Compilare: main.cpp: In function 'bool subsir(char*, char*, int, int)': main.cpp:23:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return i==strlen(x); ~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:47: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if( lung[i]>lmax || lung[i]==lmax && strcmp(s[i],s[pmax]) < 0 ) ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:30:36: warning: unused variable 'ls' [-Wunused-variable] int n,p,i,j,ns=0,lmax=0,pmax=0,ls; ^~ main.cpp:31:10: warning: unused variable 'ok' [-Wunused-variable] bool ok; ^~