Compilare: user.cpp: In function ‘int Check(int)’: user.cpp:12:16: warning: unused variable ‘Len’ [-Wunused-variable] int Diff , Len; ^ user.cpp: In function ‘int main()’: user.cpp:31:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &P); ^ user.cpp:34:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &V[i]); ^