Compilare: main.cpp: In function 'int main()': main.cpp:65:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 65 | for(int i=0;i<strlen(a);i++) | ~^~~~~~~~~~ main.cpp:68:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int i=0;i<strlen(b);i++) | ~^~~~~~~~~~