> s;
int ans = 0;
int i = 0, k = s.size() - 1;
while (i < s.size() && s[i] == '0')
i++;
while (i >= 0 && s[k] == '0')
k--;
if (i == s.size())
cout << 0 << "\n";
else {
for (int j = i; j <= k; j++) {
if (s[j] == '0' && j != 0 && s[j - 1] != '0')
ans++;
}
cout << ans + 1 << "\n";
}
}
return 0;
}