Compilare: user.cpp: In function ‘void update(trie*, char*)’: user.cpp:23:13: warning: NULL used in arithmetic [-Wpointer-arith] {if (l[0]==NULL) {p->rel+=newrel; ^ user.cpp: In function ‘void query(trie*, char*)’: user.cpp:33:12: warning: NULL used in arithmetic [-Wpointer-arith] {if (l[0]==NULL) {int i,maxim=0,q=0; ^ user.cpp: In function ‘void rez()’: user.cpp:58:28: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] for (j=0;j<=32;j++) t->s[j]=NULL; ^ user.cpp:63:31: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[33]’ [-Wformat=] fscanf(f,"%s",&k); ^ user.cpp:66:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i<strlen(k)) {int q; ^ user.cpp:72:86: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] for (j=0;j<=32;j++) p1->s[j]=NULL; ^ user.cpp:87:32: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[33]’ [-Wformat=] fscanf(f,"%s ",&k); ^ user.cpp: In function ‘int main()’: user.cpp:104:6: warning: unused variable ‘i’ [-Wunused-variable] {int i,j; ^ user.cpp:104:8: warning: unused variable ‘j’ [-Wunused-variable] {int i,j; ^ user.cpp:105:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&test); ^ user.cpp: In function ‘void rez()’: user.cpp:61:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^ user.cpp:63:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&k); ^ user.cpp:85:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] while (m!=0) {fscanf(f,"\n%c ",&chr); ^ user.cpp:87:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s ",&k); ^ user.cpp:88:52: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] if (chr=='U') {fscanf(f,"%d",&newrel); ^