Compilare: user.cpp: In function ‘void Build()’: user.cpp:24:55: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[i][j] = MAX( rmq[i-1][j], rmq[i-1][j+(1<<i-1)] ); ^ user.cpp:5:23: note: in definition of macro ‘MAX’ #define MAX(a,b)((a)>(b)?(a):(b)) ^ user.cpp:24:55: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] rmq[i][j] = MAX( rmq[i-1][j], rmq[i-1][j+(1<<i-1)] ); ^ user.cpp:5:31: note: in definition of macro ‘MAX’ #define MAX(a,b)((a)>(b)?(a):(b)) ^ user.cpp: In function ‘int main()’: user.cpp:81:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teamwork.in","r",stdin); ^ user.cpp:82:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teamwork.out","w",stdout); ^ user.cpp:84:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&N); ^ user.cpp:85:50: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i = 1; i <= N; ++i) scanf("%d",&v[i]); ^