Compilare: main.cpp: In function 'int verif(char*, char*)': main.cpp:15:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(a)&&j<strlen(b);i++) ~^~~~~~~~~~ main.cpp:15:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(a)&&j<strlen(b);i++) ~^~~~~~~~~~ main.cpp:19:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j==strlen(b)) ~^~~~~~~~~~~ main.cpp:12:9: warning: unused variable 'i' [-Wunused-variable] int i=0,j=0; ^