Compilare: user.cpp: In function ‘int main()’: user.cpp:38:13: warning: variable ‘start’ set but not used [-Wunused-but-set-variable] clock_t start, finish; ^ user.cpp:38:20: warning: variable ‘finish’ set but not used [-Wunused-but-set-variable] clock_t start, finish; ^ user.cpp: In function ‘void Read()’: user.cpp:17:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:19:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &R[i]); ^