Language: C++

#include "bits/stdc++.h"
#include<unordered_map>
#include<unordered_set>
#pragma warning(disable:4996)
using namespace std;
using ld = long double;
template<class T>
using Table = vector<vector<T>>;
const ld eps=1e-9;

int dp[1010][1010][2][2][2][2];

const int dx[] = { 1,0,-1,0 };
const int dy[] = { 0,1,0,-1 };


//// < "D:\D_Download\Visual Studio 2015\Projects\programing_contest_c++\Debug\a.txt" > "D:\D_Download\Visual Studio 2015\Projects\programing_contest_c++\Debug\b.answer"
int main() {
	int H, W; cin >> H >> W;
	for (int i = 0; i < 1010; ++i)for (int j = 0; j < 1010; ++j)for (int k = 0; k < 2; ++k)for (int l = 0; l < 2; ++l)for (int m = 0; m < 2; ++m)for (int n = 0; n < 2; ++n) {
		dp[i][j][k][l][m][n] = 1e9;
	}
	dp[5][5][0][0][0][0] = 0;
	vector<vector<int>>field(H + 8, vector<int>(W + 8));
	for (int i = 0; i < H; ++i) {
		string st; cin >> st;
		for (int j = 0; j < W; ++j) {
			if (st[j] != '.') {
				field[i + 5][j + 5] = st[j] - '0';
			}
		}
	}
	for (int nowy = 5; nowy < H + 6; ++nowy) {
		for (int nowx = 5; nowx < W +6; ++nowx) {
			for (int eat_ld = 0; eat_ld < 2; ++eat_ld) {
				for (int eat_d = 0; eat_d < 2; ++eat_d) {
					for (int eat_r = 0; eat_r < 2; ++eat_r) {
						for (int eat_ru = 0; eat_ru < 2; ++eat_ru) {
							if (1e9 <= dp[nowy][nowx][eat_ld][eat_d][eat_r][eat_ru])continue;
							vector<vector<char>>baseeats(4, vector<char>(4));
							baseeats[2][0] = eat_ld;
							baseeats[2][1] = eat_d;
							baseeats[1][2] = eat_r;
							baseeats[0][2] = eat_ru;
							baseeats[1][1] = true;
							for (int way = 0; way < 2; ++way) {
								const int  nextx = nowx + dx[way];
								const int nexty = nowy + dy[way];
								const int ax = 1 + dx[way];
								const int ay = 1 + dy[way];
								bool flag = false;
								for (int w = 0; w < 4; ++w) {
									vector<vector<char>>eats(baseeats);
									int eat_sum = 0;
									if (!eats[ay][ax]) {
										eats[ay][ax] = true;
										eat_sum += field[nexty][nextx];
									}
										for (int v = 0; v < 4; ++v) {
											if (v == w)continue;
											else {
												if (!eats[ay + dy[v]][ax + dx[v]]) {
													eats[ay + dy[v]][ax + dx[v]] = true;
													eat_sum += field[nexty + dy[v]][nextx + dx[v]];
												}
											}
										}
										const int nexteat_ld = eats[2+dy[way]][0+dx[way]];
										const int nexteat_d = eats[2 + dy[way]][1 + dx[way]];
										const int nexteat_r = eats[1 + dy[way]][2 + dx[way]];
										const int nexteat_ru = eats[0 + dy[way]][2 + dx[way]];
										int n = dp[nowy][nowx][eat_ld][eat_d][eat_r][eat_ru] + eat_sum;
										dp[nexty][nextx][nexteat_ld][nexteat_d][nexteat_r][nexteat_ru] = min(dp[nexty][nextx][nexteat_ld][nexteat_d][nexteat_r][nexteat_ru], n);
									}
								}
							}
						}
					}
				}
			}
		}
	}
	int ans = 1e9;
	for (int l = 0; l < 2; ++l) {
		for (int m = 0; m < 2; ++m) {
			for (int n = 0; n < 2; ++n) {
				for (int o = 0; o < 2; ++o) {
					ans = min(ans, dp[H + 4][W + 4][l][m][n][o]);
				}
			}
		}
	}
	cout << ans << endl;

	return 0;
}

Compiler output:
a.cc:84:9: error: expected unqualified-id before 'for'
   84 |         for (int l = 0; l < 2; ++l) {
      |         ^~~
a.cc:84:25: error: 'l' does not name a type; did you mean 'ld'?
   84 |         for (int l = 0; l < 2; ++l) {
      |                         ^
      |                         ld
a.cc:84:32: error: expected unqualified-id before '++' token
   84 |         for (int l = 0; l < 2; ++l) {
      |                                ^~
a.cc:93:9: error: 'cout' does not name a type
   93 |         cout << ans << endl;
      |         ^~~~
a.cc:95:9: error: expected unqualified-id before 'return'
   95 |         return 0;
      |         ^~~~~~
a.cc:96:1: error: expected declaration before '}' token
   96 | }
      | ^