Compilare: main.cpp: In function 'int patrat()': main.cpp:83:19: warning: loop variable 'j' of type 'const int&' binds to a temporary constructed from type 'char' [-Wrange-loop-construct] 83 | for (const int& j : v) { | ^ main.cpp:83:19: note: use non-reference type 'const int' to make the copy explicit or 'const char&' to prevent copying main.cpp:47:18: warning: unused variable 'j' [-Wunused-variable] 47 | int i,a,semn,x,j,n; | ^ main.cpp:89:10: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized] 89 | return x; | ^ main.cpp:47:16: note: 'x' was declared here 47 | int i,a,semn,x,j,n; | ^