Compilare: main.cpp: In function 'bool cmp(char*, char*)': main.cpp:31:12: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 31 | while(i<strlen(a) && a[i]==b[i]) | ~^~~~~~~~~~ main.cpp:35:13: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 35 | return i==strlen(a); | ~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:72:22: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 72 | for(int i=len-1;i<strlen(b);i++) | ~^~~~~~~~~~