Compilare: main.cpp: In function 'int solve(int)': main.cpp:19:9: warning: unused variable 'mix' [-Wunused-variable] int mix=0; ^~~ main.cpp:40:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:43:11: warning: unused variable 'j' [-Wunused-variable] int i,j,maxi=0,x; ^ main.cpp:43:13: warning: unused variable 'maxi' [-Wunused-variable] int i,j,maxi=0,x; ^~~~