Eroare de compilare: user.cpp: In function ‘void solve()’: user.cpp:17:20: error: ‘pow’ was not declared in this scope long p = pow(2.f,N); ^ user.cpp:19:31: error: ‘memcpy’ was not declared in this scope memcpy(act, mat, sizeof(mat)); ^ user.cpp: In function ‘int main()’: user.cpp:47:28: 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:50:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &mat[i][j]); ^