oj.uz

Submission #883804

# Submission time Handle Problem Language Result Execution time Memory
883804 2023-12-06T05:43:34 Z vjudge1 Emacs (COCI20_emacs) C++17
50 / 50
 1 ms 604 KB 
#ifndef Local
    #pragma GCC optimize("O3,unroll-loops")
    const int lim=2e5+100;
#else
    const int lim=2e3+100;
#endif

#include "bits/stdc++.h"
using namespace std;

//#define int long long
#define pb push_back

const int mod=1e9+7;
using pii=pair<int,int>;

inline void solve(){
    int n,m;
    cin>>n>>m;
    string s[n];
    for(int i=0;i<n;i++){
        cin>>s[i];
    }
    set<int>vis;
    int ans=0;
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            if(s[i][j]=='*'&&!vis.count(i*m+j)){
                ans++;
                int l=i;
                for(;;){
                    if(l<n&&s[l][j]=='*'){
                        l++;
                    }else{
                        break;
                    }
                }
                int r=j;
                for(;;){
                    if(r<m&&s[i][r]=='*'){
                        r++;
                    }else{
                        break;
                    }
                }
                for(int ll=i;ll<l;ll++){
                    for(int rr=j;rr<r;rr++){
                        vis.insert(ll*m+rr);
                    }
                }
            }
        }
    }
    cout<<ans<<"\n";
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
#ifdef Local  
    freopen(".in","r",stdin);
    freopen(".out","w",stdout);
#else
    //freopen("grass.in","r",stdin);
    //freopen("grass.out","w",stdout);
#endif
    int t=1;
    //cin>>t;
    while (t--)
    {
        solve();
    }
}

Subtask #1
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct