Compilare: main.cpp: In function 'int movedel(char*, char*)': main.cpp:23:18: warning: NULL used in arithmetic [-Wpointer-arith] 23 | while(c1[0]!=NULL) | ^~~~ main.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(i=0;i<strlen(c1);i++) | ~^~~~~~~~~~~ main.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(i=0;i<strlen(cop1);i++) | ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:87:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 87 | for(i=0;i<strlen(c1);i++) | ~^~~~~~~~~~~