Nb permutation algorithm
PLL (permute the last layer). Group: Corners and edges.
Nb permutation: the top face is yellow all over. The algorithm swaps the front-right corner and the back-left corner, and swaps the left edge and the right edge.
The diagram shows the cube from above with the front at the bottom and yellow on top.
Algorithm
R' U R U' R' F' U' F R U R' F R' F' R U' R
17 moves.
Other algorithms
r' D' F r U' r' F' D r2 U r' U' r' F r F'R' U L' U2 R U' L R' U L' U2 R U' LR' U R U' R' F' U' F R U R' U' R U' f R f'
Source: www.speedsolving.com