Submission #1068740

#	Time	Username	Problem	Language	Result	Execution time	Memory
1068740		vjudge1	Text editor (CEOI24_editor)	C++17	30 / 100	274 ms	78884 KiB

Main

#include<bits/stdc++.h>
using namespace std;
int calc(int x1, int y1, int x2, int y2){
    return abs(x2 - x1) + abs (y2 - y1);
}
int main(){
      int n;
    cin >> n;
    int x1,y1,x2,y2;
    cin >> x1 >> y1 >> x2 >> y2;
    int arr[n + 1];
    int t1 = 0;
    for(int i = 1; i <= n; i++){
        cin >> arr[i];
        if(arr[i] > 5000){
            t1++;
        }
    } 
    arr[0] = arr[1];
    if(t1 > 0 or n > 5000){
    if(n == 1){
        cout << 0 <<endl;
    }else{
    int res1 = calc(x1,y1,x2,y2);
    int res2 = 1e9;
    if(x1 != n){
        res2 = (arr[0] + 2) - y1 + calc(x1 + 1, 1, x2, y2);
    }
    int res3 = 1e9;
    if(x1 != 1){
        res3 = y1 + calc(x1 - 1, arr[0] + 1, x2, y2);
    }else{
        res3 = 1 + y1 + calc(1, arr[0] + 1, x2, y2);
    }
    int res4 = n - x1;
    res4 = res4 + 1 + min(calc(n - 1, 1, x2, y2), calc(n - 1, arr[0] + 1, x2, y2));
    res1 = min(res1, res2);
    res1 = min(res1, res3);
    res1 = min(res1, res4);
    cout << res1;
    }
    }else{

    long long int dp[n + 2][5002];
    long long int vis[n + 2][5002];
   
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= 5000; j++){
            dp[i][j] = 1e9;
            vis[i][j] = 0;
        }
    }
    queue<pair<int,int>>q;
    q.push({x1,y1});
    dp[x1][y1] = 0;
    vis[x1][y1]++;
    while(!q.empty()){
        pair<int,int>v = q.front();
        q.pop();
        int x = v.first;
        int y = v.second;
        
            
            if(x == x2 and y == y2){
                cout << dp[x][y];
                return 0;
            }
            int nx,ny;
            if(y != (arr[x] + 1)){
                nx = x;
                ny = y + 1;
                if(vis[nx][ny] == 0){
                    dp[nx][ny] = dp[x][y] +1;
                    q.push({nx,ny});
                    vis[nx][ny]++;
                }
            }else{
                if(x != n){
                    nx = x + 1;
                    ny = 1;
                    if(vis[nx][ny] == 0){
                    dp[nx][ny] = dp[x][y] +1;
                    q.push({nx,ny});
                    vis[nx][ny]++;
                }
                }
            }
            if(y > 1){
                nx = x;
                ny = y - 1;
                if(vis[nx][ny] == 0){
                    dp[nx][ny] = dp[x][y] +1;
                    q.push({nx,ny});
                    vis[nx][ny]++;
                }
            }else{
                if(x != 1){
                    nx = x - 1;
                    ny  = arr[x - 1] + 1;
                    if(vis[nx][ny] == 0){
                    dp[nx][ny] = dp[x][y] +1;
                    q.push({nx,ny});
                    vis[nx][ny]++;
                }
                }
            }
            if(x != 1){
                nx = x - 1;
                ny = min(arr[x - 1] + 1, y);
                if(vis[nx][ny] == 0){
                    dp[nx][ny] = dp[x][y] +1;
                    q.push({nx,ny});
                    vis[nx][ny]++;
                }
            }
            if(x != n){
                nx = x + 1;
                ny = min(arr[x + 1] + 1, y);
                if(vis[nx][ny] == 0){
                    dp[nx][ny] = dp[x][y] +1;
                    q.push({nx,ny});
                    vis[nx][ny]++;
                }
            }
        
    }
   // cout << endl;
   // cout << dp[2][1] << endl;
        }
}

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 0 / 26
• Subtask 4: 11 / 11
• Subtask 5: 0 / 44