Change occurrences of str.format to f-strings (#4118)

* f-string update rsa_cipher.py

* f-string update rsa_key_generator.py

* f-string update burrows_wheeler.py

* f-string update non_recursive_segment_tree.py

* f-string update red_black_tree.py

* f-string update deque_doubly.py

* f-string update climbing_stairs.py

* f-string update iterating_through_submasks.py

* f-string update knn_sklearn.py

* f-string update 3n_plus_1.py

* f-string update quadratic_equations_complex_numbers.py

* f-string update nth_fibonacci_using_matrix_exponentiation.py

* f-string update sherman_morrison.py

* f-string update levenshtein_distance.py

* fix lines that were too long

matrix/sherman_morrison.py

@@ -175,9 +175,7 @@ class Matrix:
                         result[r, c] += self[r, i] * another[i, c]
             return result
         else:
-            raise TypeError(
-                "Unsupported type given for another ({})".format(type(another))
-            )
+            raise TypeError(f"Unsupported type given for another ({type(another)})")
 
     def transpose(self):
         """
@@ -260,7 +258,7 @@ if __name__ == "__main__":
         print(f"v is {v}")
         print("uv^T is %s" % (u * v.transpose()))
         # Sherman Morrison
-        print("(a + uv^T)^(-1) is {}".format(ainv.ShermanMorrison(u, v)))
+        print(f"(a + uv^T)^(-1) is {ainv.ShermanMorrison(u, v)}")
 
     def test2():
         import doctest