Compilare: user.cpp: In function 'void read()': user.cpp:57: warning: format '%s' expects type 'char*', but argument 2 has type 'char (*)[260]' user.cpp: In function 'void evalx(int, int, int, int)': user.cpp:11: warning: 'nrf' may be used uninitialized in this function user.cpp: In function 'void evalnr(int, int, int, int)': user.cpp:20: warning: 'nrf' may be used uninitialized in this function user.cpp: In function 'void solve()': user.cpp:64: warning: 'x' may be used uninitialized in this function