Compilare: main.cpp: In function 'long long int sum(int, int)': main.cpp:18:23: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] return s[y]+1LL*(c-y)*l; ~~^~~ main.cpp: In function 'int main()': main.cpp:18:23: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] return s[y]+1LL*(c-y)*l; ~~^~~ main.cpp:9:15: note: 'y' was declared here long long y; ^ main.cpp:18:23: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] return s[y]+1LL*(c-y)*l; ~~^~~ main.cpp:9:15: note: 'y' was declared here long long y; ^ main.cpp:18:23: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] return s[y]+1LL*(c-y)*l; ~~^~~ main.cpp:9:15: note: 'y' was declared here long long y; ^ main.cpp:18:23: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] return s[y]+1LL*(c-y)*l; ~~^~~ main.cpp:9:15: note: 'y' was declared here long long y; ^