Compilare: main.cpp: In function 'int main()': main.cpp:81:21: warning: 'sign' may be used uninitialized [-Wmaybe-uninitialized] 81 | num = num*sign; | ~~~~^~~~~~~~~~ main.cpp:74:21: note: 'sign' was declared here 74 | int sign; | ^~~~ main.cpp:49:22: warning: 'sign' may be used uninitialized [-Wmaybe-uninitialized] 49 | numx = numx*sign; | ~~~~~^~~~~~~~~~~ main.cpp:42:21: note: 'sign' was declared here 42 | int sign; // 1 = +; -1 = -; | ^~~~