Compilare: main.cpp: In function 'int main()': main.cpp:18:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 18 | for (int j=0;j<strlen(b);j++) | ~^~~~~~~~~~ main.cpp:24:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 24 | for (int j=0;j<strlen(a)-1;j++) | ~^~~~~~~~~~~~