Compilare: main.cpp: In function 'int main()': main.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int i=0; i<strlen(t); i++) | ~^~~~~~~~~~ main.cpp:25:14: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] 25 | v[j]=NULL; | ^~~~ main.cpp:30:27: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int m=0; m<strlen(t); m++) | ~^~~~~~~~~~ main.cpp:39:27: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int m=0; m<strlen(s); m++) | ~^~~~~~~~~~