Submission #1214247

#	Time	Username	Problem	Language	Result	Execution time	Memory
1214247		spetr	Text editor (CEOI24_editor)	C++20	0 / 100	4111 ms	446424 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define ll long long
const ll mmod = 998244353;  
#define vl vector<long long>
#define vll vector<vector<long long>>

ll pow(ll x, ll n, ll mod){
    if (n == 0){
        return 1;
    }
ll half = pow(x, n / 2, mod);
ll half_square = (half * half) % mod;

if (n % 2 == 0) {
    return half_square;
} else {
    return (half_square * x) % mod;
}
}   


ll inversion_x(ll x, ll m){
    ll vysledek = pow(x,m-2);
    return vysledek;
}


int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll n;
    ll sx,sy;
    ll ex,ey;

    cin >> n;
    cin >> sy >> sx;
    cin >> ey >> ex;

    vl lines;
    for (ll i = 0; i<n; i++){
        ll num;
        cin >> num;
        lines.push_back(num);
    }



    queue<vl> fronta;
    fronta.push({sx-1,sy-1,0});
    set<vl> visited;

    vll dirs {{1,0},{-1,0},{0,1},{0,-1}};
    while (fronta.size() > 0){
        vl prvek = fronta.front();
        fronta.pop();

        ll x = prvek[0];
        ll y = prvek[1];
        ll dist = prvek[2];

        if (x == (ex-1) && y == (ey-1)){
            cout << dist;
            return 0;
        }

        auto je = visited.find({x,y});
        if (je == visited.end()){
            visited.insert({x,y});
            for (int i = 0; i < dirs.size(); i++){
                ll nx,ny;
                nx = x + dirs[i][0];
                ny = y + dirs[i][1];

                if (ny >= 0 && ny < n){
                if (nx < 0){ // Toto se mohlo stát jen při pohybu doleva
                    ny -= 1;
                    if (ny >= 0 && ny < n){
                        nx = lines[ny];}
                }

                else if (nx > lines[ny]){
                    if (dirs[i][1] == 0){
                        nx = 0;
                        ny ++;
                    }
                    else{
                        if (ny >= 0 && ny < n){
                            nx = lines[ny];
                        }
                    }
                }

                if (ny >= 0 && ny < n && nx >= 0 && nx <= lines[ny]){
                    fronta.push({nx, ny, dist + 1});
                    
                }
            }
            }
        }
    }
    cout << 0;
    return 0;
}

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