View Compilation Error

0_0_28476249_25452.cpp: In function 'int main()':
0_0_28476249_25452.cpp:64:78: error: 'get_min' was not declared in this scope
                 f[i][j] = get_min(1, max(1, j - F[i][j]), min(m, j + F[i][j])) + t[i][j];
                                                                              ^
0_0_28476249_25452.cpp:64:86: error: no match for 'operator[]' (operand types are 'seg' and 'int')
                 f[i][j] = get_min(1, max(1, j - F[i][j]), min(m, j + F[i][j])) + t[i][j];
                                                                                      ^