Compilare: user.cpp: In function 'int solve(int, int)': user.cpp:27: warning: 'last1' may be used uninitialized in this function user.cpp:27: warning: 'last2' may be used uninitialized in this function user.cpp:27: warning: 'last3' may be used uninitialized in this function user.cpp: In function 'int main()': user.cpp:27: warning: 'last3' may be used uninitialized in this function user.cpp:27: note: 'last3' was declared here user.cpp:27: warning: 'last2' may be used uninitialized in this function user.cpp:27: note: 'last2' was declared here user.cpp:27: warning: 'last1' may be used uninitialized in this function user.cpp:27: note: 'last1' was declared here