Compilare: user.cpp: In function ‘void solve()’: user.cpp:8:21: warning: integer overflow in expression [-Woverflow] #define MAX (1<<31)-1 ^ user.cpp:79:19: note: in expansion of macro ‘MAX’ int Min = MAX; ^ user.cpp: In function ‘void read()’: user.cpp:31:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &n, &m); ^ user.cpp:35:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d %d", &x, &y, &z); ^