Gold

input/code.cpp: In function 'int main()':
input/code.cpp:32:21: warning: 'py' may be used uninitialized in this function [-Wmaybe-uninitialized]
     cout<<dfs(px, py)<<endl;
                     ^
input/code.cpp:32:21: warning: 'px' may be used uninitialized in this function [-Wmaybe-uninitialized]

#include <bits/stdc++.h>
#define ll long long

using namespace std;

int v[55][55];
int b[55][55];

int dfs (int x, int y) {
    if (b[y][x]) return 0;
    if (v[y][x] < 0) return 0;
    b[y][x] = 1;
    int ans = max(0, v[y][x]);
    if (v[y + 1][x] == -2 || v[y - 1][x] == -2 || v[y][x + 1] == -2 || v[y][x - 1] == -2) return ans;
    return ans + dfs(x + 1, y) + dfs(x - 1, y) + dfs(x, y + 1) + dfs(x, y - 1);
}

int main () {
    int n, m;
    cin>>m>>n;
    int px, py;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            char c;
            cin>>c;
            if (c == '#') v[i][j] = -1;
            if (c == 'P') py = i, px = j;
            if (c == 'G') v[i][j] = 1;
            if (c == 'T') v[i][j] = -2;
        }
    }
    cout<<dfs(px, py)<<endl;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED

Test 16

Verdict: ACCEPTED

Test 17

Verdict: ACCEPTED

Test 18

Verdict: ACCEPTED

Test 19

Verdict: ACCEPTED

Test 20

Verdict: ACCEPTED

Test 21

Verdict: ACCEPTED

Test 22

Verdict: ACCEPTED

Test 23

Verdict: ACCEPTED

Test 24

Verdict: ACCEPTED