quality.cpp: In function 'int rectangle(int, int, int, int, int**)':
quality.cpp:31:16: error: declaration of 'int m' shadows a parameter
31 | int l = 1, m, h = m * n;
| ^
quality.cpp:15:19: note: 'int m' previously declared here
15 | int rectangle(int m, int n, int h, int w, int **a)
| ~~~~^
quality.cpp:31:19: error: declaration of 'int h' shadows a parameter
31 | int l = 1, m, h = m * n;
| ^
quality.cpp:15:33: note: 'int h' previously declared here
15 | int rectangle(int m, int n, int h, int w, int **a)
| ~~~~^