Submission #1044083

#	Time	Username	Problem	Language	Result	Execution time	Memory
1044083		VahanAbraham	Text editor (CEOI24_editor)	C++14	14 / 100	126 ms	22052 KiB

Main

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <algorithm>
#include <cstring>
#include <cstdio>
#include <sstream>
#include <map>
#include <stack>
#include <set>
#include <queue>
#include <list>
#include <unordered_set>
#include <unordered_map>
#include <math.h>
#include <bitset>
#include <cmath>
#include <vector>
#include <iomanip>
#include <random>
#include <chrono>
#include <cassert>

using namespace std;

#define ll long long
#define fr first
#define sc second
#define pb push_back
#define US freopen(".in", "r", stdin); freopen("j.out", "w", stdout);

ll gcd(ll a, ll b)
{
    if (a == 0 || b == 0) {
        return  max(a, b);
    }
    if (a <= b) {
        return gcd(a, b % a);
    }
    else {
        return gcd(a % b, b);
    }
}
ll lcm(ll a, ll b) {
    return (a / gcd(a, b)) * b;
}

const int N = 300005;
const ll oo = 100000000000000000, MOD = 1000000007;

int l[N];
int dist[5005][5005];
int dx[4] = { 1,-1,0,0 };
int dy[4] = { 0,0,1,-1 };

void solve() {
    int n;
    int xs, ys, xe, ye;
    cin >> n >> xs >> ys >> xe >> ye;
    for (int i = 1; i <= n; ++i) {
        cin >> l[i];
    }
    queue<pair<int, int>> q;
    q.push({ xs,ys });
    dist[xs][ys] = 0;
    while (q.empty() != 1) {
        pair<int, int> p;
        p = q.front();
        q.pop();
        for (int i = 0; i < 4; ++i) {
            int x = p.fr + dx[i], y = p.sc + dy[i];
            if (x <= 0) {
                continue;
            }
            if (x > n) {
                continue;
            }
            if (x == p.fr) {
                if (y > l[x] + 1) {
                    x++;
                    y = 1;
                }
                else {
                    if (y <= 0) {
                        --x;
                        y = l[x] + 1;
                    }
                }
            }
            else {
                if (y > l[x] + 1) {
                    y = l[x] + 1;
                }
            }
            if (x >= 1 && x <= n) {
                if (dist[x][y] == 0) {
                    if (x == xs && y == ys) {
                        continue;
                    }
                    dist[x][y] = dist[p.fr][p.sc] + 1;
                    q.push({ x,y });
                }
            }
        }
    }
    cout << dist[xe][ye] << endl;
}

int main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    //US
    int tt = 1;
    //cin >> tt;
    while (tt--) {
        solve();
    }
}

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