Compilare: main.cpp: In function 'int main()': main.cpp:12:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin>>n>>s+1; ~^~ main.cpp:27:21: warning: 'val' may be used uninitialized in this function [-Wmaybe-uninitialized] s[i]=val+'0'; ~~~^~~~ main.cpp:28:19: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] s[poz]=aux; ~~~~~~^~~~