Compilare: user.cpp: In function ‘int main()’: user.cpp:32:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<strlen(cuv2);j++){ ^ user.cpp:45:15: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] text2[k2]=NULL; ^ user.cpp:25:22: warning: unused variable ‘p’ [-Wunused-variable] {char text[300],*p,spatiu[5]={' '},*cuv2,text2[400001]; ^ user.cpp:25:24: warning: unused variable ‘spatiu’ [-Wunused-variable] {char text[300],*p,spatiu[5]={' '},*cuv2,text2[400001]; ^ user.cpp:25:46: warning: variable ‘text2’ set but not used [-Wunused-but-set-variable] {char text[300],*p,spatiu[5]={' '},*cuv2,text2[400001]; ^ user.cpp:26:23: warning: unused variable ‘poz_max’ [-Wunused-variable] long i,j,cuv=0,P,poz_max,maxi=0,k2=0,b[20001],p1,k; ^