Compilare: user.cpp:79:59: warning: "/*" within comment [-Wcomment] if (s[i][n] - s[i][mid] == v[x[3]]){ //************************* ^ user.cpp: In function ‘int main()’: user.cpp:36:17: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] int ok = 0; ^ user.cpp:31:15: warning: unused variable ‘l1’ [-Wunused-variable] int c1,c2,l1,l2,mid,st,dr; ^