Compilare: user.cpp: In function ‘int main()’: user.cpp:7:36: warning: unused variable ‘nrtotalc’ [-Wunused-variable] {unsigned long long n,m,k,i,j,x,y,nrtotalc=0,nrtotalr=0,c=0,r=0,max1,max2; ^ user.cpp:7:47: warning: unused variable ‘nrtotalr’ [-Wunused-variable] {unsigned long long n,m,k,i,j,x,y,nrtotalc=0,nrtotalr=0,c=0,r=0,max1,max2; ^ user.cpp:7:58: warning: unused variable ‘c’ [-Wunused-variable] {unsigned long long n,m,k,i,j,x,y,nrtotalc=0,nrtotalr=0,c=0,r=0,max1,max2; ^ user.cpp:7:62: warning: unused variable ‘r’ [-Wunused-variable] {unsigned long long n,m,k,i,j,x,y,nrtotalc=0,nrtotalr=0,c=0,r=0,max1,max2; ^