Submission #4559585

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<ll>;
using vvi= vector<vi>;
using vs = vector<string>;
#define ci(n,a)   ll a[n]; rep(i,(n)) cin>>a[i];
#define rep(i,n)  for(ll i = 0; i < (n); ++i)
#define red(i,n)  for(ll i = (n)-1; i >= 0; --i)
#define all(a)    begin(a),end(a)
#define pb(a)     push_back(a)
#define mp(a,b)   make_pair(a,b)
#define yn(a)     cout << ( (a)?"Yes\n":"No\n" )
inline ll gcd(ll a,ll b) { return b?gcd(b,a%b):a; }
ll INF = 1e9+9, LINF = 1e18;


int main(int argc,char* argv[]) 
{
    ll n,ans=0;
    cin>>n;
    char a[n][9];
    bool o[9]={0};
    rep(i,n)rep(j,9){
        cin>>a[i][j];
        if(a[i][j]=='x') { ans++; if(o[j]) o[j]=0;}
        if(a[i][j]=='o') { if(!o[j]) ans++,o[j]=1;}
        if(a[i][j]=='.') { if(o[j]) o[j]=0; }
    }
    cout<<ans<<endl;
    return 0;
}

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