Submission #1102234

#	Time	Username	Problem	Language	Result	Execution time	Memory
1102234		sktodow	Tracks in the Snow (BOI13_tracks)	C++17	2.19 / 100	102 ms	12236 KiB

tracks

#include<bits/stdc++.h>
using namespace std;
 
#define int long long 
#define pb push_back
#define mid a+(b-a)/2
const int N=5e5+5;
const int MOD=1e9+7;
const int inf=2e18+5;



int32_t main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    
    int n,m; cin>>n>>m;
    int ans=0;
    char curr;
    for(int i=0;i<n;i++){
        for(int j=1;j<m;j++){
            char x; cin>>x;
            if(ans==0){
                ans++;
                curr=x;
            }
            if(x!='.' && curr!=x){
                ans++;
                break;
            }
        }
        if(ans==2){break;}
    }
    cout<<ans;
    return 0;
}   

• Subtask 1: 0 / 30
• Subtask 2: 2.1875 / 70