Compilare: user.cpp: In function ‘int main()’: user.cpp:20:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(j-i>=k) ^ user.cpp:10:11: warning: unused variable ‘sc’ [-Wunused-variable] int i,sc,smax1=0,smax2=0,x,y,n,xc,lung=1,k,S=0,j; ^ user.cpp:10:36: warning: unused variable ‘xc’ [-Wunused-variable] int i,sc,smax1=0,smax2=0,x,y,n,xc,lung=1,k,S=0,j; ^ user.cpp:10:39: warning: unused variable ‘lung’ [-Wunused-variable] int i,sc,smax1=0,smax2=0,x,y,n,xc,lung=1,k,S=0,j; ^ user.cpp:45:22: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<x<<" "<<y<<" "<<smax2; ^ user.cpp:45:14: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<x<<" "<<y<<" "<<smax2; ^