Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:24:57: error: ‘abs’ was not declared in this scope D[i][j] = abs(A[i][j] - MAX(D[i - 1][j], D[i][j - 1])); ^ user.cpp:24:57: note: suggested alternative: In file included from user.cpp:2:0: /usr/include/c++/4.8/cmath:99:5: note: ‘std::abs’ abs(_Tp __x) ^ user.cpp:13:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d", &N, &M); ^ user.cpp:17:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &A[i][j]); ^