Compilare: main.cpp: In function 'int rezolvare1(char*)': main.cpp:25:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<=strlen(s)-1; i++) ~^~~~~~~~~~~~~ main.cpp: In function 'int exista(char*)': main.cpp:53:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<strlen(s); j++) ~^~~~~~~~~~ main.cpp: In function 'void rezolvare2i(char*)': main.cpp:181:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<strlen(s); i++) ~^~~~~~~~~~ main.cpp:190:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<strlen(s); i++) ~^~~~~~~~~~