Compilare: user.cpp:22:10: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int bit[1<<N_MAX + 1]; ^ user.cpp:23:9: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int dp[1<<N_MAX + 1][N_MAX]; ^ user.cpp: In function ‘void read()’: user.cpp:30:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ user.cpp:35:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &x, &y, &z); ^