Compilare: user.cpp: In function ‘void printa(arbore)’: user.cpp:17:101: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("st:%d dr:%d sum:%d smax:%d pref:%d suf:%d\n", a.st, a.dr, a.sump, a.ssmax, a.pref, a.suf); ^ user.cpp:17:101: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] user.cpp:17:101: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘long long int’ [-Wformat=] user.cpp:17:101: warning: format ‘%d’ expects argument of type ‘int’, but argument 5 has type ‘long long int’ [-Wformat=] user.cpp:17:101: warning: format ‘%d’ expects argument of type ‘int’, but argument 6 has type ‘long long int’ [-Wformat=] user.cpp:17:101: warning: format ‘%d’ expects argument of type ‘int’, but argument 7 has type ‘long long int’ [-Wformat=] user.cpp: In function ‘int main()’: user.cpp:89:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:96:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x); ^ user.cpp:122:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &t); ^ user.cpp:126:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &op, &a, &b); ^