Compilare: user.cpp: In function ‘void RMQ()’: user.cpp:24:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &X, &Y); ^ user.cpp: In function ‘int main()’: user.cpp:53:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &M); ^ user.cpp:56:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^ user.cpp: In function ‘void Power()’: user.cpp:17:28: warning: iteration 16u invokes undefined behavior [-Waggressive-loop-optimizations] p[i] = p[i - 1] * 2; ^ user.cpp:16:5: note: containing loop for (int i = 1; i <= 20; i++) ^ user.cpp: In function ‘int main()’: user.cpp:17:28: warning: iteration 16u invokes undefined behavior [-Waggressive-loop-optimizations] p[i] = p[i - 1] * 2; ^ user.cpp:16:5: note: containing loop for (int i = 1; i <= 20; i++) ^