Compilare: main.cpp: In function 'void add(node*, char*)': main.cpp:21:12: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 21 | while(i<strlen(cuvant)){ | ~^~~~~~~~~~~~~~~ main.cpp: In function 'void del(node*, char*)': main.cpp:34:13: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 34 | while (i<strlen(cuvant)){ | ~^~~~~~~~~~~~~~~ main.cpp: In function 'int occur(node*, char*)': main.cpp:44:13: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 44 | while (i<strlen(cuvant)){ | ~^~~~~~~~~~~~~~~ main.cpp: In function 'int prefix(node*, char*)': main.cpp:57:13: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 57 | while (i<strlen(cuvant)){ | ~^~~~~~~~~~~~~~~ main.cpp:56:9: warning: unused variable 'maxim' [-Wunused-variable] 56 | int maxim=-1; | ^~~~~