Compilare: main.cpp: In function 'int main()': main.cpp:48:23: warning: 'i' may be used uninitialized [-Wmaybe-uninitialized] 48 | for (i++; s[i] >= '0' and s[i] <= '9'; i++) | ~^~ main.cpp:24:14: note: 'i' was declared here 24 | int cer, i; | ^