Compilare: main.cpp: In function 'bool eSubsir(char*, char*)': main.cpp:23:54: warning: NULL used in arithmetic [-Wpointer-arith] 23 | for(unsigned int j = lowerLimit; b[j] != NULL; j-=-1) | ^~~~ main.cpp: In function 'int main()': main.cpp:49:29: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 49 | if(strlen(m[i]) > mmax){ | ~~~~~~~~~~~~~^~~~~~ main.cpp:53:29: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 53 | if(strlen(m[i]) == mmax) | ~~~~~~~~~~~~~^~~~~~~ main.cpp:62:35: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 62 | for(unsigned int i = 1; i <= n; i-=-1){ | ~~^~~~ main.cpp:65:39: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 65 | for(unsigned int j = 1; j <= n; j-=-1) | ~~^~~~