85 lines
1.7 KiB
C++
85 lines
1.7 KiB
C++
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#include <bits/stdc++.h>
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using namespace std;
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#ifdef ONLINE_JUDGE
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#define dbg(...)
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#else
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#include "Assets/debug.h"
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#endif
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#define int long long
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#define ll long long
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#define endl '\n'
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#define all(x) x.begin(), x.end()
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#define sz(x) (int)(x).size()
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#define yes cout << "YES" << endl
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#define no cout << "NO" << endl
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#define rep(i,a,b) for(int i=a; i<b; ++i)
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#define rrep(i,a,b) for(int i=a; i>=b; --i)
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#define FAST (ios_base::sync_with_stdio(false), cin.tie(nullptr));
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ll pow(ll x,ll y,ll m=1e9+7){ll ans=1;x%=m;while(y){if(y&1)ans=(ans*x)%m;x=(x*x)%m;y>>=1;}return ans;}
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void solve()
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{
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int n;
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string s;
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cin>>n>>s;
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if(n<3)
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{
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cout<<stoi(s)<<endl;
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return;
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}
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if(s[0]=='0' || s[n-1]=='0')
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{
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cout<<0<<endl;
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return;
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}
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int mn=INT_MAX;
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if(n==3)
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{
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int a,b,x,y;
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x=s[0]-'0';
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y=s[2]-'0';
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a=stoi(s.substr(0,2));
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b=stoi(s.substr(1,2));
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mn = min(mn, x+b);
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mn = min(mn, x*b);
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mn = min(mn, y+a);
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mn = min(mn, y*a);
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cout<<mn<<endl;
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return;
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}
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for(int i=0; i<n-1; ++i)
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{
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if(s[i]=='0')
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{
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cout<<0<<endl;
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return;
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}
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int sum=0,ct=0;
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for(int j=0; j<i; ++j)
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{
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sum += s[j]-'0';
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if(s[j]=='1') ct++;
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}
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int num=stoi(s.substr(i,2));
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sum+=num;
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for(int k=i+2; k<n; ++k)
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{
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sum += s[k]-'0';
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if(s[k]=='1') ct++;
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}
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mn = min(mn,sum-ct);
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}
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cout<<mn<<endl;
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}
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signed main()
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{
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FAST;
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int TCS = 1;
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cin >> TCS;
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for (int TC = 1; TC <= TCS; ++TC)
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{
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// cout<<"Case "<<TC<<": ";
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solve();
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}
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}
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