Submission #864380

#	Time	Username	Problem	Language	Result	Execution time	Memory
864380		gutzzy	Pohlepko (COCI16_pohlepko)	C++14	5 / 80	134 ms	4400 KiB

pohlepko

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

int n;
int m;
string ans = "{";
vector<vector<char>> board;

void bt(int i, int j, string cur){
    if(i==n-1 and j==m-1){
        ans = cur;
        return;
    }
    if(i==n-1){
        j++;
        cur+=board[i][j];
        if(cur<=ans){
            ans = cur;
            bt(i,j,cur);
        }
        return;
    }
    else if(j==m-1){
        i++;
        cur+=board[i][j];
        if(cur<=ans){
            ans = cur;
            bt(i,j,cur);
        }
        return;
    }
    else{
        if(board[i+1][j]!=board[i][j+1]){
            if(board[i+1][j]<board[i][j+1]) i++;
            else j++;
            cur += board[i][j];
            if(cur<=ans){
                ans = cur;
                bt(i,j,cur);
            }
            return;
        }
        else{
            cur += board[i+1][j];
            if(cur<=ans){
                ans = cur;
                bt(i+1,j,cur);
                bt(i,j+1,cur);
            }
            return;
        }
    }
    
}

int main(){
    cin >> n >> m;
    board = vector<vector<char>>(n,vector<char>(m));
    
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            cin >> board[i][j];
        }
    }
    
    string c;
    c += board[0][0];
    
    bt(0,0,c);
    
    cout << ans << endl;
    
    return 0;
}

• Subtask 1: 5 / 80