Compilare: main.cpp: In function 'int numarare()': main.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=strlen(s);i++) ~^~~~~~~~~~~ main.cpp: In function 'void transformare()': main.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=strlen(s);i++) ~^~~~~~~~~~~ main.cpp:25:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(s[i]<='9' && s[i]>='0') ^ main.cpp: In function 'int secventa_max()': main.cpp:37:9: warning: unused variable 'maxi' [-Wunused-variable] int maxi=0; ^~~~ main.cpp:45:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^