Compilare: user.cpp: In function ‘long long int sum(long long int, long long int)’: user.cpp:22:14: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] x=s[y]+(c-y)*l; ~~^~~ user.cpp: In function ‘int main()’: user.cpp:22:14: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] x=s[y]+(c-y)*l; ~~^~~ user.cpp:10:31: note: ‘y’ was declared here long long st=1,dr=c,mij,x,y; ^ user.cpp:22:14: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] x=s[y]+(c-y)*l; ~~^~~ user.cpp:10:31: note: ‘y’ was declared here long long st=1,dr=c,mij,x,y; ^ user.cpp:22:14: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] x=s[y]+(c-y)*l; ~~^~~ user.cpp:10:31: note: ‘y’ was declared here long long st=1,dr=c,mij,x,y; ^ user.cpp:22:14: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] x=s[y]+(c-y)*l; ~~^~~ user.cpp:10:31: note: ‘y’ was declared here long long st=1,dr=c,mij,x,y; ^