Compilare: main.cpp: In function 'int main()': main.cpp:9:22: warning: variable 'b' set but not used [-Wunused-but-set-variable] int n,i,k,smax,a,b,sc,x,c; ^ main.cpp:9:29: warning: variable 'c' set but not used [-Wunused-but-set-variable] int n,i,k,smax,a,b,sc,x,c; ^