Compilare: main.cpp: In function 'int update_Tree(int, int)': main.cpp:31:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:35:18: warning: unused variable 'b' [-Wunused-variable] int m, n, a, b, t, i; ^ main.cpp:35:21: warning: unused variable 't' [-Wunused-variable] int m, n, a, b, t, i; ^ main.cpp:35:24: warning: unused variable 'i' [-Wunused-variable] int m, n, a, b, t, i; ^