Compilare: main.cpp: In function 'bool inmat(int, int)': main.cpp:13:13: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 13 | return i<=n & i<=m && j>=1 && j>=1; | ~^~~ main.cpp: In function 'int main()': main.cpp:51:26: warning: variable 'ok' set but not used [-Wunused-but-set-variable] 51 | bool ok=true; | ^~ main.cpp:30:9: warning: unused variable 'k' [-Wunused-variable] 30 | int k; | ^