Compilare: user.cpp:108:2: warning: no newline at end of file user.cpp:12: warning: non-local variable '<anonymous struct> line [2000105]' uses anonymous type user.cpp: In function 'void read()': user.cpp:20: warning: unused variable 'x' user.cpp: In function 'void solve(int, int)': user.cpp:85: warning: comparison between signed and unsigned integer expressions user.cpp:93: warning: comparison between signed and unsigned integer expressions