Compilare: main.cpp: In function 'void solve()': main.cpp:47:24: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] 47 | pattern[patSize] = NULL; | ^~~~ main.cpp:54:13: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 54 | while(i < strlen(str)) { | ~~^~~~~~~~~~~~~ main.cpp:55:30: warning: NULL used in arithmetic [-Wpointer-arith] 55 | if(pattern[j + 1] == NULL) { | ^~~~