Suunnistus

input/code.cpp: In function 'void solve()':
input/code.cpp:33:11: warning: 'sx' may be used uninitialized in this function [-Wmaybe-uninitialized]
   33 |     q.push({sy, sx, 0, 0});
      |     ~~~~~~^~~~~~~~~~~~~~~~
input/code.cpp:33:11: warning: 'sy' may be used uninitialized in this function [-Wmaybe-uninitialized]

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
typedef long long ll;
// chmod u+x b.sh
void solve(); int main() {
    ios_base::sync_with_stdio(0); cout.tie(0);
    solve();
}

char t[510][510];
bool vi[15][510][510];

void solve()
{
    int h, w, r;
    cin >> h >> w >> r;

    int sy, sx;
    for (int y = 0; y < h; y++) {
        for (int x = 0; x < w; x++) {
            char a;
            cin >> a;
            t[y][x] = a;
            if (a == 'S') {
                sy = y;
                sx = x;
            }
        }
    }
    queue<array<int, 4>> q;
    q.push({sy, sx, 0, 0});
    while (!q.empty()) {
        auto [y, x, lay, dst] = q.front(); q.pop();
        if (t[y][x] == '#') continue;
        if (vi[lay][y][x]) continue;
        vi[lay][y][x] = true;
        //cout << "x: " << x << " y: " << y <<" lay = " << lay << " dst = " << dst << endl;

        if (lay == r && t[y][x] == 'E') {
            cout << dst;
            return;
        }
        
        int nlay = (t[y][x] == lay + '1') ? lay + 1 : lay;

        static pair<int, int> dirs[4] = {{1, 0}, {-1, 0}, {0, 1}, {0, -1}};
        for (auto [dy, dx] : dirs) {
            int nx = x + dx;
            int ny = y + dy;
            if (nx < 0 || ny < 0 || nx >= w || ny >= h) continue;
            q.push({ny, nx, nlay, dst + 1});
        }
    }
    cout << -1;
}

Test 1

Group: 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

Test 7

Group: 2, 3

Verdict: ACCEPTED

Test 8

Group: 2, 3

Verdict: ACCEPTED

Test 9

Group: 2, 3

Verdict: ACCEPTED

Test 10

Group: 3

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 2, 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED

Test 16

Group: 3

Verdict: ACCEPTED

Test 17

Group: 2, 3

Verdict: ACCEPTED